# US 11,308,928 B2 · Systems and methods for capturing and interpreting audio > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,308,928 B2 - Document ID: US11308928B2 - Status: Granted - Kind: B2 - Application number: 16/704,258 - Filed: 2019-12-05 - Published: 2020-04-09 - Granted: 2022-04-19 - Earliest claimed: 2014-09-25 - Assignees: Sunhouse Technologies, Inc. - Applicants: Sunhouse Technologies, Inc. - Inventors: Tlacaelel Miguel Esparza - Web page: https://patentgrep.com/patent/US11308928B2 ## CPC - G10H 3/146: {using a membrane, e.g. a drum; Pick-up means for vibrating surfaces, e.g. housing of an instrument} - G01H 1/00: Measuring {characteristics of} vibrations in solids by using direct conduction to the detector (G01H9/00, G01H11/00 take precedence) - G01H 11/00: Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties - G01H 11/02: by magnetic means, e.g. reluctance - G01H 11/08: using piezoelectric devices - G10D 13/02: Drums; Tambourines with drumheads - G10D 13/26: {Mechanical details of electronic drums} - G10H 1/14: during execution {(voice controlled instruments G10H5/005)} - G10H 3/12: using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument - G10H 3/143: {characterised by the use of a piezoelectric or magneto-strictive transducer} - G10H 7/008: {Means for controlling the transition from one tone waveform to another} - G10D 13/01: General design of percussion musical instruments - G10D 13/063: Cymbals - G10H 1/0553: {using optical or light-responsive means} - G10H 1/0555: {using magnetic or electromagnetic means} - G10H 1/0556: {using piezoelectric means} - G10H 2210/041: based on mfcc [mel -frequency spectral coefficients] - G10H 2210/051: for extraction or detection of onsets of musical sounds or notes, i.e. note attack timings - G10H 2210/281: Reverberation or echo - G10H 2220/091: Graphical user interface [GUI] specifically adapted for electrophonic musical instruments, e.g. interactive musical displays, musical instrument icons or menus; Details of user interactions therewith - G10H 2220/106: using icons, e.g. selecting, moving or linking icons, on-screen symbols, screen regions or segments representing musical elements or parameters - G10H 2220/411: Light beams - G10H 2220/455: Camera input, e.g. analyzing pictures from a video camera and using the analysis results as control data - G10H 2220/525: Piezoelectric transducers for vibration sensing or vibration excitation in the audio range; Piezoelectric strain sensing, e.g. as key velocity sensor; Piezoelectric actuators, e.g. key actuation in response to a control voltage - G10H 2230/275: Spint drum - G10H 2230/281: Spint drum assembly, i.e. mimicking two or more drums or drumpads assembled on a common structure, e.g. drum kit - G10H 2250/235: Fourier transform; Discrete Fourier Transform [DFT]; Fast Fourier Transform [FFT] - G10H 2250/311: Neural networks for electrophonic musical instruments or musical processing, e.g. for musical recognition or control, automatic composition or improvisation - G10H 2250/435: Gensound percussion, i.e. generating or synthesising the sound of a percussion instrument; Control of specific aspects of percussion sounds, e.g. harmonics, under the influence of hitting force, hitting position, settings or striking instruments such as mallet, drumstick, brush or hand - G10H 2250/641: Waveform sampler, i.e. music samplers; Sampled music loop processing, wherein a loop is a sample of a performance that has been edited to repeat seamlessly without clicks or artifacts - G10H: ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE - G01H: MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES - G10D: STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR (organs, harmoniums or similar wind musical instruments with associated blowing apparatus G10B; pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards G10C; automatic musical instruments G10F; electrophonic musical instruments in which tones are generated by electromechanical means G10H) ## Abstract A device is provided for capturing vibrations produced by an object such as a musical instrument such as a cymbal of a drum kit. The device comprises a detectable element, such as a ferromagnetic element, such as a metal shim and a sensor spaced apart from and located relative to the musical instrument. The detectable element is located between the sensor and the musical instrument. When the musical instrument vibrates, the sensor remains stationary and the detectable element is vibrated relative to the sensor by the musical instrument. ## Claims ### Claim 1 A device for capturing vibrations produced by an object, the device comprising: a detectable element located relative to and spaced apart from the object; a sensor spaced apart from the object and located relative to the object; wherein the detectable element is located between the sensor and the object, and wherein when the object vibrates, the sensor remains stationary and the detectable element is vibrated relative to the sensor by the object, wherein the detectable element is a ferromagnetic shim, and wherein the sensor is an inductive coil, and wherein the device further comprises a magnet fixed adjacent the inductive coil such that the inductive coil and the magnet remain stationary when the object vibrates. ### Claim 2 (depends on 1) The device of claim 1 wherein the object is a musical instrument. ### Claim 3 (depends on 2) The device of claim 2 wherein the object is a cymbal, and wherein the device is a cymbal clamp. ### Claim 4 (depends on 3) The device of claim 3 wherein the ferromagnetic shim is spaced apart from the cymbal by a first pad or portion of a pad, and wherein the ferromagnetic shim is spaced apart from the sensor by a second pad or portion of a pad, such that the vibration of the ferromagnetic shim is proportional to the vibration of the cymbal. ### Claim 5 (depends on 4) The device of claim 4, wherein the first pad or portion of a pad and the second pad or portion of a pad comprise felt and the ferromagnetic shim is a metal shim. ### Claim 6 A cymbal clamp comprising: a cymbal clamping location between an upper pad and a lower pad; a sensor module spaced apart from the cymbal clamping location by one of the upper pad and the lower pad; a detectable element spaced apart from the cymbal clamping location and located between the cymbal clamping location and the sensor module; wherein the sensor module is stationary relative to a cymbal mounting location and the detectable element moves relative to the sensor module upon generation of an audio event at a cymbal at the cymbal clamping location. ### Claim 7 (depends on 6) The cymbal clamp of claim 6, wherein the detectable element is embedded in the upper pad or the lower pad. ### Claim 8 (depends on 6) The cymbal clamp of claim 6, wherein the one of the upper pad and the lower pad between the cymbal clamping location and the sensor module comprises a first pad portion and a second pad portion, and wherein the detectable element is located between the first pad portion and the second pad portion. ### Claim 9 (depends on 6) The cymbal clamp of claim 6, wherein the detectable element is ferromagnetic. ### Claim 10 (depends on 9) The cymbal clamp of claim 9, wherein the detectable element is a metal shim. ### Claim 11 (depends on 10) The cymbal clamp of claim 10, wherein the sensor module comprises: a housing; an inductive coil; and a magnet fixed adjacent the inductive coil such that it biases the coil, and wherein vibration of the metal shim generates an electromagnetic disturbance detectable by the inductive coil. ### Claim 12 (depends on 11) The cymbal clamp of claim 11, wherein upon generation of the audio event, the shim vibrates at a frequency directly related to a vibration frequency of the cymbal. ### Claim 13 (depends on 6) The cymbal clamp of claim 6 further comprising a processor for identifying an audio event based on vibrations detected at the sensor module. ### Claim 14 A cymbal clamp comprising: a cymbal clamping location between an upper pad and a lower pad; a sensor module spaced apart from the cymbal clamping location by one of the upper pad and the lower pad; a detectable element located between the cymbal clamping location and the sensor module; and a processor for identifying an audio event based on vibrations detected at the sensor module wherein the sensor module is stationary relative to a cymbal mounting location and the detectable element moves relative to the sensor module upon generation of an audio event at a cymbal at the cymbal clamping location. ### Claim 15 (depends on 6) The cymbal clamp of claim 6, wherein each of the upper pad and the lower pad are felt pads. ### Claim 16 A cymbal stand comprising: a cymbal clamping location between an upper pad and a lower pad; a sensor module spaced apart from the cymbal clamping location by one of the upper pad and the lower pad; a detectable element located between the cymbal clamping location and the sensor module; wherein the sensor module is stationary relative to the cymbal stand and the detectable element moves relative to the sensor module upon generation of an audio event at a cymbal at the cymbal clamping location. ### Claim 17 (depends on 16) The cymbal stand of claim 16, wherein the one of the upper pad and the lower pad between the cymbal clamping location and the sensor module comprises a first pad portion and a second pad portion, and wherein the detectable element is a ferromagnetic shim located between the first pad portion and the second pad portion. ### Claim 18 (depends on 17) The cymbal stand of claim 17, wherein the sensor module comprises: a housing; an inductive coil; and a magnet located adjacent the inductive coil such that it biases the coil, and wherein vibration of the ferromagnetic shim generates an electromagnetic disturbance detectable by the inductive coil. ### Claim 19 (depends on 18) The cymbal stand of claim 18, wherein upon generation of the audio event, the ferromagnetic shim vibrates at a frequency directly related to a vibration frequency of the cymbal. ### Claim 20 (depends on 16) The cymbal stand of claim 16 further comprising a processor for identifying an audio event based on vibrations detected at the sensor module. ### Claim 21 (depends on 20) The cymbal stand of claim 20 further comprising an audio output for outputting a sound based on the audio event identified by the processor. ### Claim 22 (depends on 14) The cymbal clamp of claim 14 further comprising an audio output for outputting a sound based on the audio event identified by the processor. ### Claim 23 A cymbal clamp comprising: a cymbal clamping location between an upper pad and a lower pad; a sensor module spaced apart from the cymbal clamping location by one of the upper pad and the lower pad; a detectable element located between the cymbal clamping location and the sensor module; wherein the sensor module is stationary relative to a cymbal mounting location and the detectable element moves relative to the sensor module upon generation of an audio event at a cymbal at the cymbal clamping location, and wherein each of the upper pad and the lower pad are felt pads.