Aspects of the disclosure relate to using a display as a sound emitter and may relate to an electronic device including a display. In particular a vibration sensor such as an accelerometer is physically coupled to the display and senses display vibration to provide a high accuracy feedback loop with respect to representing actual audio output from the display. The electronic device includes an actuator physically coupled to the display and configured to cause vibration of the display in response to an audio signal. The electronic device further includes a vibration sensor physically coupled to the display and configured to output a vibration sensor signal proportional to the vibration of the display due to the actuator.

Aspects of the disclosure relate to using a display as a sound emitter and may relate to an electronic device including a display. In particular a vibration sensor such as an accelerometer is physically coupled to the display and senses display vibration to provide a high accuracy feedback loop with respect to representing actual audio output from the display. The electronic device includes an actuator physically coupled to the display and configured to cause vibration of the display in response to an audio signal. The electronic device further includes a vibration sensor physically coupled to the display and configured to output a vibration sensor signal proportional to the vibration of the display due to the actuator. The electronic device further includes a processor operably coupled to the vibration sensor. The processor is configured to adjust the audio signal based on the vibration sensor signal from the vibration sensor.

A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.

A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.

The invention relates to a structure-borne sound actuator for a motor vehicle, which comprises an electro-dynamic excitation unit, and the excitation unit is formed with an excitation side configured to excite an acoustic body, wherein an acoustically rigid intermediate element is secured to the excitation side and the intermediate element has a coupling side, which faces away from the excitation side, and is configured for coupling to the acoustic body.

The invention relates to a structure-borne sound actuator for a motor vehicle, which comprises an electro-dynamic excitation unit, and the excitation unit is formed with an excitation side configured to excite an acoustic body, wherein an acoustically rigid intermediate element is secured to the excitation side and the intermediate element has a coupling side, which faces away from the excitation side, and is configured for coupling to the acoustic body.

An electronic horn includes a cover (8) on a front side of an intermediate element (6). A first passage (P1) within the horn is defined by a central portion (82) of the cover (8) that projects into a cylindrical interior of a cylindrical water-proofing wall (621). Second passages (P2, P3, P4) extend generally concentrically with respect to the first passage (P1) and are respectively defined by water-proofing walls (83, 84) that are formed on the cover (8) and project into the interior spaces of water-proofing walls (622, 633). The outermost second passage (P4) opens toward the forward direction. The first and second passages (P1-P4) extend in a back-and-forth path that prevents any rainwater, which has entered the interior of the horn through the opening of the outermost second passage (P4), from reaching a resonance space (7) defined between the resonator (7) and a sound-generating oscillator (51).

A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.

A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.

An exemplary embodiment of the present disclosure may provide a sound generator which is connected to a vehicle body and generates sound, the sound generator including: a magnetic circuit generating vibration; a yoke contacting an upper surface of the magnetic circuit; an elastic member contacting at least a part of an upper surface of the yoke and performing vibration motion; a housing including an internal space formed as upper and lower sides of the housing are opened and lateral sides of the housing are closed; and a coil receiving an alternating current signal provided from the outside, wherein the coil is positioned in the internal space of the housing, wherein the sound generator transmits the vibration generated by the magnetic circuit to the vehicle body and vibrate at least a part of the vehicle body such that sound is generated from the vehicle body.