Dolby Laboratories Licensing Corporation

Qingyuan Bin

Ming Wang

Lie Lu

Zhiwei Shuang

Ziyu Yang

Guiping Wang

Xuemei Yu

Libin Luo

A method for steering binauralization of audio is provided. The method comprises steps of: receiving () an audio input signal, calculating () a confidence value indicating a likelihood that a current audio frame of the audio input signal comprises binauralized audio; determining () a state signal based on the confidence value; determining () a steering signal, based on the first confidence value, the state signal and an energy value of the audio frame; and generating () an audio output signal with steered binauralization by processing the audio input signal according to the steering signal.

Steering of binauralization of audio

The present document describes a method for extracting J audio sources from I audio channels. The method includes updating a Wiener filter matrix based on a mixing matrix from a source matrix and based on a power matrix of the J audio sources. Furthermore, the method includes updating a cross-covariance matrix of the I audio channels and of the J audio sources and an auto-covariance matrix of the J audio sources, based on the updated Wiener filter matrix and based on an auto-covariance matrix of the I audio channels. In addition, the method includes updating the mixing matrix and the power matrix based on the updated cross-covariance matrix of the I audio channels and of the J audio sources, and/or based on the updated auto-covariance matrix of the J audio sources.

Audio source separation

The present document describes a method () for extracting audio sources () from audio channels (). The method () includes updating () a Wiener filter matrix based on a mixing matrix from a source matrix and based on a power matrix of the audio sources (). Furthermore, the method () includes updating () a cross-covariance matrix of the audio channels () and of the audio sources () and an auto-covariance matrix of the audio sources (), based on the updated Wiener filter matrix and based on an auto-covariance matrix of the audio channels (). In addition, the method () includes updating () the mixing matrix and the power matrix based on the updated cross-covariance matrix of the audio channels () and of the audio sources (), and/or based on the updated auto-covariance matrix of the audio sources ().

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Beijing, China

Qingyuan Bin