Huawei Technologies Co., Limited

Other

Tencent Technology (shenzhen) Company Limited

Crystal Clear Codec, LLC

Crystal Clear Codec Spólka Z O.o.

Deming Zhang

Haiting Li

Anisse Taleb

Jianfeng Xu

Yue Lang

David Virette

Jinliang Dai

Liang Ma

Eyal Shlomot

Canhui Huang

Jingdong Chen

Qingjie Lin

Yue Hu

Yuyang Peng

Rilin Chen

Change Liu

Lingbo Cai

Hongzheng Ke

Taleb Anisse

Embodiments of this disclosure provide a method for starting an application and a related apparatus. The method includes the following: A user terminal may acquire a configuration parameter of a target application from a data management server when a start instruction for the target application is detected. The configuration parameter includes plugin configuration information and code package configuration information. The target application can be executed by using a target code package and a locally cached target plugin.

Application starting method and related device

A multi-purpose Bluetooth interface and controller includes a microcontrol unit and at least one first microphone, the first microphone being electrically connected to the MCU and configured to collect sound signals and convert the sound signals into electrical signals that are received by the MCU; wherein the Bluetooth interface and controller further includes at least one connection port which is electrically connected to the MCU and is configured to connect an external device that includes a wired microphone, the wired microphone also being configured to collect sound signals that are received by the MCU; and the MCU encodes electrical sound signals received from the first microphone and the external wired microphone, and transmits the encoded sound signals in uplink to a mobile terminal via a Bluetooth wireless connection established between the MCU and the mobile terminal for subsequent processing by the mobile terminal.

Multipurpose bluetooth interface and controller

A method for processing an audio signal, including: sound is converted to an analog audio input signal and converted into a digital audio signal; a windowed time domain signal is obtained and then a twiddled signal is obtained; the twiddled signal is pre-rotated and then an FFT is performed; an in-place fixed rotate compensation is performed on the FFT signal and then an post-rotated is performed; a quantized signal is obtained and then wrote into a bitstream for transmitting or storing.

Signal processing method and device

A voice signal processing method and apparatus, which are used to process a voice signal collected by a microphone of a terminal in order to meet requirements of the terminal in different application modes for the voice signal generated after the processing. The method includes collecting at least two voice signals, determining a current application mode of a terminal, determining, according to the current application mode from the voice signals, voice signals corresponding to the current application mode, and performing, in a preset voice signal processing manner that matches the current application mode, beamforming processing on the corresponding voice signals.

Voice signal processing method and apparatus

An embodiment of the present invention discloses a data processing method, including: twiddling input data, so as to obtain twiddled data; pre-rotating the twiddled data by using a symmetric rotate factor, where the rotate factor is a&#xb7;W, p=0, . . . , L/2&#x2212;1, and a is a constant; performing a Fast Fourier (Fast Fourier Transform, FFT) transform of L/2 point on the pre-rotated data, where L is the length of the input data; post-rotating the data that has undergone the FFT transform by using a symmetric rotate factor, where the rotate factor is b&#xb7;W, q=0, . . . , L/2&#x2212;1, and b is a constant; and obtaining output data.

Audio signal processing method and encoder

An audio signal processing method and apparatus and a differential beamforming method and apparatus to resolve a problem that an existing audio signal processing system cannot process audio signals in multiple application scenarios at the same time. The method includes determining a super-directional differential beamforming weighting coefficient, acquiring an audio input signal and determining a current application scenario and an audio output signal, acquiring, a weighting coefficient corresponding to the current application scenario, performing super-directional differential beamforming processing on the audio input signal using the acquired weighting coefficient in order to obtain a super-directional differential beamforming signal in the current application scenario, and performing processing on the formed signal to obtain a final audio signal required by the current application scenario. By using this method, a requirement that different application scenarios require different audio signal processing manners can be met.

Audio signal processing method and apparatus and differential beamforming method and apparatus

A data processing method is disclosed, including: twiddling input data, so as to obtain twiddled data; pre-rotating the twiddled data by using a symmetric rotate factor, where the rotate factor is a&#xb7;W, p=0, . . . , L/2&#x2212;1, and a is a constant; performing a Fast Fourier (Fast Fourier Transform, FFT) transform of L/2 point on the pre-rotated data, where L is the length of the input data; post-rotating the data that has undergone the FFT transform by using a symmetric rotate factor, where the rotate factor is b&#xb7;W, q=0, . . . , L/2&#x2212;1, and b is a constant; and obtaining output data.

Data processing method and device for processing speech signal or audio signal

The invention relates to a portable electronic device, comprising: at least two directional microphones for stereo sound pickup, each one of the two directional microphones defining a direct sound direction and an opposite sound direction towards which the directional microphones are directed; and a housing comprising for each of the directional microphones a first hole and a second hole, the first hole being located at a different side of the portable electronic device than the second hole.

Portable electronic device with directional microphones for stereo recording

A sound signal processing method and apparatus are provided that relate to the audio signal processing field. The method in the present invention includes acquiring, by a mobile terminal, sound signals from a three-dimensional sound field, where at least three microphones are disposed on the mobile terminal and one microphone is configured to receive a sound signal in at least one direction; acquiring, according to the acquired sound signals, a direction of a sound source relative to the mobile terminal; and obtaining spatial audio signals according to the direction of the sound source relative to the mobile terminal and the acquired sound signals, where the spatial audio signals are used for simulating the three-dimensional sound field. The present invention is applicable to a process of collecting and processing signals in a three-dimensional sound field surrounding a terminal.

Sound signal processing method and apparatus

A speech recognition method and device are disclosed. The method includes: acquiring a text file specified by a user, and extracting a command word from the text file, to obtain a command word list; comparing the command word list with a command word library, to confirm whether the command word list includes a new command word; if the command word list includes the new command word, generating a corresponding new pronunciation dictionary; merging the new language model into a language model library; and receiving speech, and performing speech recognition on the speech according to an acoustic model, a phonation dictionary, and the language model library. Command words acquired online are closely related to online content; therefore, the number of the command words is limited and far less than the number of frequently used words.

Speech recognition method and device

The invention relates to a portable electronic device, comprising: a housing comprising at least one hole; and at least two directional microphones mounted in the housing and placed coincidentally for stereo sound pickup, each one of the microphones defining a main sound axis and each one of the two directional microphones defining a direct sound direction and a opposite sound direction which describe opposite directions of the main sound axis, wherein the at least one hole is a common hole shared between the at least two directional microphones such that the main sound axis of the at least two directional microphones are pointing through the common hole in different directions.

Portable electronic device

A DTX decision method includes: obtaining sub-band signal(s) according to an input signal; obtaining a variation of characteristic information of each of the sub-band signals; and performing DTX decision according to the variation of the characteristic information of each of the sub-band signals. With the invention, a complete and appreciate DTX decision result is obtained by making full use of the noise characteristic in the speech encoding/decoding bandwidth and using band-splitting and layered processing. As a result, the SID encoding/CNG decoding may closely follow the characteristic variation of the actual noise.

Method and device for an silence insertion descriptor frame decision based upon variations in sub-band characteristic information

A method and a device for clipping control are provided in the present invention. The method includes: updating a clipping factor according to a maximum absolute value FrameLev in a current frame signal; obtaining a clipping restoration filter according to the clipping factor; filtering the current frame signal according to the clipping restoration filter to obtain a filtered clipping restoration signal. With the method and device for clipping control provided in the present invention, whether a clipping phenomenon occurs may be automatically detected, and clipping restoration is performed, so that subjective quality of an output signal is improved.

Method and device for clipping control

The present invention discloses a signal processing method and a data processing method and apparatus. A time-domain to frequency-domain signal processing method includes: pre-processing time-domain data; pre-rotating the pre-processed data by using a rotation factor a&#xb7;W; performing a discrete Fourier transform (DFT) of N/4 points on the pre-rotated data; and post-rotating the data transformed by the DFT by using a rotation factor b&#xb7;Wto obtain frequency-domain data. A frequency-domain to time-domain signal processing method includes: twiddling frequency-domain data; pre-rotating the twiddled data by using a rotation factor c&#xb7;W; performing a DFT of N/4 points on the pre-rotated data; and post-rotating the data transformed by the DFT by using a rotation factor d&#xb7;W; and post-processing the post-rotated data to obtain time-domain data. The present invention increases the efficiency of signal processing.

Signal processing method and data processing method and apparatus

A method and an apparatus for generating a lattice vector quantizer codebook are disclosed. The method includes: storing an eigenvector set that includes amplitude vectors and/or length vectors, where the amplitude vectors and/or length vectors are different from each other and correspond to a root leader of a lattice vector quantizer; storing storage addresses of the amplitude vectors and length vectors, where the amplitude vectors and length vectors correspond to the root leader and are in the eigenvector set; and generating a lattice vector quantizer codebook according to the eigenvector set and the storage addresses.

Growing community of inventors

Shenzhen, China

Deming Zhang