Various implementations include audio devices and methods for noise reduction control in wearable audio devices and/or vehicle audio systems. Certain implementations include a method of controlling a noise cancelation (NC) setting at a vehicle audio system and an active noise reduction (ANR) setting at a non-occluding wearable audio device, the method comprising: adjusting at least one of the NC setting at the vehicle audio system or the ANR setting at the non-occluding wearable audio device in response to detecting the presence of the non-occluding wearable audio device in the vehicle.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
2.
HEADREST SPEAKER WITH OVER-MOLDED ACOUSTIC CHANNEL
Various implementations include headrest speakers and approaches for forming such headrest speakers. In certain implementations, a headrest speaker includes: an acoustic channel; a three-dimensional (3D) acoustically transparent mesh in the acoustic channel; and a foam retaining the acoustically transparent mesh in the acoustic channel.
B60N 2/879 - Appuis-tête avec des caractéristiques supplémentaires ne se rapportant pas au positionnement de l’appui-tête, p. ex. des dispositifs de chauffage ou de refroidissement ou des haut-parleurs
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
3.
Acoustic Driver with Liquid Silicone Rubber (LSR) Surround
Various implementations include an acoustic driver having: a piston with a plurality of protrusions extending around a periphery thereof; and a liquid silicone rubber (LSR) surround, where the LSR surround extends around the plurality of protrusions.
Various implementations include headrest speakers and approaches for forming such headrest speakers. In certain implementations, a headrest speaker includes: an acoustic channel; a three-dimensional (3D) acoustically transparent mesh in the acoustic channel; and a foam retaining the acoustically transparent mesh in the acoustic channel.
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
B60R 11/02 - Autres aménagements pour tenir ou monter des objets pour postes radio, de télévision, téléphones, ou objets similairesDisposition de leur commande
B60R 11/00 - Autres aménagements pour tenir ou monter des objets
Aspects describe a dual-planar retaining piece for stabilizing and securing earpiece in a wearer's ear. The retaining piece is either fixed or removable from the earpiece. The retaining piece includes a first cantilevered portion shaped to flexibly fit under the antitragus of a wearer's ear when the earpiece is worn, a second cantilevered portion shaped to flexibly fit under the antihelix of the wearer's ear when the earpiece is worn, and at least one attachment feature that couples the retaining piece to a body of the earpiece, wherein the body is shaped to fit in the lower concha of the wearer's ear when the earpiece is worn. In aspects, the first and second cantilevered portions are integrally formed.
A flexible arm that is configured to be located between and physically and electrically connect an acoustic module of a headphone to an other portion of the headphone. The flexible arm includes an electrical connection that extends through the entire original resting length of the flexible arm and comprises a conductor that is configured to carry electrical energy between the acoustic module and the other portion of the headphone. The flexible arm also includes at least one link member. A flexible material encases at least some of the at least one link member and at least some of the electrical connection.
A voice capture system including a first and second voice beamformer, a voice mixer, a voice rejected noise beamformer, a noise beamformer adjustor, a jammer suppressor, and a speech enhancer is provided. The first and second voice beamformer and the voice mixer generate a voice enhanced reference signal based on a first and second frequency domain microphone signal. The voice rejected noise beamformer includes filter weights and generates a noise reference signal based on the first and second frequency domain microphone signal. The noise beamformer adjustor adjusts the one or more filter weights of the voice rejected noise beamformer to account for fit variation. The jammer suppressor generates a jammer suppressed signal based on the voice enhanced reference signal and the noise reference signal. The speech enhancer dynamically generates an output voice signal by applying a dynamic noise suppression signal to each frequency bin of the jammer suppressed signal.
Aspects include earphones and related approaches for active noise reduction (ANR) control. In certain cases, an earphone includes: an acoustic source for providing an acoustic output; a pressure sensor that is sensitive to acoustic signals at approximately an infrasonic frequency range; and an active noise reduction (ANR) system coupled with the acoustic source and the pressure sensor, the ANR system configured to provide a noise cancelation signal to the acoustic source based on an input from the pressure sensor.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
A wearable audio device according to various implementations includes: an electro-acoustic transducer for producing sound; a proximity sensor that is configured to detect when the wearable audio device is close to a user; an internal microphone positioned within a housing of the wearable audio device and configured to detect sound in a cavity formed at least in part by a portion of the housing; and a processor that is configured to estimate, based on at least the proximity sensor, whether the wearable audio device is in place on the user's body, and to estimate, based on the internal microphone, whether the user has completed handling of the wearable audio device.
Various aspects include active noise reduction (ANR) headsets and methods of controlling such headsets. In some implementations, a headset includes: at least one electro-acoustic transducer; and at least one control circuit coupled with the at least one electro-acoustic transducer, the at least one control circuit configured to detect an acoustic disturbance in environmental sound, wherein the acoustic disturbance is characterized by a noise level in the environmental sound deviating from a noise threshold, and disable an audio pass-through mode while the acoustic disturbance is detected.
A method for personalized sound virtualization is provided. The method includes measuring environmental sound using a first microphone of a wearable audio device. The first microphone is in or proximate to a right ear of a user. The method further includes measuring the environmental sound using a second microphone of the wearable audio device. The second microphone is in or proximate to a left ear of the user. The method further includes using acoustic data obtained from the measuring of the environmental sound via the first and second microphones, calculating individualized parameters, such as interaural time delay, relating to individualized HRTFs for the user. The method further includes using the individualized parameters to adjust audio playback by the wearable audio device. The audio playback may be adjusted at least partially based on an individualized HRTF generated by adjusting a generic HRTF according to the individualized parameters.
Various aspects include active noise reduction (ANR) headsets and methods of controlling such headsets. In some implementations, a headset includes: at least one electro¬ acoustic transducer; and at least one control circuit coupled with the at least one electro-acoustic transducer, the at least one control circuit configured to detect an acoustic disturbance in environmental sound, wherein the acoustic disturbance is characterized by a noise level in the environmental sound deviating from a noise threshold, and disable an audio pass-through mode while the acoustic disturbance is detected.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
A method for calibrating the axial alignment of orientation sensors, includes: receiving a first orientation signal representative of an orientation of a first earpiece of a pair of earphones, the first orientation signal being relative a first orientation axes of the first orientation sensor; receiving a second orientation signal representative of an orientation of a second earpiece of the pair of headphones, the second orientation signal being relative a second orientation axes of the second orientation sensor; calculating a mapping between the first orientation sensor axes and the second orientation sensor axes according to a difference between the first orientation signal and the second orientation signal; calibrating the first orientation axes according to a midpoint of the mapping; and calibrating the second orientation axes according to an inverse of the midpoint of the mapping
A method for personalized sound virtualization is provided. The method includes measuring environmental sound using a first microphone of a wearable audio device. The first microphone is in or proximate to a right ear of a user. The method further includes measuring the environmental sound using a second microphone of the wearable audio device. The second microphone is in or proximate to a left ear of the user. The method further includes using acoustic data obtained from the measuring of the environmental sound via the first and second microphones, calculating individualized parameters, such as interaural time delay, relating to individualized HRTFs for the user. The method further includes using the individualized parameters to adjust audio playback by the wearable audio device. The audio playback may be adjusted at least partially based on an individualized HRTF generated by adjusting a generic HRTF according to the individualized parameters.
An apparatus includes a noise reduction headphone comprising one or more microphones and an acoustic transducer, the one or more microphones configured to generate an input signal; and a controller comprising one or more processing devices, the controller configured to: process the input signal through one or more noise reduction filters to generate a noise-reduction signal, compare the input signal to an estimate of ambient noise to determine if the energy of the input signal is greater than the estimate of ambient noise, wherein if the energy of the input signal is greater than the estimate of ambient noise by a predetermined amount, a change in the noise reduction signal is suppressed; and generate an output signal, the output signal comprising, at least in part, the noise-reduction signal, wherein the acoustic transducer is configured to produce an acoustic output in accordance with the output signal.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
A wind noise reduction system including a beamformer, a comparator, and a voice mixer is provided. The beamformer may be an MVDR beamformer, and generates a beamformed signal based on a first microphone signal and a second microphone signal. The comparator generates a comparison signal based on the beamformed signal and a wind microphone signal. The comparison signal may be further based on a beamformed energy level of the beamformed signal and a wind energy level of the wind microphone signal. The voice mixer generates an output voice signal based on the beamformed signal, the wind microphone signal, and the comparison signal. The wind noise reduction system may further include a wind microphone corresponding to the wind microphone signal. The wind microphone may be arranged on a portion of a wearable audio device configured to be seated in a concha of a wearer.
G10L 21/0232 - Traitement dans le domaine fréquentiel
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
G10L 21/0216 - Filtration du bruit caractérisée par le procédé d’estimation du bruit
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
The technology described in this document can be embodied in a method that includes receiving an input signal representing audio captured by a microphone of an active noise reduction (ANR) headphone, processing, by one or more processing devices, a portion of the input signal to determine a noise level in the input signal, and determining that the noise level satisfies a threshold condition. The method also includes, in response to determining that the noise level satisfies the threshold condition, generating an output signal in which ANR processing on the input signal is controlled in accordance with a target loudness level of the output signal, and driving an acoustic transducer of the ANR headphone using the output signal.
G10L 21/0232 - Traitement dans le domaine fréquentiel
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
G10L 25/78 - Détection de la présence ou de l’absence de signaux de voix
G10L 25/84 - Détection de la présence ou de l’absence de signaux de voix pour différencier la parole du bruit
A wearable two-way communication audio device includes a first microphone that provides a first microphone signal, a second microphone that provides a second microphone signal, and a third microphone that provides a third microphone signal. The device also includes one or more processors that are configured to process the first microphone signal and the second microphone signal to form a first beamformed signal. The one or more processors compare energy in the first beamformed signal to energy in the first microphone signal, and, if energy in the first beamformed signal exceeds energy in the first microphone signal, then the one or more processors mix the first microphone signal and the third microphone signal to provide a mixed signal. The one or more processors may also generate a voice output signal for transmission to a far end recipient using the mixed signal.
A method for calibrating the axial alignment of orientation sensors, includes: receiving a first orientation signal representative of an orientation of a first earpiece of a pair of earphones, the first orientation signal being relative a first orientation axes of the first orientation sensor; receiving a second orientation signal representative of an orientation of a second earpiece of the pair of headphones, the second orientation signal being relative a second orientation axes of the second orientation sensor; calculating a mapping between the first orientation sensor axes and the second orientation sensor axes according to a difference between the first orientation signal and the second orientation signal; calibrating the first orientation axes according to a midpoint of the mapping; and calibrating the second orientation axes according to an inverse of the midpoint of the mapping
A wearable audio device, such as a hearing aid is provided. The wearable audio device includes a BTE microphone, a front-of-ear microphone, an adaptive filter, a subtractor circuit, and an acoustic transducer. The BTE microphone generates a BTE microphone signal. The BTE microphone may be arranged behind an ear of a user. The front-of-ear microphone generates a front-of-ear microphone signal. The front-of-ear microphone may be arranged within an ear canal or a concha of the ear of the user. The adaptive filter generates an adapted signal based on the BTE microphone signal and an error signal. The subtractor circuit generates the error signal based on the adapted signal and the front-of-ear microphone signal. The acoustic transducer generates audio based on the adapted signal. In some examples, the wearable audio device includes a plurality of BTE microphones configured as a directional microphone array.
An in-car wearable with reduced combing effects is achieved by band limiting the output of a high latency processing path, used to amplify a signal representative of the ambient noise, to frequencies where occlusion and does not occur, and providing those frequencies instead through a low latency processing path.
A wearable two-way communication audio device includes a first microphone that provides a first microphone signal, a second microphone that provides a second microphone signal, and a third microphone that provides a third microphone signal. The device also includes one or more processors that are configured to process the first microphone signal and the second microphone signal to form a first beamformed signal. The one or more processors compare energy in the first beamformed signal to energy in the first microphone signal, and, if energy in the first beamformed signal exceeds energy in the first microphone signal, then the one or more processors mix the first microphone signal and the third microphone signal to provide a mixed signal. The one or more processors may also generate a voice output signal for transmission to a far end recipient using the mixed signal.
G10L 21/0232 - Traitement dans le domaine fréquentiel
G10L 25/21 - Techniques d'analyse de la parole ou de la voix qui ne se limitent pas à un seul des groupes caractérisées par le type de paramètres extraits les paramètres extraits étant l’information sur la puissance
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04R 3/04 - Circuits pour transducteurs pour corriger la fréquence de réponse
A wearable two-way communication audio device includes a first microphone that provides a first microphone signal, a second microphone that provides a second microphone signal, and one or more processors. The one or more processors are configured to use the second microphone signal to estimate an ambient noise level and adjust an equalization filter based on the estimated ambient noise level. The first microphone signal and the second microphone signal may be processed via a first beamformer to provide a first beamformed signal and the first beamformed signal may be filtered with the equalization filter to provide a noise estimate signal. The one or more processors may also use the noise estimate signal to generate a voice output signal for transmission to a far end recipient.
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
A wearable two-way communication audio device includes a first microphone that provides a first microphone signal, a second microphone that provides a second microphone signal, and one or more processors. The one or more processors are configured to use the second microphone signal to estimate an ambient noise level and adjust an equalization filter based on the estimated ambient noise level. The first microphone signal and the second microphone signal may be processed via a first beamformer to provide a first beamformed signal and the first beamformed signal may be filtered with the equalization filter to provide a noise estimate signal. The one or more processors may also use the noise estimate signal to generate a voice output signal for transmission to a far end recipient.
Aspects of the present disclosure provide techniques, including devices and systems implementing the techniques, for audio signal processing in a device. In some aspects, the audio signal processing may involve providing source separation based speech enhancement in a device. One example technique for providing source separation based speech enhancement generally includes receiving, at the device, an input audio signal, extracting a speech component from the input audio signal, modifying the speech component to generate a modified speech component, and mixing the modified speech component with at least a portion of the input audio signal to generate a synchronized playback audio signal. Providing source separation based speech enhancement may allow for a user consuming the playback audio to be able to fully enjoy any speech component in the playback audio without excessive and undesirable interference from other portions of the playback audio (e.g., background noise or music) overpowering the speech component.
G10L 21/0364 - Amélioration de l'intelligibilité de la parole, p. ex. réduction de bruit ou annulation d'écho en changeant l’amplitude pour améliorer l'intelligibilité
G10L 25/30 - Techniques d'analyse de la parole ou de la voix qui ne se limitent pas à un seul des groupes caractérisées par la technique d’analyse utilisant des réseaux neuronaux
Various implementations include audio devices and methods for spatializing audio output based on content. Certain implementations include at least one audio output device for providing an audio output based on data, and at least one controller coupled with the at least one audio output device, the controller configured to, use the data to determine a content type for the audio output from a group of content types, automatically select a spatialization mode for the audio output from a plurality of spatialization modes based on the determined content type, and apply the selected spatialization mode to the audio output.
Aspects of the present disclosure provide techniques, including devices and systems implementing the techniques, for audio signal processing in a device. In some aspects, the audio signal processing may involve providing source separation based speech enhancement in a device. One example technique for providing source separation based speech enhancement generally includes receiving, at the device, an input audio signal, extracting a speech component from the input audio signal, modifying the speech component to generate a modified speech component, and mixing the modified speech component with at least a portion of the input audio signal to generate a synchronized playback audio signal. Providing source separation based speech enhancement may allow for a user consuming the playback audio to be able to fully enjoy any speech component in the playback audio without excessive and undesirable interference from other portions of the playback audio (e.g., background noise or music) overpowering the speech component.
G10L 21/0364 - Amélioration de l'intelligibilité de la parole, p. ex. réduction de bruit ou annulation d'écho en changeant l’amplitude pour améliorer l'intelligibilité
G10L 21/028 - Séparation du signal de voix utilisant les propriétés des sources sonores
Various implementations include audio devices and methods for spatializing audio output based on content. Certain implementations include at least one audio output device for providing an audio output based on data, and at least one controller coupled with the at least one audio output device, the controller configured to, use the data to determine a content type for the audio output from a group of content types, automatically select a spatialization mode for the audio output from a plurality of spatialization modes based on the determined content type, and apply the selected spatialization mode to the audio output.
Various implementations include a method of training a road noise cancelation (RNC) system for a vehicle, including: providing inputs to RNC system, the inputs obtained from: a set of ear-mounted microphones on a user, at least one transducer, an accelerometer, a set of cabin microphones in the vehicle, and a controller area network (CAN) bus, the inputs from the set of ear-mounted microphones on the user approximating a signal detected by the ears of the user; adapting a set of parameters in the RNC system defining an estimated signal detected at respective ears of the user based on the inputs; and generating at least one of the following for input during an operating mode of the RNC system: estimated ear microphone signals based on the adapted set of parameters, or a set of projection filters for use in determining an estimated ear signal at the respective ears of the user.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
Aspects of the present disclosure provide techniques, including devices and systems implementing the techniques, for managing multiple power sources using an accessory device. One example accessory device includes a first power supply node configured to receive power from an alternative power source, a second power supply node configured to be coupled to a universal serial bus (USB)-C plug of a primary power source, an output power supply node configured to be coupled to a USB-C receptacle, and a management circuit. The management circuit includes an input node coupled to a first control configuration (CC) input line and a second CC input line; a first output node coupled to a first CC output line; and a second output node coupled to a second CC output line. The management circuit is configured to maintain an impedance of the CC input lines and CC output lines within a range.
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
34.
LOCATION-BASED SYSTEMS AND METHODS FOR INITIATING WIRELESS DEVICE ACTION
Systems, devices, and methods for initiating an action based on location of a first device are provided. The first device, such as an earbud, includes a Bluetooth receiver. The Bluetooth receiver is configured to receive a wave signal transmitted by a second device, such as a smartphone. The first device further includes a processor. The processor is configured to calculate a location of the first device relative to the second device based on the wave signal. The processor is further configured to determine a zone status of the first device based on the location of the first device relative to the second device and a predetermined zone. The processor is further configured to initiate the action based on the zone status.
H04W 4/021 - Services concernant des domaines particuliers, p. ex. services de points d’intérêt, services sur place ou géorepères
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
In one aspect a method that includes receiving an input signal captured by one or more first sensors associated with an active noise reduction (ANR) device, and processing the input signal using a first filter disposed in an ANR signal path to generate a first signal for an acoustic transducer of the ANR device. The input signal is processed in a pass-through signal path disposed in parallel with the ANR signal path to generate a second signal for the acoustic transducer, wherein the pass-through signal path allows a portion of the input signal to pass through to the acoustic transducer in accordance with a variable gain. One or more second sensors detect an existence of a condition likely to cause instability in the pass-through signal path, and in response, the variable gain is adjusted. A driver signal for the acoustic transducer is generated using an output based on the adjusted gain.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
G10K 11/175 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son
36.
Wearable Audio Device with Feedback Instability Control
Aspects include approaches for feedback instability control in wearable audio devices. In certain cases, a method of controlling feedback instability in a wearable audio device with an active noise reduction (ANR) system includes: determining a current feedback instability by combining outputs from multiple instability detectors, applying latch logic to the current feedback instability to determine a current mitigation value, and adjusting a driver command signal based on the current mitigation value to mitigate feedback instability.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
Aspects include approaches for feedback instability control in wearable audio devices. In certain cases, a method of controlling feedback instability in a wearable audio device with an active noise reduction (ANR) system includes: determining a current feedback instability by combining outputs from multiple instability detectors, applying latch logic to the current feedback instability to determine a current mitigation value, and adjusting a driver command signal based on the current mitigation value to mitigate feedback instability.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
H04R 3/02 - Circuits pour transducteurs pour empêcher la réaction acoustique
Systems and methods are presented to allow coordination between media end devices such that a user interface on a first end device may be used to manage audio calls, media playback, or the like, on a second end device. The first end device establishes a first communications channel to a source device and a second communications channel to a second end device. The second end device may also have a communications channel to the source device. The first end device communicates with the second end device on the second communications channel to exchange command and control information to influence operation between the second end device and the source device. The source device, however, is unaware of the second communications channel between the first and second end devices.
Aspects of the present disclosure provide techniques, including devices and systems implementing the techniques, for detecting a current state of a wearable audio device of a user. One example technique for detecting the current state of the wearable device generally includes transmitting, with a driver, at least one pulsed signal associated with the current state, receiving, at a microphone, a received signal of the at least one pulsed signal, determining an acoustic signal associated with the current state based on the received signal, determining a difference between the acoustic signal associated with the current state and a prior acoustic signal associated with a known state, and determining the current state of the wearable audio device based, at least in part, on a comparison of the difference to a threshold. In some aspects, the at least one pulsed signal comprises at least one pulsed ultrasonic wavelet.
Aspects of the present disclosure provide techniques, including devices and systems implementing the techniques, for detecting a current state of a wearable audio device of a user. One example technique for detecting the current state of the wearable device generally includes transmitting, with a driver, at least one pulsed signal associated with the current state, receiving, at a microphone, a received signal of the at least one pulsed signal, determining an acoustic signal associated with the current state based on the received signal, determining a difference between the acoustic signal associated with the current state and a prior acoustic signal associated with a known state, and determining the current state of the wearable audio device based, at least in part, on a comparison of the difference to a threshold. In some aspects, the at least one pulsed signal comprises at least one pulsed ultrasonic wavelet.
Various implementations include an open-ear headphone, including: an acoustic module including a distal sound-delivery end; a battery housing; and a flexible arm physically and electrically connecting the acoustic module to the battery housing, wherein the flexible arm defines an original resting length and position between the acoustic module and the battery housing, wherein the flexible arm is configured to retain the open-ear headphone on an ear of a user such that the distal sound-delivery end is located in the concha of the ear and the battery housing is located behind the ear, and wherein the flexible arm is configured to be flexed at least along a length thereof such that a space between the acoustic module and the battery housing can be adjusted.
A method performed by a wearable audio output device worn by a user is provided for controlling external noise attenuated by wearable audio output device. A speech is detected from a user wearing the wearable audio output device, wherein the audio output device has active noise reduction turned on. It is determined, based on the detecting, that the user desires to speak to a subject in the vicinity of the user. In response to the determining, a level of noise reduction is reduced to enable the user to hear sounds external to the audio output device. It is determined that the user desires to speak to the subject by detecting at least one condition of a plurality of conditions.
Various implementations include a computational architecture for a personal active noise reduction (ANR) device. The device includes a communication interface that receives an audio stream, a driver, a microphone system and an ANR processing platform. The platform includes a first DSP configured to perform ANR on the audio stream according to a set of parameters in the first DSP. The platform includes a second DSP processor configured to detect at least one of a sound pressure level (SPL) or a performance characteristic, and includes a general purpose (GP) processor operationally coupled to the first DSP processor and the second DSP processor and configured to achieve a desired user experience in response to at least one of the SPL or the performance characteristic detected by the second DSP deviating from a corresponding threshold or rule.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
Aspects of the present disclosure provide techniques, including devices and systems implementing the techniques, to manage ambient noise in a wearable audio output device to facilitate increased awareness for a user of the wearable audio output device. One example technique for managing ambient noise generally includes determining a first event, ducking an audio level of the wearable audio output device from a first level to a second level based on the determination, monitoring for a second event, and ducking the audio level of the wearable audio output device to a third level based on the monitoring, wherein the second level is different than the third level. Such techniques may help to more accurately determine the occurrence of events that are important to the user and manage the wearable audio output device to facilitate user awareness, as well as mitigate the undesirable consequences of events that are unimportant to the user.
H03G 3/32 - Commande automatique dans des amplificateurs comportant des dispositifs semi-conducteurs le réglage dépendant du niveau de bruit ambiant ou du niveau sonore ambiant
46.
Managing Characteristics of Active Noise Reduction
A first input signal captured by one or more sensors associated with an ANR headphone is received. A frequency domain representation of the first input signal is computed for a set of discrete frequencies, based on which a set of parameters is generated for a digital filter disposed in an ANR signal flow path of the ANR headphone, the set of parameters being such that a loop gain of the ANR signal flow path substantially matches a target loop gain. Generating the set of parameters comprises: adjusting a response of the digital filter at frequencies (e.g., spanning between 200 Hz-5 kHz). A response of at least 3 second order sections of the digital filter is adjusted. A second input signal in the ANR signal flow path is processed using the generated set of parameters to generate an output signal for driving the electroacoustic transducer of the ANR headphone.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
Aspects of the present disclosure provide techniques, including devices and systems implementing the techniques, to manage ambient noise in a wearable audio output device to facilitate increased awareness for a user of the wearable audio output device. One example technique for managing ambient noise generally includes determining a first event, ducking an audio level of the wearable audio output device from a first level to a second level based on the determination, monitoring for a second event, and ducking the audio level of the wearable audio output device to a third level based on the monitoring, wherein the second level is different than the third level. Such techniques may help to more accurately determine the occurrence of events that are important to the user and manage the wearable audio output device to facilitate user awareness, as well as mitigate the undesirable consequences of events that are unimportant to the user.
G10K 11/175 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son
G10L 25/78 - Détection de la présence ou de l’absence de signaux de voix
In particular cases, a soundbar includes: a housing; and a plurality of acoustic radiators carried by the housing and configured to output sound that includes a height component, at least one of the acoustic radiators including a dipole acoustic radiator configured to i) output the height component and ii) emit sound in opposite directions along a main radiation axis, wherein a sound pressure level along the main radiation axis is greater than a sound pressure level along a null axis orthogonal to the main radiation axis, such that the height component is reproduced by more sound pressure radiated along the main radiation axis compared to sound pressure radiated along the null axis, and wherein the sound pressure level along the main radiation axis is 5 decibels (dB) or more greater than the sound pressure level along the null axis for at least some frequencies.
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
H04R 3/12 - Circuits pour transducteurs pour distribuer des signaux à plusieurs haut-parleurs
Various implementations include vehicle headrest configurations and related audio systems. In some cases, a headrest includes: a main body having a front surface to support a back of a user's head and a pair of acoustic channels each formed in part by a side wall having a front edge that is offset from the front surface, the main body having a portion configured to receive first and second transducers, where the pair of acoustic channels are arranged symmetrically about a centerline axis of the main body, where a transducer mount in each of the pair of acoustic channels for mounting respective ones of the first and second transducers, where a dimension (Dimension C) is defined by a rotation angle of the transducer mount relative to a centerline of the vehicle headrest, wherein Dimension C is approximately −20 degrees to approximately zero degrees.
B60N 2/879 - Appuis-tête avec des caractéristiques supplémentaires ne se rapportant pas au positionnement de l’appui-tête, p. ex. des dispositifs de chauffage ou de refroidissement ou des haut-parleurs
B60N 2/01 - Agencement des sièges les uns par rapport aux autres
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/26 - Dispositions dans l'espace de transducteurs séparés sensibles à plusieurs bandes de fréquences
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
H04R 5/02 - Dispositions spatiales ou structurelles de haut-parleurs
51.
SYSTEMS AND METHODS FOR SYNCHRONIZING TRANSMISSION OF WIRELESS DATA
An audio system, method, and computer program product for synchronizing device clocks. The systems, methods and computer program product can establish a first isochronous data stream between a peripheral device and a first device and establish a second isochronous data stream between the first device and a second device to send data between the first and second device. As the two data streams may rely on two different device clocks, e.g., one clock which defines the timing for the first isochronous data stream and a second clock which defines the timing for the second isochronous data stream, the systems, methods, and computer program disclosed herein are configured to maintain synchronization and/or synchronize the first clock with the second clock to prevent data loss due to clock drift.
H04R 5/033 - Casques pour communication stéréophonique
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
A retaining piece includes a retainer portion, a cantilevered portion, and a locking feature. The retainer portion comprises a tubular wall portion. The tubular portion extends around a central axis that extends through the center of the retaining piece. The cantilevered portion extends from the retainer portion radially outwards. The locking feature includes a first alignment feature arranged along the tubular wall portion in direction substantially parallel to the central axis.
An audio system, method, and computer readable medium that controls an audio system having a visual display and an input sensor for accepting user selections is provided. The visual display visually presents a primary panel, a first sub-panel, and a second sub-panel. The primary panel occupies a larger area of the visual display than do each of the first sub-panel and the second sub-panel. In various examples, audio and/or telephone configuration settings are displayed depending upon context.
B60K 35/28 - Dispositions de sortie, c.-à-d. du véhicule à l'utilisateur, associées aux fonctions du véhicule ou spécialement adaptées à celles-ci caractérisées par le type d’informations de sortie, p. ex. divertissement vidéo ou informations sur la dynamique du véhiculeDispositions de sortie, c.-à-d. du véhicule à l'utilisateur, associées aux fonctions du véhicule ou spécialement adaptées à celles-ci caractérisées par la finalité des informations de sortie, p. ex. pour attirer l'attention du conducteur
A retaining piece includes a retainer portion, a tubular wall portion, and a cantilevered portion. The tubular portion extends around a central axis that extends through the center of the retaining piece. The retaining piece also includes a locking feature that includes a first alignment feature arranged along the tubular wall portion in direction substantially parallel to the central axis.
Various implementations include portable speakers and methods configured to adjust audio input signals. In one example, a portable speaker includes: at least one electro-acoustic transducer for providing an acoustic output; an audio input for receiving one or more audio input signals; an audio output for providing one or more audio output signals; a communication module for providing a network communication link; and a processor configured to receive the audio input signals and to process the audio input signals to provide the audio output signals, wherein the processor is configured, from a common set of audio input signals, to provide, a first set of audio output signals to the electro-acoustic transducer, such that the first set of audio output signals act as a monitor of the one or more audio input signals, and a second set of audio output signals via the network communication link.
Aspects describe an in-ear audio output device for ESD mitigation. The device includes an earbud housing, a nozzle having one or more apertures to conduct sound waves to the ear canal of the wearer, a flexible printed circuit board positioned within the earbud housing and the nozzle, the flexible printed circuit board comprising: a first portion, a second portion comprising a first edge of the flexible printed circuit board proximate the one or more apertures, and a metal layer on a top surface of the second portion, a microphone attached to a bottom surface of the flexible printed circuit board, and a metal casing attached to the bottom surface of the flexible printed circuit board and surrounding the microphone, the metal casing comprising a second edge proximate the one or more apertures, wherein the second edge is a greater distance from the one or more apertures than the first edge.
Various implementations include portable speakers and methods configured to adjust audio input signals. In one example, a portable speaker includes: at least one electro-acoustic transducer for providing an acoustic output; an audio input for receiving one or more audio input signals; an audio output for providing one or more audio output signals; a communication module for providing a network communication link; and a processor configured to receive the audio input signals and to process the audio input signals to provide the audio output signals, wherein the processor is configured, from a common set of audio input signals, to provide, a first set of audio output signals to the electro-acoustic transducer, such that the first set of audio output signals act as a monitor of the one or more audio input signals, and a second set of audio output signals via the network communication link.
Various implementations include portable loudspeakers. Certain implementations include a portable loudspeaker that mitigates ingress of moisture, particulates, and other contaminates. In particular implementations, the portable loudspeaker includes a housing with an enclosure having a co-molded construction for ingress resistance. In certain implementations, the portable loudspeaker has a single printed circuit board (PCB) within its rear enclosure for controlling operation of an electro-acoustic transducer and interface buttons.
H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 3/12 - Circuits pour transducteurs pour distribuer des signaux à plusieurs haut-parleurs
A method is performed by active noise reduction (ANR) headphones. The method includes comparing a feedback microphone signal to a predicted feedback microphone signal representing what the feedback microphone signal would be expected to look like if there were no leak between the headphones and a user wearing the headphones. An audio limiter is adaptively adjusted based, at least in part, on the comparison.
Certain aspects provide methods and apparatus for recovering audio quality of voice when processing signals associated with a wearable audio output device. A method that may be performed includes receiving. by an in-ear microphone acoustically coupled to an environment inside an car canal of a user, an audio signal having a first frequency band. predicting high-frequency band information for the audio signal using a model trained using training data of known high-frequency bands associated with low-frequency bands. generating an output signal having a second frequency band based. at least in part. on the first frequency band of the audio signal and the predicted high-frequency band information for the audio signal, and outputting. by the wearable audio output device. the output signal having the second frequency band.
G10L 21/0232 - Traitement dans le domaine fréquentiel
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
G10L 25/21 - Techniques d'analyse de la parole ou de la voix qui ne se limitent pas à un seul des groupes caractérisées par le type de paramètres extraits les paramètres extraits étant l’information sur la puissance
G10L 25/30 - Techniques d'analyse de la parole ou de la voix qui ne se limitent pas à un seul des groupes caractérisées par la technique d’analyse utilisant des réseaux neuronaux
An audio system and method for retransmission of data packets between audio devices. The audio system includes a source device, a first audio device and a second audio device configured to receive an isochronous data stream from the source device. Each audio device is configured to eavesdrop or otherwise monitor the packets within the isochronous data stream meant for each of the audio devices and each audio device can retransmit packets from one audio device to the other in the event one audio device fails to receive a packet. The audio system is configured to operate in at least a partial retransmission mode or a total retransmission mode where the partial retransmission mode allows each audio device to selectably retransmit packets between audio devices and where the total retransmission mode requires one audio device to retransmit all packets to the other audio device.
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
An audio system, device, and method for broadcasting, discovering, and receiving wireless audio data connections. The exemplary systems and methods described herein utilize an Isochronous Broadcast Stream topology to unilaterally broadcast a plurality of wireless audio data streams. The audio devices described are configured to discover and receive the plurality of wireless audio data streams and allow the user to organize these streams into a determined order and cycle through each stream based on user input.
H04H 20/61 - Dispositions spécialement adaptées à des applications spécifiques, p. ex. aux informations sur le trafic ou aux récepteurs mobiles à la radiodiffusion locale, p. ex. la radiodiffusion en interne
H04H 40/18 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
H04W 40/12 - Sélection d'itinéraire ou de voie de communication, p. ex. routage basé sur l'énergie disponible ou le chemin le plus court sur la base de la qualité d'émission ou de la qualité des canaux
A method is performed by active noise reduction (ANR) headphones. The method includes comparing a feedback microphone signal to a predicted feedback microphone signal representing what the feedback microphone signal would be expected to look like if there were no leak between the headphones and a user wearing the headphones. An audio limiter is adaptively adjusted based, at least in part, on the comparison.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
A sound-producing device includes a housing having a front and a top, a first electro-acoustic transducer facing from the front of the housing, a second electro-acoustic transducer facing from the top of the housing, and a third electro-acoustic transducer facing from the top of the housing. There is at least one processor that is configured to, during audio playback, generate a first array using the first and second electro-acoustic transducers, the first array providing a left height component of the audio playback, and generate a second array using the first and third electro-acoustic transducers, the second array providing a right height component of the audio playback.
H04R 1/40 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en combinant plusieurs transducteurs identiques
H04S 7/00 - Dispositions pour l'indicationDispositions pour la commande, p. ex. pour la commande de l'équilibrage
An ear tip includes a body configured to be mounted onto an earbud. The body includes a first end, a second end opposite the first end, and a first wall extending between the first and second ends. The first wall defines and surrounds a hollow passage that is configured to conduct sound waves. The first wall is configured to engage a nozzle on the earbud. The first wall includes a ring that is formed of a rigid material and engages the nozzle. The ring includes at least one C-shaped member with at least one gap and a compliant material is molded around the ring and fills the gap.
A wearable audio device includes a light angle sensor that is configured to measure respective angles of incidence of a pair of light beams emitted by respective light beacons associated with a source device. The wearable audio device is configured to use the measured angles of incidence for spatial audio rendering.
G01S 5/16 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant des ondes électromagnétiques autres que les ondes radio
Processes, methods, systems, and devices are disclosed for pairing a target device with a source device and pairing the target device with a partner device. A user may choose between using the target device and the partner device without actively connecting the partner device to the source device. The target device and the partner device may each be a specialized device providing certain functions. For example, the source device may be a computing device, such as a smart phone or a tablet computer. The target device may be a sound bar dedicated for playing high definition surround sound that outperforms internal speakers of the source device. And the partner device may be a noise-canceling headset. The user may want to seamlessly switch between playing sounds on the sound bard and the headset from time to time under different circumstances, without needing to manually pair the headset to the computing device.
H04W 76/14 - Établissement de la connexion en mode direct
H04W 4/029 - Services de gestion ou de suivi basés sur la localisation
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
H04W 8/00 - Gestion de données relatives au réseau
H04W 76/15 - Établissement de connexions à liens multiples sans fil
78.
BROAD SPECTRUM INSTABILITY DETECTION AND MITIGATION
A method performed by an audio output device is provided for detecting instabilities and taking mitigating actions. Specifically, an A-weighted dBA level of a raw feedback signal exceeding a threshold level trigger, at least, muting the driver. The described methods apply to detecting instabilities across a broad frequency spectrum.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
Various aspects include wearable devices with electrostatic discharge (ESD) mitigating features. In some examples, a control module is configured to connect to a wearable device, the control module including: a housing having at least one electrostatic discharge (ESD) ingress location, an electronic component in the housing, and a shield plate contained in the housing and connected to ground, the shield plate providing ESD protection for the electronic component.
Various aspects include wearable devices with electrostatic discharge (BSD) mitigating features. In some examples, a control module is configured to connect to a wearable device, the control module including: a housing having at least one electrostatic discharge (BSD) ingress location, an electronic component in the housing, and a shield plate contained in the housing and connected to ground, the shield plate providing BSD protection for the electronic component.
An approach includes controlling an active noise reduction (ANR) headphone by: receiving an input from a first sensor at an earphone, identifying the input from the first sensor as a body-conducted sound from a user of the earphone, and adjusting at least one setting on the earphone in response to identifying the input as a body-conducted sound.
Various aspects include audio amplifiers for driving at least one speaker. In some cases, the amplifier includes: a controller for amplifying at least one input signal to provide an amplified audio output signal, the controller configured to operate the amplifier in at least two modes, including: a first mode including a dedicated connection to the at least one speaker; and a second mode including a direct physical connection with an additional audio amplifier and the dedicated connection to the at least one speaker; and an interface switch coupled with the controller that enables a change between the first mode and the second mode, wherein the controller maintains the selection of the first mode or the second mode until a command is received via the interface switch.
H04R 1/28 - Supports de transducteurs ou enceintes conçus pour réponse de fréquence spécifiqueEnceintes de transducteurs modifiées au moyen d'impédances mécaniques ou acoustiques, p. ex. résonateur, moyen d'amortissement
H04R 3/12 - Circuits pour transducteurs pour distribuer des signaux à plusieurs haut-parleurs
85.
POWER-ADAPTIVE ACTIVE NOISE REDUCTION (ANR) HEADSET
Various aspects include active noise reduction (ANR) headsets and methods of controlling such headsets. In some implementations, a headset includes: at least one electro¬ acoustic transducer; a power source for powering the at least one electro-acoustic transducer; and a control circuit configured to apply active noise reduction (ANR) to environmental sound using the at least one electro-acoustic transducer, sample voltage drops across the power source, and adjust a compressor threshold for the ANR based on the sampled voltage drops across the power source.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
H03G 7/00 - Compression ou expansion de volume dans les amplificateurs
Aspects describe a raised feature to help a user remove an in-ear audio output device from a case. Aspects describe a device comprising an earbud housing shaped to fit in a concha of an ear of a wearer of the device, and a body coupled to the earbud housing, the body extending away from an ear canal of the wearer and oriented outside of the ear when the device is worn, the body comprising a top cap comprising a flat external portion and a raised feature proximate to a concha cymba of the wearer and external to the ear when the device is worn.
Various implementations include portable speakers configured to adjust audio output based on detected input connections. In certain cases, a portable speaker includes: an enclosure having: at least one electro-acoustic transducer for providing an audio output, a processor coupled with the at least one transducer; and an audio input module coupled with the processor for receiving audio input signals; a set of input channels each for receiving a hard-wired audio input connection at the enclosure; a set of wireless input channels for receiving audio input from a source device; and a set of docks for housing two or more wireless transmitters configured to provide the audio input via the set of wireless input channels.
Aspects of the present disclosure provide techniques, including devices and system implementing the techniques, to dynamically adjust an audio limiter in an ANR audio output device. The audio limiter adaptively adjusts how much and when to limit incoming audio based on a determined state of the device relative to a user wearing the device. The state of the device is determined based on the quality of the seal or fit between the earcup and the user's ear or head. When the fit is poor or leaky, the audio limiter limits the lower frequency portions of the incoming audio signal in an effort to mitigate distortion. Advantageously, when the fit is good, the audio limiter does not limit or reduce the amount of limiting of the low frequency portion of the audio signal.
Various aspects include active noise reduction (ANR) headsets and methods of controlling such headsets. In some implementations, a headset includes: at least one electro-acoustic transducer; a power source for powering the at least one electro-acoustic transducer; and a control circuit configured to apply active noise reduction (ANR) to environmental sound using the at least one electro-acoustic transducer, sample voltage drops across the power source, and adjust a compressor threshold for the ANR based on the sampled voltage drops across the power source.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
Aspects of the present disclosure provide techniques, including devices and system implementing the techniques, to dynamically adjust an audio limiter in an AMR audio output device. The audio limiter adaptively adjusts how much and when to limit incoming audio based on a determined state of the device relative to a user wearing the device. The state of the device is determined based on the quality of the seal or fit between the earcup and the user's ear or head. When the fit is poor or leaky, the audio limiter limits the lower frequency portions of the incoming audio signal in an effort to mitigate distortion. Advantageously, when the fit is good, the audio limiter does not limit or reduce the amount of limiting of the low frequency portion of the audio signal.
A device and method for providing spatialized audio with dynamic head tracking that includes, in a static phase, providing a spatialized acoustic signal to a user that is perceived as originating from a virtual soundstage at a first location, and, upon determining one or more predetermined conditions are satisfied, which can include whether the users head has exceeded an angular bound, rotating the virtual soundstage to track the movement of the user's head.
Headphone audio controllers are disclosed. In one implementation, a headphone includes: an acoustic transducer that is configured to develop sound for delivery to an ear of a user; a microphone that is configured to sense sound from the acoustic transducer and develop an output; and a processor, responsive to the microphone output, and that is configured to: determine first and second audio transfer functions between the acoustic transducer and the microphone, and calculate an audio controller based on both the first audio transfer function and the second audio transfer function.
G10K 11/178 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son par régénération électro-acoustique en opposition de phase des ondes acoustiques originales
93.
ROBUST RETRANSMISSION TOPOLOGIES USING ERROR CORRECTION
Methods and systems for improving the robustness of wireless communications. The methods and systems provided transmit data packets over one or more isochronous stream and transmit one or more supplemental data packets over the same time intervals. The one or more supplemental data packets are used to recreate and/or enhance at least a portion of one or more data packets of the plurality of data packets that have already been sent. Alternatively, the one or more supplemental data packets are used to create and/or enhance at least a portion of one or more data packets of the plurality of data packets that will be received during the next isochronous intervals. The methods and system described herein allow for increased robustness by allowing for better retransmission with correctly received packets.
An open audio device includes an acoustic module and a body that supports the acoustic module. The acoustic module is configured to be located at least in part on the outer ear and defines a first sound-emitting opening that is configured to be proximate but spaced from the user's ear canal. The body includes a housing and a bridge that couples the acoustic module to the housing. The housing is configured to be located behind an outer ear of a user and contains a rechargeable battery. Wiring runs from the rechargeable battery to the acoustic module.
A device and method for providing spatialized audio with dynamic head tracking that includes, in a static phase, providing a spatialized acoustic signal to a user that is perceived as originating from a virtual soundstage at a first location, and, upon determining one or more predetermined conditions are satisfied, which can include whether the users head has exceeded an angular bound, rotating the virtual soundstage to track the movement of the user's head.
Processes and devices for equalizing an audio system that is adapted to use a loudspeaker to transduce test audio signals into test sounds. The processes and devices can involve the use of infrared signals to convey information in one or both directions between the audio system and a portable computer device that captures test sounds, calculates audio parameters that can be used in the equalization process, and transmits these audio parameters back to the audio system for its use in equalizing audio signals that are played by the audio system.
H04M 1/737 - Téléphones sans fil caractérisés par une transmission d'ondes électromagnétiques autres que des ondes hertziennes, p. ex. d'ondes infrarouges
H04R 29/00 - Dispositifs de contrôleDispositifs de tests
H04S 7/00 - Dispositions pour l'indicationDispositions pour la commande, p. ex. pour la commande de l'équilibrage
Various implementations include miniature loudspeaker drivers. In some aspects, an electro-acoustic driver includes: a diaphragm having a surface area configured to radiate acoustic energy; a suspension coupled to the diaphragm, wherein the suspension is non-planar in a resting position; and a support structure coupled to the suspension and having an outer linear dimension in a plane of the support structure of approximately 6.0 millimeters (mm) or less, wherein the surface area of the diaphragm is at least 49% of an overall cross-sectional area of the electro-acoustic driver in the plane of the support structure; and wherein the suspension between an inner side wall of the support structure and the diaphragm has a rounded shape in the resting position.
H04R 7/20 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie pour fixer une membrane ou un cône élastiquement à un support au moyen d'un matériau flexible, ressorts, fils ou cordes
A headphone includes a housing that contains an electro-acoustic transducer, an antenna for wireless communication, and printed circuit board (PCB) with electronics for driving the electro-acoustic transducer. The PCB includes an earth plane electrically that is coupled to the antenna. A transceiver provides for wireless communication via the antenna, e.g., to a mobile phone or similar. The headphone also includes an earth plane extension formed on portion of housing.
A method is provided for adapting an anchor position for relative locations of one or more virtual loudspeakers. The method includes: detecting a cornering motion of a user, and adapting the anchor position based on the detected cornering motion such that the anchor position remains centered in front of the user through the cornering motion.
