A vibrator includes: a movable portion connected to a vibratable member; a driver configured to drive the movable portion to cause vibration of the movable portion to vibrate the vibratable member; and a driver supporter secured to a support member and configured to support the driver such that the driver is pivotable about an axis extending in a direction intersecting a movable direction of the movable portion.

This invention eliminates most mechanical switching in vibrational pickup circuits by using variable gains to combine signals of sensors in differential amplifiers as J1 humbucking pairs for J>1 number of sensors, with the sensors matched to produce the same level and phase of unwanted hum from external sources. It can also combine J>1 number of matched sensors with K>1 number of dissimilar sensors which are matched only to each other in the same manner. This produces not only all the possible mechanically switched humbucking signals, but all the continuously-varying combinations of humbucking signals in between.

This invention eliminates most mechanical switching in vibrational pickup circuits by using variable gains to combine signals of sensors in differential amplifiers as J1 humbucking pairs for J>1 number of sensors, with the sensors matched to produce the same level and phase of unwanted hum from external sources. It can also combine J>1 number of matched sensors with K>1 number of dissimilar sensors which are matched only to each other in the same manner. This produces not only all the possible mechanically switched humbucking signals, but all the continuously-varying combinations of humbucking signals in between.

This disclosure provides a transducer apparatus for an edge-blown aerophone, the edge-blown aerophone having an aerophone embouchure hole. An aerophone speaker delivers sound to a resonant chamber of the aerophone via the aerophone embouchure hole. An aerophone microphone receives, via the aerophone embouchure hole, sound in the resonant chamber. A housing provides a lip plate with a housing embouchure hole independent and separate from the aerophone embouchure hole. Breath sensors sense breath applied across the housing embouchure hole. An electronic processor, connected to the speaker, receives signals from the microphone and the breath sensors. The breath sensors provide signals indicative of breath strength. The electronic processor generates an excitation signal which is delivered as an acoustic excitation signal to the resonant chamber by the aerophone speaker. The electronic processor uses the signals it receives to determine a desired musical note which a player of the aerophone wishes to play.

This disclosure provides a transducer apparatus for an edge-blown aerophone, the edge-blown aerophone having an aerophone embouchure hole. An aerophone speaker delivers sound to a resonant chamber of the aerophone via the aerophone embouchure hole. An aerophone microphone receives, via the aerophone embouchure hole, sound in the resonant chamber. A housing provides a lip plate with a housing embouchure hole independent and separate from the aerophone embouchure hole. Breath sensors sense breath applied across the housing embouchure hole. An electronic processor, connected to the speaker, receives signals from the microphone and the breath sensors. The breath sensors provide signals indicative of breath strength. The electronic processor generates an excitation signal which is delivered as an acoustic excitation signal to the resonant chamber by the aerophone speaker. The electronic processor uses the signals it receives to determine a desired musical note which a player of the aerophone wishes to play.

A transducer apparatus for a labrosone is disclosed, the labrosone having a labrosone resonant chamber. A labrosone speaker delivers a sound signal to the labrosone resonant chamber. A labrosone microphone receives a resultant sound from the labrosone resonant chamber. A mouthpiece microphone receives sound from a labrosone mouthpiece. An electronic processor is connected to the labrosone speaker, and receives signals from the labrosone microphone and the mouthpiece microphone. The electronic processor generates an excitation signal which is delivered as an acoustic excitation signal to the labrosone resonant chamber by the labrosone speaker. The electronic processor uses the signals from the labrosone microphone and the mouthpiece microphone to determine a desired musical note which a player of the labrosone wishes to play. The electronic processor then synthesizes and outputs the desired musical note to an output device, whereby the musical note is played audibly and/or displayed visually to the player.

A transducer apparatus for a labrosone is disclosed, the labrosone having a labrosone resonant chamber. A labrosone speaker delivers a sound signal to the labrosone resonant chamber. A labrosone microphone receives a resultant sound from the labrosone resonant chamber. A mouthpiece microphone receives sound from a labrosone mouthpiece. An electronic processor is connected to the labrosone speaker, and receives signals from the labrosone microphone and the mouthpiece microphone. The electronic processor generates an excitation signal which is delivered as an acoustic excitation signal to the labrosone resonant chamber by the labrosone speaker. The electronic processor uses the signals from the labrosone microphone and the mouthpiece microphone to determine a desired musical note which a player of the labrosone wishes to play. The electronic processor then synthesizes and outputs the desired musical note to an output device, whereby the musical note is played audibly and/or displayed visually to the player.

A hand-held strumming device includes a hollow body, a power source, a motor, a regulator, and a strummer. The power source is disposed in the hollow body. The motor is in electrical communication with the power source. The regulator is in electrical communication with both the motor and the power source. The regulator is configured to selectively adjust a rotational speed of the motor. The strummer is rotatably disposed on the disk. The strummer is configured to be presented to strings of a stringed instrument upon rotation of the motor to strum the strings.

Processing implemented by computer means of sound data output by at least one sensor and activation of at least one actuator of an acoustically radiating structure. The sensor senses an acoustic signal output by the vibration of the radiating structure. The radiating structure bears at least one actuator controlled by the computer means and is thus involved in the vibration of the radiating structure. In particular, the method comprises the steps of: a) measuring a transfer function of the actuator, radiating structure and sensor assembly, b) controlling activation of the actuator so as to make the radiating structure vibrate, according to a selected setpoint: taking account of the transfer function measured, and taking account of the acoustic signal sensed by the sensor in feedback mode.

Processing implemented by computer means of sound data output by at least one sensor and activation of at least one actuator of an acoustically radiating structure. The sensor senses an acoustic signal output by the vibration of the radiating structure. The radiating structure bears at least one actuator controlled by the computer means and is thus involved in the vibration of the radiating structure. In particular, the method comprises the steps of: a) measuring a transfer function of the actuator, radiating structure and sensor assembly, b) controlling activation of the actuator so as to make the radiating structure vibrate, according to a selected setpoint: taking account of the transfer function measured, and taking account of the acoustic signal sensed by the sensor in feedback mode.