12 results about "Occlusion effect" patented technology

The present disclosure relates to a voice detection method, device, earphones and storage medium. The voice detection method includes: obtaining a first voice signal and a second voice signal, wherein the first voice signal is a sound signal obtained from the wearer's ear canal, and the second voice signal is a sound signal obtained from the wearer's environment; obtaining a first energy parameter and a second energy parameter, the first energy parameter represents the energy value of the first voice signal in a preset frequency band, and the second energy parameter represents the energy value of the second voice signal in a preset frequency band, wherein the preset frequency band is the frequency interval generated by the occlusion effect; obtaining a numerical relationship between the first energy parameter and the second energy parameter, and if the numerical relationship represents that the first energy parameter is greater than the second energy parameter, it is determined that the wearer has emitted a sound signal. Using the method in the present disclosure, it is possible to accurately determine whether the wearer of the earphones has emitted a sound signal without the need for additional sensor hardware and a microphone array composed of earphones.

An in-ear device (IED) of a wearable system captures audio data from within the ear canal of a user indicative of the user's heartbeat. The IED when worn occludes the user's ear canal, causing amplification of low frequency sounds due to the occlusion effect, and improving the ability of the acoustic sensor to detect the user's heartbeat sounds. The wearable system classifies the audio data to identify portions of the audio data corresponding to a first heart sound and a second heart sound, which correspond to different portions of the heartbeat of the user. The wearable system estimates a blood pressure level of the user based upon the identified heart sounds.

A hearing aid control method for eliminating an ear blockage effect comprises the following steps: acquiring an audio decibel recorded by a first microphone as a first decibel; the decibel interval where the first decibel falls is judged, the access mode of the microphones is selected based on the decibel interval, and the first access mode is that the first microphone and the second microphone are both electrically connected with the audio access interface, and the valve of the air hole of the hearing aid is in a closed state; the second access mode is that the first microphone is connected with the hearing aid control chip; and when the second access mode is executed, the valve opening degree of the hearing aid air hole is controlled based on the first decibel, and whether the second microphone is electrically connected with the audio access interface is controlled. According to the invention, the automatic opening and closing of the air hole are realized, while the ear plugging effect and the ear canal damp-heat problem are alleviated, the sound quality is ensured and the howling is effectively inhibited through an acoustic management mechanism of software and hardware collaboration, so that the hearing aid can give consideration to both comfort and definition in different use scenes.

A noise reduction system including a feedforward sensor, an audio controller, and an acoustic driver is provided. The feedforward sensor is arranged to detect body conducted vibrations. The feedforward sensor is configured to generate a feedforward signal based on the detected vibrations. The audio controller is communicatively coupled to the feedforward sensor. The audio controller is configured to generate an audio output signal based on the feedforward signal and a command signal. The acoustic driver is configured to render audio based on the audio output signal. In some examples, the noise reduction system further includes a feedback sensor arranged to capture sound within an ear canal of a user. The feedback sensor is configured to generate a feedback signal based on the captured sound. The audio output signal is generated further based on the feedback signal.

A sound effect playback method and apparatus, a voiceprint identifier display method and apparatus, and a terminal device, relating to the technical field of computers. The sound effect playback method comprises: displaying a virtual environment containing a first virtual object; when the first virtual object is located in a visual occlusion area of the virtual environment and triggers a sound production event in the visual occlusion area, playing back a sound effect of the sound production event obtained after the sound production event undergoes attenuation processing, wherein the visual occlusion area is used for generating an occlusion effect on a virtual element in the area, and the attenuation processing is used for attenuating the effect of the sound effect on identification of the location of the first virtual object. The technical solution provided in embodiments of the present application can enhance the richness of sound effect playback in a game application program.

The invention discloses an anti-environmental noise tooth gesture interaction action irrelevant identity authentication method, and belongs to the field of Internet of Things and pervasive computing. An extraauricular microphone and an intraauricular microphone of the smart earphone sense an environmental noise signal and an audio signal in an ear canal, respectively. The related occlusion effect enables audio signals acquired in the ear to have frequency selection and individual difference characteristics. When the user executes the tooth gesture interaction action, the corresponding in-ear bone conduction audio signal has individual difference after being modulated by the face conduction path, and is not easily influenced by the interaction action. According to the method, the environmental noise interference is effectively eliminated by constructing the personalized mapping relation of the audio signals inside and outside the ear, and the confrontation learning network is utilized to extract conduction path tissue related biological characteristics from the captured tooth gesture in-ear bone conduction audio signals, so that the tooth gesture interaction action irrelevant identity authentication resisting the environmental noise interference is realized. The method has the advantages of fast authentication, effective resistance to environmental noise and robustness to inconsistent interaction actions of tooth gestures.

The earphone and the method for eliminating the occlusion effect of the earphone are provided, the earphone is provided with at least one air release hole on the shell, and an air release switch corresponding to the at least one air release hole is arranged on the shell and movably connected to the shell to control the opening and closing state of the air release hole. The air release switch is provided with a transmission part and a shielding part, the transmission part passes through the inside and outside of the shell, the wearer of the earphone can hold one end of the transmission part extending outside the shell to operate the air release switch, the transmission part can drive the shielding part to move, and the shielding part can cover the air release hole or expose at least part of the air release hole when moving to different positions. Therefore, when the occlusion effect occurs in the ear canal of the wearer, more area of the air release hole can be exposed by operating the air release switch, the air release amount of the shell is increased, and the low-frequency signal in the shell can be timely and quickly released. The structure of the air release switch is simple and convenient to operate, and the occlusion effect can be effectively weakened or eliminated.

In a method for actively suppressing occlusion effects when reproducing an audio signal with a headphone (10) or a hearing aid according to the present application, an external sound signal is picked up (20) with at least one external microphone (11) of the headphone or the hearing aid. A speech signal is picked up (21) with at least one additional microphone (12, 17). A dry component of the picked-up speech signal is estimated (22), wherein the dry component of the picked-up speech signal is a part of the picked-up speech signal without reverberation or ambient noise caused by the surrounding space. A speech component is extracted (23) from the external sound picked up with the at least one external microphone by a filter, wherein filter coefficients of the filter are determined (23) based on the estimated dry component of the picked-up speech signal, or the estimated dry component of the picked-up speech signal is filtered such that a speech component is generated (23) having a similar spatiality as the speech component at the external microphone. The extracted or generated speech component is output (24) by a loudspeaker of the headphone or the hearing aid.

The utility model relates to the technical field of Bluetooth earphones, and discloses an open Bluetooth earphone based on ergonomics, the open Bluetooth earphone comprises an earphone body and an ear hook, a spring is fixedly connected in a rotating seat, one end, away from the rotating seat, of the spring is fixedly connected with a first fluted disc, and one end, away from the ear hook, of a rotating shaft is fixedly connected with a second fluted disc. A movable sleeve is slidably arranged on the outer wall of the ear hook, an elastic piece is fixedly connected to one side of the upper end of the movable sleeve, and a buckle is fixedly connected to one side of the elastic piece. According to the open type Bluetooth earphone based on the human engineering, through the combined arrangement of the spring, the first fluted disc and the second fluted disc, the elasticity of the spring and the occlusion effect of the first fluted disc and the second fluted disc, the flexible adjustment of the ear hanging angle is realized, so that the earphone can adapt to the ear contours and wearing habits of different users; and through the arrangement of the movable sleeve, the elastic sheet and the buckle, the movable sleeve can slide outside the ear hook, and improvement of the fitting degree and the comfort degree of the earphone is facilitated.

This disclosure provides a speech enhancement method, apparatus, electronic device, storage medium, and program, relating to the field of audio processing technology. The specific steps are as follows: in response to detecting that a user is wearing headphones, a prompt audio data is emitted through a speaker in the headphones, and audio data within the ear canal is collected; a target occlusion effect curve is determined based on the prompt audio data and the audio data within the ear canal; a second sound signal is filtered to obtain a third sound signal; and a noise signal is calculated based on the first sound signal to enhance the third sound signal. This disclosure determines the frequency response curve within the ear canal and the occlusion effect curve by using the prompt audio data and the audio data within the ear canal, thereby enhancing the third sound signal, avoiding high computational resource consumption during speech enhancement, and improving the efficiency of speech enhancement.

The invention provides a user interaction method which can be applied to the technical field of financial science and technology. The method comprises the following steps: collecting and detecting sound signals around a user; in response to the detected target sound information, the target sound information is converted into a sound intensity signal, the target sound information comprises active expiration sound of a user or target environment sound, and the target environment sound is expressed as environment sound exceeding a noise level threshold value; generating a shielding special effect image based on the sound intensity signal, and performing real-time shielding on target sensitive information in an information display page by using the shielding special effect image; and in response to a target interaction operation of the user, gradually clearing the real-time shielding effect of the shielding special effect image, and displaying the shielded target sensitive information. The invention further provides a user interaction device, equipment, a storage medium and a program product.

For reducing noise when playing back an audio signal with headphones or a hearing aid, at least one sensor is provided for detecting a sensor signal based on ambient sound and / or structure-borne sound. The sensor signal or the sensor signals are first fed to a preprocessing unit for preprocessing, which carries out filtering and / or summation for active noise suppression, active suppression of the occlusion effect and / or an ambient mode. With a subsequent filter bank, the sensor signal or the output signal of the preprocessing unit is divided into frequency bands by means of several filters. One or more calculation units are provided for calculating weighting factors for the individual frequency bands, which calculate the weighting factors based on a measure of the sensor signal in the respective frequency band and a measure of the noise signal of the sensor or the output signal of the preprocessing unit in silence in this frequency band. The individual frequency bands are multiplied by the corresponding calculated weighting factors using multipliers. The weighted output signals of the filter bank are summed to form an overall output signal using an adder. A compensation signal based on the overall output signal is output using an output unit.