112results about "Contact microphone transducers" patented technology

The present disclosure is of a bone conduction microphone. The bone conduction microphone comprises of a laminated structure and a base structure. The laminated structure is formed by a vibration unit and an acoustic transducer unit. The base structure is configured to load the laminated structure. At least one side of the laminated structure is physically connected to the base structure. The base structure vibrates based on an external vibration signal, the vibration unit deforms in response to the vibration of the base structure, and the acoustic transducer unit generates an electrical signal based on the deformation of the vibration unit. A resonant frequency of the bone conduction microphone is within a range of 2.5 kHz-4.5 KHz.

Vibration sensors are provided. The vibration sensor may include: a vibration assembly, the vibration assembly including a mass element and an elastic element, and the mass element being connected to the elastic element; a first acoustic cavity, the elastic element constituting one of sidewalls of the first acoustic cavity, and the vibration assembly vibrating to make a volume of the first acoustic cavity change in response to an external vibration signal; an acoustic transducer, the acoustic transducer being in communication with the first acoustic cavity and the acoustic transducer generating an electrical signal in response to a volume change of the first acoustic cavity; and a buffer, the buffer limiting a vibration amplitude of the vibration assembly, wherein the acoustic transducer has a first resonance frequency, the vibration assembly has a second resonance frequency, and the second resonance frequency of the vibration assembly is smaller than the first resonance frequency.

An abnormal noise reproduction device and an abnormal noise reproduction method thereof are provided in the disclosure. The abnormal noise reproduction device includes at least one measuring device, an analysis device, and a vibration device. The at least one measuring device includes a contact microphone and an accelerometer. The contact microphone is disposed on the abnormal noise generating part of a vehicle, senses vibration sound of the abnormal noise generating part, and generates a vibration sound signal. An acceleration signal is generated by synchronously sensing acceleration of the contact microphone over a time sequence through the accelerometer. The analysis device determines when the abnormal noise generating part produces abnormal noise according to the vibration sound signal. The vibration device applies vibration to the vehicle and reproduces the acceleration signal corresponding to the abnormal noise.

A device for performing active auscultation.SOLUTION: A main body, a body mounting structure, and one or more wings, wherein the main body comprises a memory, a battery, an IMU, a transceiver, and a DSP; Wherein the one or more wings comprise a microphone wing and a speaker wing, wherein the microphone wing comprises one or more microphones, wherein the speaker wing comprises a speaker, wherein the one or more wings comprise a temperature sensor, wherein the main body is configured to engage with the body attachment structure, and wherein the body attachment structure is configured to engage with the main body on a first side and an animal body on a second side.SELECTED DRAWING: Figure 3A

An audio transmitter (8) for a guitar comprises an electrochemical energy storage device (13) for supplying the audio transmitter (8) with the electrical energy required for operation, a microphone (14) for converting the guitar sound into an electrical audio signal, a radio module (11) for transmitting the audio signal, and a mounting bracket (16.1) for attaching the audio transmitter (8) to an edge of a soundhole of the guitar such that the microphone (14) is located in the body of the guitar. Furthermore, an audio radio system (1) with such an audio transmitter (8) is included.

The utility model relates to a sound pickup technology for an acoustic musical instrument, in particular to an array type sound pickup for the acoustic musical instrument, which comprises an integral array type sound pickup set consisting of a plurality of single sound pickups with different sizes. The single sound pick-up is formed by arranging a piezoelectric ceramic piece in an open type stamping aluminum alloy cavity shell, and the surface of the piezoelectric ceramic piece is covered with 0.3-0.5 mm silicone rubber for sealing. The sound pick-up is installed on a frequency resonance point of a sound production panel in the original sound musical instrument through a flexible double faced adhesive tape. The sound pick-up frequency range and the signal intensity can be expanded in the physical level by combining sound pick-ups with different sizes. The sound pickup device picks up the sound of the acoustic musical instrument with high quality, and provides a high-quality acoustic solution for the acoustic musical instrument in the fields of stage performance, studio recording and the like.

The present disclosure provides communication systems and devices for use in noise environments, such as during magnetic resonance imaging (MRI). In some embodiments, a communication headrest is provided that consists of a headrest that supports a patients' head, an optional bone conduction microphone, and one or more vibration actuators. The headset makes contact with noise-isolating earplugs worn by the subject such that vibrations generated by the vibration actuators are transferred through the earplug, via acoustic conduction, to enable the patient to hear audio content while the earplugs provide passive noise protection by occluding the ear canal. In other embodiments, active earplug devices are provided in which an acoustic transducer is contacted and supported by a noise isolating earplug, such that when the earplug is inserted into the ear canal, the acoustic transducer is brought into acoustic conductive communication with tissue surrounding the ear canal, facilitating acoustic communication through bone conduction.

An headphone is provided. The headphone includes a housing assembly, an interface assembly, and a wire assembly. The housing assembly includes a first housing, the first housing being provided with a receiving slot and an accommodation cavity in communication with the receiving slot; an interface assembly inserted within the receiving slot; a circuit board disposed within the accommodation cavity; and a wire assembly electrically connecting the circuit board and the interface assembly. In the manner disclosed above, a freedom of a mounting position and a mounting posture of the interface assembly may be improved, which facilitates the assembly of the headphone.

Whistling / wheezing detection device (1) for detecting whistling / wheezing based on a sound measured from a living body while the whistling / wheezing detection device (1) is in contact with a body surface (S) of the living body, wherein the whistling / wheezing detection device (1) comprises the following: a noise measuring element (M1, M2); a space-forming element (30, 33, 34, 35, 350) that forms a recording space (SP1) which accommodates the noise measurement element (M1, M2); and a cover element (36) that forms a pressure receiving unit (3a) which closes the receiving chamber (SP1) and receives pressure from the body surface (S), wherein the space-forming element (30, 33, 34, 35, 350) has a hole section (40) that is connected to an atmosphere, the recording chamber (SP1) is connected to the atmosphere via the hole section (40), and the hole section (40) includes a branching section (BR1 to BR3) between an inlet (41) on one side of the receiving space (SP1) and an outlet (49) on one side of the atmosphere and two branched hole sections (44, 46) that branch off from one side of the inlet at the branching section (BR1 to BR3), one branched hole section (46) of the two branched hole sections (44, 46) is connected to the outlet (49) and the other branched hole section (44) of the two branched hole sections is closed.

A high-quality voice signal processing device through removal of ambient noise based on multi-sensor signal fusion, includes: a voice microphone sensor that senses and outputs a speaker's voice signal; an accelerometer sensor that senses vibration of the speaker's vocal cords and outputs a signal; a noise reduction processing MCU that extracts a voice section according to vocal cord vibration using the output signal of the accelerometer sensor, synthesizes a low-frequency component of the accelerometer sensor and a low-frequency component of the voice microphone sensor at different synthesis ratios based on a level of noise extracted from the output signal of the voice microphone sensor using voice section information, and restores and outputs a voice signal by adding the synthesized low-frequency components and a high-frequency component of the voice microphone sensor; and a wireless communication module that externally outputs the restored voice signal.

A combined retro qin. Relate to a kind of national musical instrument, more particularly to a kind of structural improvement of combined retro qin. It include: resonance box, neck, the neck is fixedly connected with the end of resonance box;Fingerboard, the fingerboard is fixedly arranged above resonance box, one end is fixedly connected with the resonance box, the other end is fixedly connected with neck;Lower bridge, the lower bridge is fixedly arranged at the top of resonance box, for conducting the vibration energy of string;And tuning mechanism, several strings are tightened on lower bridge by tuning mechanism. The resonance box includes: resonance box side wall, resonance box panel, the resonance box panel is fixedly arranged at the top of resonance box side wall;And resonance box bottom plate, the resonance box bottom plate is fixedly arranged at the bottom of resonance box side wall, and is provided with sound hole. The present application improves the use experience, reduces the difficulty of string installation and replacement, the string stability is better, tuning is more convenient and accurate, and is beneficial to popularization and dissemination.

Small form-factor MEMS devices and methods of using the devices. An exemplary MEMS device includes an ACM. Certain devices comprise nanometer scale sensing gaps in the out-of-plane direction to increase vibration sensitivity in a vacuum casing. Certain devices described herein provide a differential sensing mechanism. Accelerometer contact microphones having an operational bandwidth ranging from 0 Hz and 10,000 Hz are also disclosed. The vibration acceleration sensitivity of certain devices described herein is better 100 μg√Hz.

Voice command recognition and natural language recognition are carried out using an accelerometer that senses signals from the vibrations of one or more bones of a user and receives no audio input. Since word recognition is made possible using solely the signal from the accelerometer from a person's bone conduction as they speak, an acoustic microphone is not needed and thus not used to collect data for word recognition. According to one embodiment, a housing contains an accelerometer and a processor, both within the same housing. The accelerometer is preferably a MEMS accelerometer which is capable of sensing the vibrations that are present in the bone of a user as the user is speaking words. A machine learning algorithm is applied to the collected data to correctly recognize words spoken by a person with significant difficulties in creating audible language.

The present invention provides a sound transmission assembly and a sound transmission method for transmitting speech uttered by a user wearing a breathing apparatus mask for one or more sound applications. [Solution] A sound transmission assembly (100) for a respiratory device, comprising a mouth-covering mask (10) worn by the user of the respiratory device, the sound transmission assembly (100) comprising: at least one vibration sensor assembly (110) that generates an audio signal based on vibrations detected on the outer surface of the mask (10); a sound application assembly (130) that applies the audio signal obtained from the at least one vibration sensor assembly (110); and a sound processing unit (120) that preprocesses the audio signal obtained from the vibration sensor assembly (110) before passing it to the sound application assembly (130) for application.

A sound capture system can include a sound capture device configured for placement within a sound-generating device. The sound capture system can include a suspension system configured to suspend the sound capture device within the sound-generating device. The suspension system acoustically decouples the sound capture device from the sound-generating device. The sound capture device includes a plurality of transducers configured to generate a plurality of audio signals concurrently from sound generated by the sound-generating device. In another aspect, the sound capture system includes a signal processing circuit.

An electronic stethoscope (100) for wearing on a body of a user includes a skin-mountable first circuit (110) includes a micro-electronic microphone (112) coupled thereto. The micro-electronic microphone (112) is configured to sense sounds from the body of the user (10) and to generate an analog signal representative thereof. A skin-mountable second circuit (130) is not contiguous with the first circuit (110), is spaced apart therefrom and includes circuitry that processes the analog signal from the electronic microphone (112). A flexible connector (140) electrically couples the first circuit (110) to the second circuit (130).

Wearable devices are disclosed for interpreting hand interactions and other gestures. Specific examples include a ring-shaped device wearable along a finger and a wrist-worn device. Each of the example devices utilizes one or more sensors for acquiring acoustic signals and depth information, and at least one processor that uses this information to detect movements associated with the hand.

A digital stethoscope with additional sensors for measuring orientation, positional changes, infrared radiation, strain, and electrophysiology is disclosed. Enhancements to Al driven system(s) and methods as a result of the additional sensors are disclosed. Methods and device implementations enabled by this feature set include providing instruction to a user for improved use of the digital stethoscope in obtaining sound from the body of a patient, automatic exam segmentation, automatic subject orientation capture, and motion capture not possible with a traditional stethoscope transducer alone. A further disclosure of a method for managing heart failure is described.

The invention relates to a foreign language environment creating method, system and device based on a noise reduction earphone and a readable storage medium, the method is implemented through the noise reduction earphone, a foreign language learner wears the noise reduction earphone to isolate external noise, and then the foreign language environment is created through the following steps. Comprises: S1, a microphone receives an external sound signal and transmits the external sound signal to a noise reduction earphone; s2, the noise reduction earphone identifies the received external sound signal as a first language signal; and S3, the noise reduction earphone translates the first language signal into a second language signal and broadcasts the second language signal. External sound is isolated through the noise reduction earphone, the external sound is processed through the microphone and the noise reduction earphone and then translated into corresponding foreign languages to be transmitted to human ears, it is guaranteed that a user is in a pure foreign language environment, the content of the foreign languages can be rapidly understood by combining the sound with actions and scenes in life, and the purpose that the input foreign languages can be understood is achieved. Therefore, the problems that foreign languages can only be memorized as disciplines, the final test taking score is low, and application cannot be achieved are solved.

A sensing system comprising a hand-held sensing device with a vibracoustic sensor module (VSM). The VSM comprises a voice coil component comprising a coil holder supporting wire windings; a magnet component comprising a magnet supported by a frame, a magnet gap configured to receive at least a portion of the voice coil component in a spaced and moveable manner; a connector connecting the voice coil component to the magnet component, the connector being compliant and permitting relative movement of the voice coil component and the magnet component; a diaphragm configured to induce a movement of the voice coil component in the magnet gap responsive to incident acoustic waves; a housing for retaining the vibroacoustic sensor module having a handle end and a sensor end, the sensor end having an opening, the VSM positioned such that at least a portion of the diaphragm extends across the opening.

An electronic device may include a memory, a communication interface configured to perform communication with an external server, and at least one processor including processing circuitry, and the at least one processor may be configured to: obtain audio data of ambient sound; obtaining a target audio signal of a preset type from the audio data; obtaining sound quality information of the target audio signal; sending a target audio signal to an external server through the communication interface based on the condition that the sound quality information is not equal to or greater than a threshold level; receiving a source audio signal corresponding to the target audio signal from an external server through the communication interface; identifying a playback time of the source audio signal based on the target audio signal; and providing a synthesized audio signal in which the inverted signal corresponding to the audio data and the source audio signal are synthesized based on the playback time.

The present invention relates to a headrest (10) equipped with a two-way bone conduction sound transmission system (1), which comprises one or more bone conduction speakers (5) and one or more bone conduction microphones (7) mounted on one and the same printed circuit board (3). Additional components of the two-way bone conduction sound transmission system (1), such as a control unit (13), contact and / or proximity sensors (9, 11), and an antenna for communication with external electronic devices, can be mounted on the same printed circuit board (3). Thanks to this solution, the assembly of the components of the two-way bone conduction sound transmission system (1) becomes easier, and the subsequent assembly of the two-way sound transmission system inside the headrest (10) becomes simpler, faster, and less prone to human error, thus reducing manufacturing costs while improving the quality of the final product.

An earphone (100), comprising a housing assembly (10) and an air conduction loudspeaker (12). The housing assembly (10) is provided with accommodating cavities (1001, 1002) and a sound outlet hole (1080) for communicating the accommodating cavities (1001, 1002) with the external environment; the air conduction loudspeaker (12) comprises a magnetic circuit assembly (120), a voice coil (122), and a diaphragm (123); the magnetic circuit assembly (120) comprises a cover body (121) having an open end (1211) and an annular flange (1212) provided at the open end (1211) of the cover body (121) and protruding from an outer peripheral surface of the cover body (121); the edge of the diaphragm (123) is fixed to the annular flange (1212) and covers the open end (1211) of the cover body (121); the voice coil (122) is connected to the diaphragm (123); the diaphragm (123) is located on the side of the cover body (121) facing away from the sound outlet hole (1080). In this way, the space utilization rate of the housing assembly (10) can be effectively increased, the overall size of the entire housing assembly (10) is reduced, and the sound quality can also be effectively improved.

A sound transmission assembly for a respirator apparatus that comprises as a mouth-covering mask to be worn by a user of the respirator apparatus is provided, the sound transmission assembly comprising: at least one vibration sensor assembly arranged to generate a speech signal based on vibrations sensed on an outer surface of said mask; and a sound application assembly arranged to apply the speech signal obtained from the at least one vibration sensor assembly.

An equipment for monitoring physiological status of a user includes a sound detection unit, a chest detection unit, an abdomen detection unit, and a control unit. The sound detection unit is configured to detect sound of breath and to generate a sound detection signal based on the sound of breath. The chest detection unit is configured to detect a parameter related to movement of a chest and to generate a chest detection signal based on the detection. The abdomen detection unit is configured to detect a parameter related to movement of an abdomen and to generate an abdomen detection signal based on the detection. The control unit is electrically connected to the sound detection unit, the chest detection unit, and the abdomen detection unit and is configured to determine a breathing status of a user based on the sound detection signal, the chest detection signal, and the abdomen detection signal.

An exemplary embodiment of the present disclosure provides a biometric identification system, comprising one or more sensors and a controller. The one or more sensors can be configured to generate data corresponding to sounds generated by the heartbeat of a user. The controller can be configured to receive the data and authenticate the user based, at least in part, on the data.

The application discloses a charging box and a control method thereof, a wireless earphone and a control method thereof, wherein the charging box is used in cooperation with the wireless earphone, the charging box is internally provided with a loudspeaker, and the control method of the charging box comprises the following steps: detecting whether audio data forwarded by the wireless earphone is received, wherein the audio data forwarded by the wireless earphone is sent to the wireless earphone by an audio playing terminal; and when the audio data forwarded by the wireless earphone is received, the loudspeaker is controlled to play the audio data. The application solves the problem that in the prior art, audio cannot be continuously played when the wireless earphone cannot be worn, realizes two modes of earphone playing and charging box playing, enhances the functionality of an audio playing system composed of the charging box and the wireless earphone, and can adapt to more use cases.

The sensing system includes a handheld sensing device having a vibroacoustic sensor module (VSM) comprising: a voice coil component including a coil holder supporting a winding; a magnet component comprising a magnet supported by a frame, the magnet gap configured to receive at least a portion of the voice coil component in a spaced-apart, movable manner; a connector connecting the voice coil component to the magnet component, the connector being compliant and allowing relative movement of the voice coil component and the magnet component; a diaphragm configured to induce movement of the voice coil component within the magnet gap in response to incident acoustic waves; and a housing for holding the vibroacoustic sensor module having a handle end and a sensor end, the sensor end having an opening, the VSM positioned so that at least a portion of the diaphragm extends across the opening.

A vibration sensor comprising: a vibration receiver comprising a housing and a vibration unit, the housing forming an acoustic cavity, the vibration unit being located in the acoustic cavity and separating the acoustic cavity into a first acoustic cavity and a second acoustic cavity; and an acoustic transducer in acoustic communication with the first acoustic cavity, wherein: the housing is configured to generate vibrations based on an external vibration signal, the vibration unit is vibrated in response to the vibrations of the housing and transmits the vibrations through the first acoustic cavity to the acoustic transducer to generate an electrical signal, the vibration unit comprises a mass element and a spring element, the vibration unit comprises a mass element and a spring element; the mass element and the spring element form an additional resonant system, a resonance frequency of a resonance peak of the additional resonant system being smaller than a resonance frequency of the acoustic transducer.

An apparatus for diagnosing a sound output lamp, and a method therefor are provided. The apparatus includes a sound piezo formed in a stack structure to vibrate a surface of an outer lens or a housing of the lamp to output sound, an audio driving device to generate power for audio driving of the sound piezo, a fault detection piezo in contact with the surface of the outer lens or the housing of the lamp to generate an electric signal in response to the surface of the outer lens or the housing being vibrated by the sound piezo, and a controller to control audio output of the sound piezo to the audio driving device, and diagnose whether the sound piezo is out of order based on whether the electric signal is received from the fault detection piezo in response to the audio signal being provided to the audio driving device.