Abstract

A resonance tuner receives and digitizes an analog signal in response to a resonance of a structure thereby creating a plurality of time samples. A series of the time samples are buffered upon burst detection. A power spectrum is estimated by computing a Time-To-Frequency-Transform of the series of time samples and a magnitude of each of the resulting frequency samples is squared. At least one subset associated with at least one spectral peak is selected from the frequency samples. Each spectral peak has at least one sample with a sufficient magnitude and being spectrally adjacent to any other sample in another spectral peak by less than a threshold. A fundamental spectral peak is determined in a fundamental subset including a spectral peak with a sample at the lowest frequency greater than zero. The fundamental spectral peak has the sample with the largest magnitude within the fundamental subset.

IPC Classes  ?

• G10H 7/02 - Instruments in which the tones are synthesised from a data store, e.g. computer organs in which amplitudes at successive sample points of a tone waveform are stored in one or more memories
• G10G 7/02 - Tuning forks or like devices
• G10H 1/44 - Tuning means
• G01H 13/00 - Measuring resonant frequency
• G10D 13/00 - Percussion musical instrumentsDetails or accessories therefor

Abstract

A processor of a tuning apparatus receives a desired fundamental frequency or note and determines a frequency or note of at least one drumhead of a drum in response to the received desired fundamental frequency or note. An output at the processor outputs a value corresponding to the determined frequency or note of the drumhead.

IPC Classes  ?

• G10G 7/02 - Tuning forks or like devices

Abstract

A resonance tuner receives and digitizes an analog signal in response to a resonance of a structure thereby creating a plurality of time samples. A series of the time samples are buffered upon burst detection. A power spectrum is estimated by computing a Time-To-Frequency-Transform of the series of time samples and a magnitude of each of the resulting frequency samples is squared. At least one subset associated with at least one spectral peak is selected from the frequency samples. Each spectral peak has at least one sample with a sufficient magnitude and being spectrally adjacent to any other sample in another spectral peak by less than a threshold. A fundamental spectral peak is determined in a fundamental subset including a spectral peak with a sample at the lowest frequency greater than zero. The fundamental spectral peak has the sample with the largest magnitude within the fundamental subset.

IPC Classes  ?

• G10H 1/44 - Tuning means
• G01H 13/00 - Measuring resonant frequency
• G10D 13/00 - Percussion musical instrumentsDetails or accessories therefor
• G10G 7/02 - Tuning forks or like devices

Abstract

Provided are a percussion instrument tuning system and method. A position sensor determines at least one first position of a tuning mechanism of a timpano. A control unit generates a calibration result by measuring a first pitch of the timpano corresponding to the at least one first position of the tuning mechanism and estimates a second pitch of the timpano corresponding to at least one second position of the tuning mechanism from the calibration result.

IPC Classes  ?

• G10H 1/44 - Tuning means
• G10G 7/02 - Tuning forks or like devices
• G10D 13/04 - Timpani

Abstract

Provided are systems and methods for resonance tuning. A signal is received in response to a resonance of a structure. A frequency or musical note related to an overtone is determined from the signal. The frequency or musical note related to the overtone is selected as a filter mode reference frequency or musical note. A display of frequencies or musical notes from a subsequent signal that deviate from the filter mode reference frequency or musical note by a predetermined threshold is suppressed.

IPC Classes  ?

• G10G 7/02 - Tuning forks or like devices
• G01H 13/00 - Measuring resonant frequency

Abstract

Provided are systems and methods for resonance tuning. A signal is received in response to a resonance of a structure. A frequency or musical note related to an overtone is determined from the signal. The frequency or musical note related to the overtone is selected as a filter mode reference frequency or musical note. A display of frequencies or musical notes from a subsequent signal that deviate from the filter mode reference frequency or musical note by a predetermined threshold is suppressed.

IPC Classes  ?

• G10D 13/02 - DrumsTambourines with drumheads
• G10G 7/00 - Other auxiliary devices or accessories, e.g. conductors' batons or separate holders for resin or strings

Abstract

Provided are systems and methods for resonance tuning. A signal is received in response to a resonance of a structure. A frequency or musical note related to an overtone is determined from the signal. The frequency or musical note related to the overtone is selected as a filter mode reference frequency or musical note. A display of frequencies or musical notes from a subsequent signal that deviate from the filter mode reference frequency or musical note by a predetermined threshold is suppressed.

IPC Classes  ?

• G10H 7/00 - Instruments in which the tones are synthesised from a data store, e.g. computer organs

Abstract

A resonance tuner receives and digitizes an analog signal in response to a resonance of a structure thereby creating a plurality of time samples. A series of the time samples are buffered upon burst detection. A power spectrum is estimated by computing a Time-To-Frequency-Transform of the series of time samples and a magnitude of each of the resulting frequency samples is squared. At least one subset associated with at least one spectral peak is selected from the frequency samples. Each spectral peak has at least one sample with a sufficient magnitude and being spectrally adjacent to any other sample in another spectral peak by less than a threshold. A fundamental spectral peak is determined in a fundamental subset including a spectral peak with a sample at the lowest frequency greater than zero. The fundamental spectral peak has the sample with the largest magnitude within the fundamental subset.

IPC Classes  ?

• G10H 1/44 - Tuning means
• G10H 1/06 - Circuits for establishing the harmonic content of tones