Telefonaktiebolaget Lm Ericsson (publ)

Huawei Technologies Co., Limited

Crystal Clear Codec, LLC

Stoneridge Electronics Ab

Anisse Taleb

Stefan Bruhn

Daniel Enstroem

Ingemar Johansson

Gustaf Ullberg

Lei Miao

Zexin Liu

Manuel Briand

Jianfeng Xu

Stefan Mikael Andersson

Haiting Li

Erik Norvell

David Virette

Deming Zhang

Fengyan Qi

Yue Lang

Martin Sehlstedt

Per Fröjdh

Chen Hu

Fredrik Klas Jansson

Erlendur Karlsson

Daniel Enström

Harald Pobloth

Stefan Håkansson

Liyun Pang

Milan Gavrilovic

Patrik Sandgren

Bárbara Martín Leung

Moo Young Kim

Stefan Häkansson

Klas Fredrik Janis Jansson

Per Froejdh

Stefan Andersson

A transient detector analyzes a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals the determined transient hangover indicator to an associated audio encoder to enable proper encoding of the following frame n+1.

Transient detection with hangover indicator for encoding an audio signal

A method for encoding a high frequency signal includes determining a signal type of a high frequency signal of a current frame, smoothing and scaling time envelopes of the high frequency signal of the current frame and obtaining time envelopes of the high frequency signal of the current frame that require to be encoded when the high frequency signal of the current frame is a non-transient signal and a high frequency signal of the previous frame is a transient signal, and quantizing and encoding the time envelopes of the high frequency signal of the current frame that require to be encoded, and frequency information and signal type information of the high frequency signal of the current frame.

Method and device for encoding a high frequency signal, and method and device for decoding a high frequency signal

A vehicle controller including a driver assistance module configured to perform at least one of an automated and a semi-automated driver assistance function. The at least one of the automated and the semi-automated driver assistance function including a rated operational domain. The vehicle controller also including an image based operational domain detector including at least one channel configured to receive an image from a frame buffer and determine at least part of an operational domain of at least one camera originating the image based at least in part on the image.

Operational design domain detection for advanced driver assistance systems

A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining of an initial set of spectral coefficients representing the audio signal, and determining a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled and the initial set of spectral coefficients are bandwidth extended above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.

Adaptive transition frequency between noise fill and bandwidth extension

A method and a device for encoding a high frequency signal, and a method and a device for decoding a high frequency signal are provided, which relate to encoding and decoding technology. The method for encoding a high frequency signal includes: determining a signal type of a high frequency signal of a current frame; smoothing and scaling time envelopes of the high frequency signal of the current frame and obtaining time envelopes of the high frequency signal of the current frame that require to be encoded, if the high frequency signal of the current frame is a non-transient signal and a high frequency signal of the previous frame is a transient signal; and quantizing and encoding the time envelopes of the high frequency signal of the current frame that require to be encoded, and frequency information and signal type information of the high frequency signal of the current frame.

A transient detector () analyzes () a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals () the determined transient hangover indicator to an associated audio encoder () to enable proper encoding of the following frame n+1.

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 method and apparatus for providing signal processing coefficients for processing an input signal at a predetermined signal processing sampling rate, wherein the input signal is received at an input signal sampling rate, the method comprising the steps of computing a correlation or covariance function based on the received input signal at the input signal sampling rate to provide correlation or covariance coefficients at the input signal sampling rate, re-sampling the computed correlation or covariance coefficients having the input signal sampling rate to provide correlation or covariance coefficients at the predetermined signal processing sampling rate, and calculating the signal processing coefficients based on the correlation or covariance coefficients at the predetermined signal processing sampling rate.

Method and apparatus for providing speech coding coefficients using re-sampled coefficients

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

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Anisse Taleb