32results about "Multiple transducers" patented technology

A method and apparatus for monitoring vehicle window vibrations for voice command recognition are disclosed. An exemplary vehicle includes a vehicle window; an exterior panel; a vibration sensor coupled to the vehicle window to detect audio vibrations; an audio actuator coupled to the exterior panel to vibrate the exterior panel; and a controller. The controller is configured to detect a voice command from a user via the vibration sensor, identify an audio response based on the voice command, and transmit the audio response to the user via the audio actuator.

The present application provides a sound capture method applied to a microphone. The microphone comprises a laser self-mixing device and a diaphragm device, the diaphragm device comprises a membrane configured to respond to sound vibration, and the laser self-mixing device and the diaphragm device are separately configured to detect the vibration of the membrane. In the method, a first voltage signal is obtained using the laser self-mixing device, and a second voltage signal is simultaneously obtained using the diaphragm device. If the first voltage signal is equal to or less than a preset threshold, the first voltage signal is converted into an audio signal, or if the first voltage signal is greater than a preset threshold, the second voltage signal is converted into an audio signal. According to the method of the present application, the audio signal may be collected in two different manners, so that the switching between the two signals is realized using a preset threshold, and the more consistent signal is selected and converted into an audio signal. This can ensure the quality of the audio signal. The present application further relates to a microphone and an electronic device.

The method for audio signal generation may include obtaining a bone conduction audio signal and an air conduction audio signal. The method may also include obtaining a trained machine learning model that provides a mapping relationship between a set of bone conduction data derived from a specific bone conduction audio signal and one or more sets of equivalent air conduction data derived from a specific equivalent air conduction audio signal. The method may also include determining a target set of equivalent air conduction data corresponding to the bone conduction audio signal using the trained machine learning model based on the bone conduction audio signal and the air conduction audio signal. The method may further include causing an audio signal output device to output a target audio signal representing the speech of the user based on the target set of equivalent air conduction data.

The present disclosure provides an acoustic output device including a speaker assembly. The speaker assembly may include a transducer, a diaphragm, and a housing. A vibration of the diaphragm driven by the transducer may generate an air conduction sound wave. The housing may form an accommodating chamber for accommodating the transducer and the diaphragm. The diaphragm may separate the accommodating chamber to form a first chamber and a second chamber. A sound outlet communicating with the second chamber is arranged on the housing. The air conduction sound wave is transmitted to the outside of the acoustic output device through the sound outlet. A sound guiding channel communicating with the sound outlet is provided on the housing for guiding the air conduction sound wave to a target direction outside the acoustic output device. The length of the sound guiding channel may be less than or equal to 7 mm.

This application provides a TWS earphone and a method and apparatus for playing TWS earphones. The TWS earphone includes: an audio signal processing path, a crossover, and at least two speakers; wherein the output terminal of the audio signal processing path is connected to the input terminal of the crossover; the output terminal of the crossover is connected to the at least two speakers; the audio signal processing path is configured to output a speaker driving signal; the crossover is configured to divide the speaker driving signal into at least two frequency bands of sub-audio signals, the at least two frequency bands corresponding to the main operating frequency bands of the at least two speakers; adjacent frequency bands in the at least two frequency bands partially overlap, or adjacent frequency bands in the at least two frequency bands do not overlap; the at least two speakers are configured to play the corresponding sub-audio signals. This application can achieve high sound quality across all frequency bands of the audio source and support ultra-wideband voice calls.

The present specification provides an acoustic output device, which may include a bone conduction acoustic assembly, an air conduction acoustic assembly, and a housing. The bone conduction acoustic assembly may generate bone conduction acoustic waves. The air conduction acoustic assembly may generate air conduction acoustic waves. The housing may include an accommodating cavity that accommodates the bone conduction acoustic assembly and the air conduction acoustic assembly. At least a portion of the housing may contact a user's skin and transmit the bone conduction acoustic waves through the action of the bone conduction acoustic assembly. The air conduction acoustic waves may be generated based on vibrations when at least one of the housing and the bone conduction acoustic assembly generates the bone conduction acoustic waves.

This microphone provides the ability to switch between unidirectional and omnidirectional patterns without degrading sound quality. [Solution] The microphone 1 comprises a dynamic microphone unit 10 and a condenser microphone unit 90, and a switch 93 allows switching between a dynamic microphone mode in which the dynamic microphone unit is activated, a condenser microphone mode in which the condenser microphone unit is activated, and a hybrid microphone mode in which both the dynamic microphone unit and the condenser microphone unit are activated simultaneously. This makes it possible to switch between unidirectional and omnidirectional modes without degrading sound quality.

A speaker includes a frame (10), a vibration assembly (30) and a magnetic circuit assembly (50). The vibration assembly (30) is assembled on the frame (10). The magnetic circuit assembly (50) is assembled on the frame (10). The vibration assembly (30) includes a voice coil (34) and a piezoelectric element (33), the voice coil (34) and the piezoelectric element (33) are arranged coaxially, and the voice coil (34) is between the piezoelectric element (33) and the magnetic circuit assembly (50).

A micro-speaker for use in hearing and other body worn devices is disclosed, including an acoustic conduit defining an acoustic path between first and second air spaces. A first acoustic transducer is located between the acoustic conduit and the first air space and a second acoustic transducer located between the acoustic conduit and the second air space. The second acoustic transducer is operable to more or less obstruct an acoustic aperture between the acoustic conduit and the second air space, wherein concurrent operation of the first and second acoustic transducers generates an acoustic audio signal that propagates between the first and second air spaces. An acoustic vent between the acoustic conduit and the second air space has an acoustic impedance that is independent of the operation of the second acoustic transducer.

This disclosure provides methods and apparatuses related to a microphone. In an implementation, a microphone includes a laser self-mixing apparatus and a diaphragm apparatus, the diaphragm apparatus includes a membrane configured to respond to a sound vibration, and the laser self-mixing apparatus and the diaphragm apparatus are separately configured to detect a vibration of the membrane. In an example method performed by the microphone, a first voltage signal is obtained by using the laser self-mixing apparatus, and a second voltage signal is simultaneously obtained by using the diaphragm apparatus. If the first voltage signal is less than or equal to a preset threshold, the first voltage signal is converted into an audio signal; or if the first voltage signal is greater than the preset threshold, the second voltage signal is converted into an audio signal.

The present disclosure provides an acoustic output apparatus. The acoustic output apparatus may include a bone-conduction acoustic assembly, an air-conduction acoustic assembly, and a housing. The bone-conduction acoustic assembly may be configured to generate bone-conduction sound waves. The air-conduction acoustic assembly may be configured to generate air-conduction sound waves. The housing may include an accommodating chamber configured to accommodate the bone-conduction acoustic assembly and the air-conduction acoustic assembly. At least a portion of the housing may be in contact with a user's skin to transmit the bone-conduction sound waves under an action of the bone-conduction acoustic assembly. The air-conduction sound waves may be generated based on vibrations of at least one of the housing or the bone-conduction acoustic assembly when the bone-conduction sound waves are generated.

An arrangement for producing sound in an electronic device comprises a magnetic vibrator comprising a first part and a second part provided with permanent magnets, and at least one induction coil. The arrangement further comprises a piezoelectric vibrator comprising piezoelectric material for generating audio-frequency vibrations resulting from deformations of the material by supplying to said material a second electrical signal. The magnetic vibrator and the piezoelectric vibrator have a common audio amplifier. Said first and second electrical signal are supplied from the same audio output to the magnetic vibrator and the piezoelectric vibrator.

The present disclosure provides an acoustic output device including a speaker assembly. The speaker assembly may include a transducer, a diaphragm, and a housing. A vibration of the diaphragm driven by the transducer may generate an air conduction sound wave. The housing may form an accommodating chamber for accommodating the transducer and the diaphragm. The diaphragm may separate the accommodating chamber to form a first chamber and a second chamber. A sound outlet communicating with the second chamber is arranged on the housing. The air conduction sound wave is transmitted to the outside of the acoustic output device through the sound outlet. A sound guiding channel communicating with the sound outlet is provided on the housing for guiding the air conduction sound wave to a target direction outside the acoustic output device. The length of the sound guiding channel may be less than or equal to 7 mm.

The invention relates to a deep learning active sound design system and method. Systems and methods for active sound design (ASD) generation are provided. The system may include one or more speakers and a computing device including a processor and a memory. The memory may be configured to store instructions that, when executed by the processor, are configured to cause the processor to receive one or more inputs for synthetic sound generation, classify the one or more inputs as a fast refresh rate input (FRRI) or a slow refresh rate input (SRRI), allocate one or more processing resources according to a refresh rate, and transmit the one or more processing resources to the processor. An ASD is generated based on the one or more inputs, and the synthesized sound is played on the one or more speakers.

The present disclosure provides an acoustic device. The acoustic device may include a housing, a transducer, and a diaphragm. The housing may be configured to form a cavity. The transducer may be arranged in the cavity and connected to the housing. The housing may produce a bone-conduction sound under an action of the transducer. The diaphragm may be connected between the transducer and the housing to divide the cavity into a first cavity and a second cavity. The housing may be provided with at least one pressure relief hole communicating with the first cavity and at least one sound modulation hole communicating with the second cavity. At least a portion of the at least one pressure relief hole and at least a portion of the at least one sound modulation hole may be arranged adjacently. The housing may be further provided with a sound outlet hole communicating with the second cavity. The diaphragm may produce an air-conduction sound transmitted outward through the sound outlet hole during a relative movement of the transducer and the housing.

The invention relates to a MEMS microphone for detecting sound waves. The MEMS microphone includes a sensor and a housing. The housing surrounds an interior region of the MEMS microphone and has a vent that enables fluid communication between the interior region and an exterior region of the MEMS microphone. Wherein the sensor is a thermal sensor configured to measure acoustic waves from fluid flow through the vent, the acoustic waves causing a pressure difference between an inner region and an outer region of the MEMS microphone. Furthermore, the invention relates to a photoacoustic gas sensor, the sensor chamber of which likewise comprises a sensor and a housing, similar to a MEMS microphone, the housing surrounding the inner region of the sensor chamber and the sensor chamber having a vent allowing fluid communication between the inner region and the outer region of the sensor chamber. The sensor of the sensor chamber, similar to a sensor of a MEMS microphone, is a thermal sensor configured to measure acoustic waves as a function of fluid flow through the vent.

The method for audio signal generation may include obtaining a bone conduction audio signal and an air conduction audio signal. The method may also include obtaining a trained machine learning model that provides a mapping relationship between a set of bone conduction data derived from a specific bone conduction audio signal and one or more sets of equivalent air conduction data derived from a specific equivalent air conduction audio signal. The method may also include determining a target set of equivalent air conduction data corresponding to the bone conduction audio signal using the trained machine learning model based on the bone conduction audio signal and the air conduction audio signal. The method may further include causing an audio signal output device to output a target audio signal representing the speech of the user based on the target set of equivalent air conduction data.

Acoustic output device, comprising: an acoustic bone conduction assembly for generating bone conduction sound waves; an acoustic air duct assembly for generating air duct sound waves; and A housing for receiving at least part of the acoustic bone conduction assembly and the acoustic air conduction assembly, wherein the housing comprises a first chamber and a second chamber, wherein the first chamber is used to receive at least part of the acoustic bone conduction assembly, wherein the housing is provided with a sound outlet opening which communicates with the second chamber, wherein the air conduction sound waves are transmitted through the sound outlet opening to the environment of the acoustic output device, wherein the housing is further provided with at least one sound regulating opening which communicates with the second chamber, and wherein a peak resonance frequency of the resonance peak in an open state of the at least one sound regulating opening is shifted towards higher frequencies compared to a peak resonance frequency of the resonance peak in a closed state of the at least one sound regulating opening.

The present disclosure provides an acoustic device. The acoustic device may include a housing, a transducer, and a diaphragm. The housing may be configured to form a cavity. The transducer may be arranged in the cavity and connected to the housing. The housing may produce a bone-conduction sound under an action of the transducer. The diaphragm may be connected between the transducer and the housing to divide the cavity into a first cavity and a second cavity. The housing may be provided with at least one pressure relief hole communicating with the first cavity and at least one sound modulation hole communicating with the second cavity. At least a portion of the at least one pressure relief hole and at least a portion of the at least one sound modulation hole may be arranged adjacently. The housing may be further provided with a sound outlet hole communicating with the second cavity. The diaphragm may produce an air-conduction sound transmitted outward through the sound outlet hole during a relative movement of the transducer and the housing.

Systems and methods for active sound design (ASD) generation are provided. The system may comprise one or more speakers and a computing device, comprising a processor and a memory. The memory may be configured to store instructions that, when executed by the processor, are configured to cause the processor to receive one or more inputs for synthetic sound generation, classify the one or more inputs as fast refresh rate inputs (FRRIs) or slow refresh rate inputs (SRRIs), assign one or more processing resources as a function of refresh rate, generate ASD based on the one or more inputs, and play the synthetic sound on the one or more speakers.

Acoustic output device, characterized by an acoustic bone conduction assembly for generating bone conduction sound waves; an acoustic air duct assembly for generating air duct sound waves; and A housing for receiving at least part of the acoustic bone conduction assembly and the acoustic air conduction assembly, wherein the housing comprises a first chamber and a second chamber, wherein the first chamber is used to receive at least part of the acoustic bone conduction assembly, wherein the housing is provided with a sound outlet opening which communicates with the second chamber, wherein the air conduction sound waves are transmitted through the sound outlet opening to the environment of the acoustic output device, wherein the housing is further provided with at least one pressure relief opening which communicates with the first chamber; wherein the acoustic bone conduction assembly comprises a magnetic circuit system and a coil assembly, wherein the magnetic circuit system forms a magnetic gap, wherein the coil assembly is arranged in the first chamber and projects into the magnetic gap, and wherein a communication opening is provided in the coil assembly.

The present disclosure provides an acoustic output apparatus. The acoustic output apparatus may include a bone-conduction acoustic assembly, an air-conduction acoustic assembly, and a housing. The bone-conduction acoustic assembly may be configured to generate bone-conduction sound waves. The air-conduction acoustic assembly may be configured to generate air-conduction sound waves. The housing may include an accommodating chamber configured to accommodate the bone-conduction acoustic assembly and the air-conduction acoustic assembly. At least a portion of the housing may be in contact with a user's skin to transmit the bone-conduction sound waves under an action of the bone-conduction acoustic assembly. The air-conduction sound waves may be generated based on vibrations of at least one of the housing or the bone-conduction acoustic assembly when the bone-conduction sound waves are generated.

An audio device and a method for designing and manufacturing a diaphragm, the audio device comprising a diaphragm and a transducer, the diaphragm having a curved profile adapted to radiate audio signals from a plurality of flexural modes and piston modes, one or more of the plurality of flexural modes having a consistent nodal line position, the diaphragm having a front side and a rear side, the transducer being coupled to the rear side of the diaphragm, the transducer being adapted to drive the diaphragm to radiate audio signals with reduced audio distortion, wherein each of the plurality of flexural modes has a minimum position across the entire diaphragm, and wherein the transducer is mounted at one of the minimum positions of the plurality of flexural modes, and one or more impedance components are mounted at at least one of the remaining minimum positions to inertially balance the diaphragm based on a predetermined relative average modal velocity limit.

The present disclosure relates to a bidirectional integrated loudspeaker with a piezoelectric diaphragm as a tweeter. Aspects of the subject technology relate to a device that includes a moving-coil loudspeaker that includes a diaphragm to play low-frequency signals from an audio signal source, and a piezoelectric transducer coupled to the diaphragm to play high-frequency signals from the audio signal source. A coupler couples the diaphragm to a housing of the device.

The present disclosure provides an acoustic device. The acoustic device may include a housing, a transducer, and a diaphragm. The housing may be configured to form a cavity. The transducer may be arranged in the cavity and connected to the housing. The housing may produce a bone-conduction sound under an action of the transducer. The diaphragm may be connected between the transducer and the housing to divide the cavity into a first cavity and a second cavity. The housing may be provided with at least one pressure relief hole communicating with the first cavity and at least one sound modulation hole communicating with the second cavity. At least a portion of the at least one pressure relief hole and at least a portion of the at least one sound modulation hole may be arranged adjacently. The housing may be further provided with a sound outlet hole communicating with the second cavity. The diaphragm may produce an air-conduction sound transmitted outward through the sound outlet hole during a relative movement of the transducer and the housing.

There is provided a loudspeaker apparatus having: a first unit arranged to propagate sound in a first frequency range; and a second unit arranged to propagate sound in a second frequency range that is higher than the first frequency range. The first unit includes a sound-radiating member and the second unit is mounted to the sound-radiating member of the first unit. The first unit and the second unit are driven by separate audio channels and / or the sound-radiating member of the first unit is planar.

A hybrid microspeaker includes a low-frequency range speaker and a high-frequency range speaker. The low-frequency range speaker includes a frame, a low-frequency range magnetic circuit installed inside the frame, a voice coil configured to vibrate by mutual electromagnetic force with the low-frequency range magnetic circuit, and a diaphragm seated on the frame and configured to vibrate with the voice coil to generate sound. The high-frequency range speaker includes a bracket coupled to an upper portion of the frame, a high-frequency range magnetic circuit installed inside the bracket, and a flexible printed circuit board (FPCB) seated on the bracket and including a pattern configured to vibrate by mutual electromagnetic force with the high-frequency range magnetic circuit to generate sound.

This application provides an acoustic output device, comprising: a bone conduction acoustic component for generating bone conduction sound waves; an air conduction acoustic component for generating air conduction sound waves; and a housing for accommodating at least a portion of the bone conduction acoustic component and the air conduction acoustic component. The housing includes a first chamber and a second chamber, the first chamber accommodating at least a portion of the bone conduction acoustic component, and the housing having a sound outlet communicating with the second chamber. The air conduction sound waves are transmitted to the outside of the acoustic output device through the sound outlet. The frequency response curve of the air conduction sound waves has one or more resonant peaks, and the peak resonant frequency of the resonant peaks is greater than or equal to 1 kHz.

A speak includes a housing, a diaphragm, a first vibrating assembly, and a second vibrating assembly. The housing has an accommodating groove. The diaphragm is relatively arranged in the accommodating groove. The diaphragm includes a first diaphragm part and a second diaphragm part. The second diaphragm part is arranged around the first diaphragm part. The first vibrating assembly is arranged on the first diaphragm part, for driving the first diaphragm part. A movable space is formed between the first diaphragm part and the bottom of the accommodating groove. The second vibrating assembly is on the peripheral side of the movable space. The first vibrating assembly vibrating through piezoelectric means.

The present disclosure provides an acoustic output apparatus. The acoustic output apparatus may include a bone-conduction acoustic assembly, an air-conduction acoustic assembly, and a housing. The bone-conduction acoustic assembly may be configured to generate bone-conduction sound waves. The air-conduction acoustic assembly may be configured to generate air-conduction sound waves. The housing may include an accommodating chamber configured to accommodate the bone-conduction acoustic assembly and the air-conduction acoustic assembly. At least a portion of the housing may be in contact with a user's skin to transmit the bone-conduction sound waves under an action of the bone-conduction acoustic assembly. The air-conduction sound waves may be generated based on vibrations of at least one of the housing or the bone-conduction acoustic assembly when the bone-conduction sound waves are generated.