23 results about "Audio Signal Processor" patented technology

Embodiments of the present application provide a voice interaction method, the method comprising: collecting user voice, and inputting the user voice into a first voice model of an audio signal processor to obtain a preliminary screening confidence; when the preliminary screening confidence is greater than or equal to a preliminary screening confidence threshold, inputting the user voice into a second voice model of an application processor to obtain a target confidence; calculating, by the application processor, a sound source angle corresponding to the user voice, and determining a target confidence threshold corresponding to the sound source angle; when the target confidence is greater than or equal to the target confidence threshold, determining that the user voice is a voice instruction, and performing voice interaction in response to the voice instruction. Embodiments of the present application preliminarily screen the user voice through the first voice model of the audio signal processor, thereby reducing system power consumption, and the second voice model of the application processor can accurately determine whether the user voice is a voice instruction.

The utility model discloses a USB high-fidelity decoder with a vibration unit, which comprises an integrated board. According to the utility model, the USB assembly, the system control assembly, the Bluetooth assembly, the first motor assembly, the first vibration driving assembly, the audio signal processor assembly, the loudspeaker assembly, the second motor assembly, the second vibration driving assembly, the earphone assembly and the high-fidelity digital-to-analog conversion assembly are integrated in the integrated board, so that the integrated board forms an integral module; the module can be attached to the surface of an object such as a mobile phone and can also be embedded into a mobile phone shell, the design that sound is experienced through the touch sense of the human body is achieved, a user can feel the sound in multiple dimensions on the basis of traditional auditory sense, the overall experience of entertainment equipment is enhanced, and meanwhile brand new understanding of music / sound is achieved.

An audio signal processor for generating a two-channel audio signal, comprising: an input interface (100) for providing single-channel acoustic data describing an acoustic environment; a two-channel combiner (200) for synthesizing two-channel acoustic data from single-channel acoustic data using listener position or rotation; and a sound generator (300) for generating a two-channel audio signal from an audio signal and two-channel acoustic data, wherein the two-channel combiner (200) is configured to separate the single-channel acoustic data into at least two parts consisting of a direct sound portion and at least one of an early reflection portion and a late reverberation portion (210), and to process at least two parts individually for each part to generate two-channel acoustic data (220, 230, 240), and the two-channel combiner (200) is configured to compute two-channel acoustic data for the early reflection portion using a specular reflection portion describing a separate early reflection and a diffusion portion describing the diffusion effect within the early reflection portion (230).

A hub device includes a plurality of inputs configured to receive one or more audio signals from an audio device, a processor, and a non-transitory computer-readable storage medium storing instructions. The instructions, when executed by the processor, cause the processor to map the one or more audio signals received at the plurality of inputs to a plurality of audio channels, and generate a plurality of audio streams corresponding to the plurality of audio channels, wherein different streams of the plurality of audio streams correspond to different channels of the plurality of audio channels. The hub device further includes one or more audio outputs configured to transmit the plurality of audio streams to a plurality of wireless speakers.

An audio signal processor includes a harmonic signal generator to generate a harmonic signal that includes a signal generated by frequency scaling components of a target audio signal by a factor of k, a left audio signal generator to generate a left audio signal by convolving a head-related transfer function from a target localization position of the target audio signal to a left ear of a listener with the target audio signal, a right audio signal generator to generate a right audio signal by convolving a head-related transfer function from the target localization position to a right ear of the listener with the target audio signal, a left synthesizer to generate a left channel audio signal by synthesizing the left audio signal and the harmonic signal, and a right synthesizer to generate a right channel audio signal by synthesizing the right audio signal and the harmonic signal.

The invention discloses a method for processing an audio signal and an audio signal distortion detection system. Comprising the steps that an audio amplifier receives an audio signal output by an audio signal processor in real time, generates a first pulse width signal according to the audio signal and sends the first pulse width signal to a distortion compensation device; the distortion compensation device generates a second pulse width signal according to a preset distortion degree threshold value of the audio signal; the distortion compensation device generates a level signal according to the first pulse width signal and the second pulse width signal, and sends the level signal to the audio signal processor; the audio signal processor adjusts the strength of the audio signal according to the high-low state of the received level signal, so that the distortion degree of the audio signal is smaller than or equal to the preset distortion degree, the flexible adjustment of the distortion degree of the audio signal is realized, and the distortion degree of the audio signal can better meet the requirement; and the control precision of the audio signal is improved.

An audio signal processor for generating a 2-channel audio signal, comprising: an input interface (100) for providing single-channel acoustic data describing an acoustic environment; a 2-channel synthesizer (200) for synthesizing 2-channel acoustic data from single-channel acoustic data using listener position or rotation; and a sound generator (300) for generating a 2-channel audio signal from an audio signal and 2-channel acoustic data, wherein the 2-channel synthesizer (200) separates the single-channel acoustic data into at least two parts (210) consisting of a direct sound portion and at least one of an early reflection portion and a late reverberation portion, and generates 2-channel acoustic data for each part Audio signal processor configured to process at least two parts individually to generate (220, 230, 240), wherein a two-channel combiner (200) is configured to use the amplitude spectrum of the early reflection portion or single-channel acoustic data without the direct tone portion or late reverberation portion and a first channel noise phase spectrum to obtain the first channel of the two-channel acoustic data, and to use the amplitude spectrum of the early reflection portion or single-channel acoustic data without the direct tone portion or late reverberation portion and a second channel noise phase spectrum to calculate the two-channel diffuse portion of the early reflection portion or single-channel acoustic data without the direct tone portion or late reverberation portion.

An audio signal processor for generating a 2-channel audio signal, comprising: an input interface (100) for providing single-channel acoustic data describing an acoustic environment; a 2-channel synthesizer (200) for synthesizing 2-channel acoustic data from single-channel acoustic data using listener position or rotation; and a sound generator (300) for generating a 2-channel audio signal from an audio signal and 2-channel acoustic data, wherein the 2-channel synthesizer (200) separates the single-channel acoustic data into at least two parts (210) consisting of a direct sound portion and at least one of an early reflection portion and a late reverberation portion, and processes at least two parts individually for each part to generate 2-channel acoustic data. Audio signal processor configured such as (220, 230, 240), wherein a two-channel combiner (200) segments early reflections into multiple segments (231), determines multiple image source positions representing the source positions of reflected sound (232), associates image source positions with segments using a matching operation, the matching operation comprising: calculating the sound arrival time of each image source to the listener position; and associating the image source position with a corresponding segment having a time delay in the corresponding segment that best matches the sound arrival time of the corresponding image source position (234); and uses the image source positions associated with the segments to calculate two-channel acoustic data of direct sound.

An audio signal processor for generating a 2-channel audio signal comprises an input interface (100) for providing single-channel acoustic data describing an acoustic environment, a 2-channel synthesizer (200) for synthesizing 2-channel acoustic data from the single-channel acoustic data using listener position or rotation, and a sound generator (300) for generating a 2-channel audio signal from an audio signal and 2-channel acoustic data, wherein the 2-channel synthesizer (200) separates the single-channel acoustic data into at least two parts consisting of a direct sound portion and at least one of an early reflection portion and a late reverberation portion (210), processes at least two parts individually to generate 2-channel acoustic data for each part (220, 230, 240), determines the directivity information of the sound source with respect to the listener position and the source position or orientation of the sound source (222), and is configured to use the directivity information in the calculation of the 2-channel acoustic data of the direct sound portion (220).

An apparatus includes at least three audio sensors, at least three analog processing modules, and a processor circuit. The at least three audio sensors may be configured to generate electronic signals in response to audio sounds in an environment surrounding a vehicle. The at least three analog processing modules may be configured to process the electronic signals generated by the at least three audio sensors to generate one or more processed audio signals. The processor circuit may be configured to process the one or more processed audio signals generated by the at least three analog processing modules to determine a source direction of the audio sounds relative to the vehicle and identify a type characteristic of the audio sounds. The at least three analog processing modules generally process amplitude and pitch of the electronic signals using separate analog processing paths.

Systems and methods use a processor to obtain a signal data signatures (SDS) of a forced cough vocalizations (FCV). The processor controls a display present an instruction to a user to produce an FCV. The processor controls a recording device to record audio during the FCV so as to receive an audio signal that captures the FCV. The processor pre-processes the audio signal and outputs FCV signal data representative of the FCV. The processor uses a cough signature model to ingest the FCV signal data and output an SDS representative of isolated FCV-related signal data. The processor validates one or more SDSs by classifying and testing the SDS against SDS criteria (baseline) that establish a minimum quality7 of the SDS. Based on the SDS failing to achieve the SDS criteria, the processor deletes the SDS and controls the display to present a new instruction to the user for a new FCV.

Embodiments of the present application provide a voice interaction method and related equipment, the method comprises: collecting user voice, and inputting the user voice into a first voice model of an audio signal processor to obtain a preliminary screening confidence; when the preliminary screening confidence is greater than or equal to a preliminary screening confidence threshold, inputting the user voice into a second voice model of an application processor to obtain a target confidence; calculating the sound source angle corresponding to the user voice through the application processor to determine the target confidence threshold corresponding to the sound source angle; when the target confidence is greater than or equal to the target confidence threshold, determining that the user voice is a voice instruction, and responding to the voice instruction to perform voice interaction. Embodiments of the present application preliminarily screen the user voice through the first voice model of the audio signal processor, thereby reducing the system power consumption, and the second voice model of the application processor can accurately determine whether the user voice is a voice instruction.

A noise cancelling microphone configured to cancel ambient noise is disclosed herein. The noise cancelling microphone includes a first micro-electro-mechanical systems (MEMs) microphone coupled to a first surface of a printed circuit board (PCB), a second MEMs microphone coupled to a second surface of the PCB opposite the first surface, and an audio signal processor electrically coupled to the first MEMs microphone and the second MEMs microphone. The first MEMs microphone is configured to receive a first set of one or more sound waves approaching the noise cancelling and output a first electrical signal. The second MEMs microphone is configured to receive a second set of one or more sound waves and output a second electrical signal. The audio signal processor is configured to receive the first electrical signal and the second electrical signal, process the first electrical signal and the second electrical signal, and output a noise canceled signal.

An audio signal processor for generating a two-channel audio signal, comprising: an input interface (100) for providing single-channel acoustic data describing an acoustic environment; a two-channel synthesizer (200) for synthesizing two-channel acoustic data from single-channel acoustic data using listener position or rotation; and a sound generator (300) for generating a two-channel audio signal from an audio signal and two-channel acoustic data, wherein the two-channel synthesizer (200) synthesizes the single-channel acoustic data into at least two parts consisting of a direct sound portion and at least one of an early reflection portion and a late reverberation portion. An audio signal processor configured to separate into minutes (210), process at least two parts individually to generate two-channel acoustic data for each part (220, 230, 240), determine the separation time in single-channel acoustic data between the direct sound part and the early reflection part or between the early reflection part and the late reverberation part (601), extend at least one of the two parts of the separation time by a certain number of samples so that an overlap in the separation time is achieved (602), and window at least one of the extended parts using a specific window function that takes sample extension into account (603).

An audio signal processor for generating a two-channel audio signal, comprising: an input interface (100) for providing single-channel acoustic data describing an acoustic environment; a two-channel synthesizer (200) for synthesizing two-channel acoustic data from the single-channel acoustic data using listener position or rotation; and a sound generator (300) for generating a two-channel audio signal from an audio signal and the two-channel acoustic data, wherein the input interface (100) is configured to acquire a raw representation related to the single-channel acoustic data (150) and derive the single-channel acoustic data using the raw representation and additional data stored in or accessible by the audio signal processor (151).

Disclosed are a system and method for verifying a power amplifier of a vehicular audio system. The system includes: a TDM converter for converting an audio signal into a TDM signal; an audio signal processor for receiving the TDM signal and generating and outputting a test signal for transmitting to the power amplifier, the audio signal processor having N audio channels, N>1; a channel configurator having M configuration units, M≥N, each of the audio channels corresponding to one of the configuration units, and each of the configuration units having a selected state and a non-selected state; and a controller for determining that each of the configuration units is in the selected state or non-selected state and controlling the audio signal processor to place the TDM signal in audio channel(s) corresponding to configuration unit(s) in the selected state.

Method and system for a cochlear implant that includes receiving, by a processor, an electric audio signal; processing, by the processor, the electric audio signal, thereby providing a processed electric audio signal; receiving, by a transducer driver, the processed electric audio signal; transmitting, by the transducer driver, the processed electric audio signal to electro-acoustic transducer elements that are at least arranged within a cochlea; and vibrating at least one electro-acoustic transducer element of the electro-acoustic transducer elements in response to the at least one electro-acoustic transducer element receiving the processed electric audio signal, thereby providing a vibrating stimulus based on the processed electric audio signal.

An audio signal processor for generating a two-channel audio signal, comprising: an input interface (100) for providing single-channel acoustic data describing an acoustic environment; a two-channel combiner (200) for synthesizing two-channel acoustic data from single-channel acoustic data using listener position or rotation; and a sound generator (300) for generating a two-channel audio signal from an audio signal and two-channel acoustic data, wherein the two-channel combiner (200) separates the single-channel acoustic data into at least two parts (210) consisting of a direct sound portion and at least one of an early reflection portion and a late reverberation portion, and generates at least two parts for each portion to generate two-channel acoustic data Audio signal processor comprising two physically separated devices (901, 902), wherein the first of the two physically separated devices (901) is configured to process at least one of the direct sound portion and the early reflection portion (220, 230), and the second of the two physically separated devices (903) is configured to process at least one of the early reflection portion and the late reverberation portion (230, 240), and the first device (901) and the second device (902) are connected via a transmission interface (918, 925) and have separate power supplies (917, 924).

Systems, methods, and servers are provided. A system may include a user interface to receive audio input data from a user input, an audio input device to receive multiple audio signals of multiple audio signal types, a processor circuit and a memory including machine-readable instructions that, when executed by the processor circuit, cause the processor circuit to receive, by an artificial intelligence (AI), the user input and the audio signals that include ones of the audio signal types. The processor is further caused to generate, by a music generator model that receives the user input and the audio signals, output audio content that corresponds with the music generator model, and store the output audio content for subsequent delivery to a user.

The present application relates to an audio transmission method and apparatus, a device, a computer-readable storage medium, and a vehicle. The method is applied to a vehicle, avoids the high cost of use of a professional audio DSP signal processor, and only uses a small portion of the functions of the audio DSP signal processor, thereby reducing the cost of controlling a vehicle motor to produce sound.

An audio signal processor includes signal processing circuits provided in one-to-one correspondence with audio signal channels, wherein each of the signal processing circuits is configured to separate, from a source sound signal, a target sound signal representing a target sound, which is to be processed for enhanced sound localization, the source sound signal being an audio signal of a corresponding channel, generate a sound signal with enhanced sound localization by multiplying frequencies of the separated target sound signal by a factor of k (k is an integer of 2 or more), and synthesize the source sound signal and the sound signal with enhanced sound localization for output.