19 results about "Sidetone" patented technology

Disclosed is an audio device with sidetone processing, the audio device comprising: a plurality of microphones; an output transducer configured to output a proximal audio output signal; and a processor circuit comprising a signal processor module configured to provide a far-end audio output signal and a sidetone module configured to provide a sidetone audio output signal. The signal processor module is configured to process a first audio input signal and a second audio input signal to provide a plurality of filter parameters, the sidetone module is configured to obtain first data indicative of a plurality of filter parameters and to process the first audio input signal and the second audio input signal using one or more filters based on the first data to provide a sidetone audio output signal, and wherein the sidetone audio output signal comprises a sidetone signal, the near-end audio output signal is based on the sidetone audio output signal and the far-end audio input signal.

To provide a communication device capable of encouraging users of communication devices to speak at an appropriate volume.SOLUTION: A communication device 1 includes: a bone conduction microphone 11 that collects the voices of a user and that generates a transmitting signal; a receiver 12 that reproduces sounds based on received signals from an opposite device; a voice transmission line 22 that transmits signals from the bone conduction microphone 11 to the opposite device; a receiving transmission line 24 that transmits the received signal to a receiver 12; and a loopback circuit 25 is placed between the voice transmission line 22 and the receiving transmission line 24 to process the transmitting signals and synthesize the generated sidetone signals with the receive signals. The loopback circuit 25 operates based on any of multiple pre-prepared operating modes to control at least one of the on / off of sidetone and the level of sidetone reproduced by receiver 12 based on the sidetone signal.SELECTED DRAWING: Figure 3

The invention provides a fire-fighting telephone audio signal processing circuit and processing method, and relates to the technical field of communication equipment, and the circuit comprises a signal processing module which is configured to process a local audio signal inputted from a local audio input port, generate a first processing signal with a phase opposite to that of the local audio signal, and send the first processing signal to the local audio input port; the first processing signal is sent to the bus port; receiving a mixed signal from a bus port, wherein the mixed signal comprises a forward audio signal from a far end and the first processing signal looped back through the bus; performing offset processing on the mixed signal based on a reference signal of the first processing signal so as to suppress the first processing signal component in the mixed signal, thereby outputting an audio signal of which the sidetone is suppressed at a far-end audio output port; and the parameter dynamic adjustment module is connected to the signal processing module and is used for dynamically adjusting the offset processing parameters according to the characteristics of the signal or the mixed signal of the far-end audio output port so as to optimize the sidetone suppression effect.

The invention discloses an interference processing method, system and equipment based on carrier phase reference and a medium, and the method comprises the steps: constructing a reference phase of each sidetone signal based on the phase of a main carrier signal and design parameters of a detector beacon signal; constructing a reference model of each sidetone signal based on the reference phase of each sidetone signal, and calculating a cross-correlation residual phase of each sidetone signal according to the reference model of each sidetone signal; based on the cross-correlation residual phase of each sidetone signal, a group delay observed quantity is calculated. According to the method, the problem that the precision of a traditional algorithm is reduced in a low signal-to-noise ratio and frequency fluctuation scene can be solved, the accuracy of interference time delay observed quantity is improved, and the high-precision measurement requirement of a detector track is met.

The application discloses a high-order overtone DOR measurement method, system, device and medium, relates to the technical field of information acquisition and processing, and comprises the following steps: performing local correlation processing on a carrier channel signal acquired through a satellite antenna to obtain interference phases in multiple first integral periods, and determining a first phase polynomial of a carrier model based on all the interference phases; determining a high-order overtone model based on the phase polynomial of the carrier model; correcting multiple high-order overtone signals acquired through the satellite antenna based on the high-order overtone model; determining a residual phase corresponding to each high-order overtone signal through the multiple corrected high-order overtone signals; and determining a DOR time delay observation corresponding to each high-order overtone signal through a multi-side tone DOR time delay calculation method based on the residual phase corresponding to each high-order overtone signal. The application can realize acquisition of a DOR measurement time delay observation, and has a wide application prospect in the field of deep space interferometric measurement.

The present invention relates to a circuit and an audio system for improving the separation of each channel of an analog audio interface, wherein the circuit comprises: an audio circuit inside a headphone interface chip and an external related interface circuit; wherein the audio circuit inside the headphone interface chip comprises: an amplifier driving circuit and analog switches Rsw1-Rsw8; the reference ground of the amplifier driving circuit and the reference ground of a MICBIAS decoupling capacitor C3 are both connected to an off-chip location near the headphone interface through an analog switch; when the headphone type is determined, a connection relationship is established with an off-chip circuit by configuring the state of the on-chip analog switches Rsw1-Rsw8 according to the headphone type to achieve a correct electrical connection. The present invention can effectively improve the separation between the left and right channels of a speaker and the separation between a speaker and a microphone by optimizing the internal audio circuit of a headphone interface chip and the external related interface circuit, thereby improving sidetone and improving the quality of playback and calls.

A headset for generating a non-delayed sidetone for a user, the headset including an input for receiving a playback signal, the playback signal including respective delayed audio signals from one or more users mixed together as the playback signal, one or more users including a first user and the mixed audio signal from the first user being a delayed input audio signal; a signal remover configured to generate a first processed signal by removing the delayed audio signal for the first user from the playback signal; and a signal mixer coupled to the signal remover, the signal mixer configured to: generate a second processed signal by mixing the first processed signal with a non-delayed input audio signal from the first user, and output the second processed signal, the non-delayed input audio signal acting as a sidetone for the first user.

Disclosed is a hearing device configured to adjust a sidetone gain. The hearing device comprises an input transducer, a transceiver, a processing unit and an output transducer. The processing unit comprises a first component arranged in connection with the input transducer and the transceiver and configured to process the input signals to obtain processed input signals, a second component configured to receive the processed input signals and to apply a model to the processed input signals to determine a sidetone parameter, and a third component configured to adjust a sidetone gain of the first part of the input signal, based on the sidetone parameter, to obtain the output signal having the adjusted sidetone gain.

The utility model relates to earphone loudspeaker technical field discloses a kind of independent cavity helmet earphone loudspeaker assembly of side tone sound hole, comprising: loudspeaker back cover;Loudspeaker yoke, install in the loudspeaker back cover;Loudspeaker front cover support, with the loudspeaker yoke cooperation to form a closed independent sound cavity;Wherein, at least one sound leakage hole is set on the circumference of the loudspeaker back cover;The component further includes a set of sealing mechanism for sealing the independent sound cavity, and the sealing mechanism includes the sealing pad between the inner peripheral wall of the loudspeaker yoke and the lower side of the loudspeaker front cover support.It is positioned quickly and accurately in the utility model that sealing pad is realized by block and slot structure, and the accurate alignment of sound cavity is ensured using positioning rod and positioning seat.This scheme simplifies assembly, reduces artificial skill requirement, solves the problem of unstable performance caused by assembly error through reliable sealing, and guarantees the consistency of high-quality sound effect.

A game processing unit 110 generates an image of a space in which a player character is present. A sidetone control unit 124 has a function of controlling sidetone in a headset. The sidetone control unit 124 controls the sidetone in the headset on the basis of behavior of the player character.

The invention provides a distance measurement method and device based on a radio wave signal and a storage medium, and relates to the field of distance measurement based on wireless communication. The method comprises the following steps: generating two paths of carrier signal random codes on one side of a measurement station, sending one path of random code to a shift register for registering, modulating the other path of carrier signal by using a sine wave sidetone with a predetermined frequency, transmitting the modulated carrier signal, forwarding the modulated carrier signal by a target responder, and receiving a forwarded signal; constructing a radio wave signal attenuation model; importing the forwarding signal into the radio wave signal attenuation model, and compensating the forwarding signal according to the current weather condition to obtain a compensated forwarding signal; and the radial distance between the measuring station and the target is calculated every time the compensated forwarding signal is received. According to the method, a sidetone and pseudo-random code mixed mechanism ranging method is combined, the influence of natural weather on ranging signals is considered, and different models influenced by abnormal weather signals are constructed to improve the accuracy of ranging results.

A hearing device and a method of adjusting a sidetone gain in a hearing device are disclosed, the hearing device (100) configured to adjust a sidetone gain. A hearing device comprises an input transducer (20), a transceiver (25), a processing unit (30) and an output transducer (40). The processing unit (30) comprises: a first component (32, 2, 3, 6, 8, 9) arranged to be connected with the input transducer (20) and the transceiver (25) and configured to process the input signals (S1, S2, S3) to obtain processed input signals (S6, S7, S8); a second component (34, 4, 7, 10, 11) configured to receive the processed input signal (S6, S7, S8) and to apply a model to the processed input signal (S6, S7, S8) to determine a sidetone parameter (S12); and a third component (36) configured to adjust the sidetone gain of the first portion of the input signal (S1) based on the sidetone parameter (S12) to obtain an output signal (S13) with the adjusted sidetone gain.

The invention provides a sidetone-based noise reduction method, an active noise reduction earphone and a storage medium, the sidetone-based noise reduction method is applied to a processor of the active noise reduction earphone, the active noise reduction earphone comprises a sidetone channel and a feedback noise reduction channel, and a feedback noise reduction filter is used for filtering a feedback audio signal; the noise reduction method based on sidetone comprises the following steps: in response to opening of the sidetone channel, controlling the sidetone channel to output a collected sidetone signal to the feedback noise reduction channel; under the condition that the feedback noise reduction channel receives the sidetone signal, controlling the feedback noise reduction channel to counteract the sidetone component in the feedback audio signal based on the sidetone signal; and controlling the feedback noise reduction filter to filter the feedback audio signal offsetting the sidetone component. According to the method, when active noise reduction is carried out on the earphone, a user can hear and feel speaking sound.

The utility model discloses a convenient aviation earphone self-detection circuit, which comprises an LM385 module, a capacitor C1 is connected in parallel between a pin 1 and a pin 8 of the LM385 module, a pin 6 of the LM385 module is connected with a power supply and a capacitor C2, a pin 3 of the LM385 module is a signal input end, a pin 5 of the LM385 module is a signal output end, a pin 2 and a pin 4 of the LM385 module are grounded, and a pin 7 of the LM385 module is vacant. According to the utility model, power amplification matching is carried out according to the microphone and the earphone loudspeaker of the aviation ground earphone, the sidetone function of the aviation ground earphone in the onboard digital communication circuit board is simulated, and signals are amplified and reproduced, so that whether the earphone has faults or not is judged according to the sound emitted by the earphone; and the effect of quickly detecting the earphone is achieved.

An audio processor for generating a non-delayed sidetone for a user, the audio processor including an input for receiving a playback signal, the playback signal including respective delayed audio signals from one or more users mixed together as the playback signal, the one or more users including a first user and the mixed audio signal from the first user being a delayed input audio signal; a signal remover configured to generate a first processed signal by removing the delayed audio signal for the first user from the playback signal; and a signal mixer coupled to the signal remover, the signal mixer configured to: generate a second processed signal by mixing the first processed signal with a non-delayed input audio signal from the first user, and output the second processed signal, the non-delayed input audio signal acting as a sidetone for the first user.

A system is provided for processing audio. The system includes a headset having an audio output and a wireless receiver; and a microphone having a first audio input, a second audio input, a mixing circuit, and a wireless transmitter, the first audio input configured to receive a first audio signal and provide the first audio signal to the mixing circuit, the second audio input configured to receive a second audio signal and provide the second audio signal to the mixing circuit, the mixing circuit configured to mix the first audio signal and the second audio signal to produce a mixed signal, and the wireless transmitter configured to transmit the mixed signal to the wireless receiver with low latency.

The invention provides a resonance device and a sound box. The resonance device comprises a loudspeaker; the front cavity is arranged on the front side of the loudspeaker; the sound tube is connected with one side, far away from the loudspeaker, of the front cavity, the sound tube is communicated with the front cavity, the cross sectional area of one end, close to the front cavity, of the sound tube is a first cross sectional area, the cross sectional area of one end, far away from the front cavity, of the sound tube is a second cross sectional area, and the first cross sectional area is smaller than the second cross sectional area. The resonance device can meet the requirements of loudness improvement and miniaturization.

Aspects of the subject technology provide for generation of a self-voice signal by an electronic device that is operating in an active noise cancellation mode. In this way, during a phone call, a video conference, or while listening to audio content, a user of the electronic device may benefit from active cancellation of ambient noise while still being able to hear their own voice when they speak. In various implementations described herein, the concurrent self-voice and automatic noise cancellation features are facilitated by accelerometer-based control of sidetone and / or active noise cancellation operations.

An audio device is disclosed comprising a plurality of microphones; an output transducer configured to output a near-end audio output signal; and processor circuitry comprising a signal processor module configured to provide a far-end audio output signal and a sidetone module configured to provide a sidetone audio output signal. The signal processor module is configured to process a first audio input signal and a second audio input signal for provision of a plurality of filter parameters, wherein the sidetone module is configured to obtain first data indicative of the plurality of filter parameters and to process the first audio input signal and the second audio input signal for provision of the sidetone audio output signal using one or more filters based on the first data, and wherein the near-end audio output signal is based on the sidetone audio output signal and a far-end audio input signal.