MUMBAI, India, Nov. 7 -- Intellectual Property India has published a patent application (202528104315 A) filed by Huawei Technologies Co. Ltd., Shenzhen, China, on Oct. 29, for 'multi-channel signal encoding and decoding method and codec.'
Inventor(s) include Liu, Zexin; and Miao, Lei.
The application for the patent was published on Nov. 7, under issue no. 45/2025.
According to the abstract released by the Intellectual Property India: "A multi-channel signal encoding method, a multi-channel signal decoding method, an encoder, and a decoder are provided. The encoding method includes: determining (310) a downmixed signal of a first channel signal and a second channel signal in a multi-channel signal, an initial reverberation gain parameter of the first channel signal and the second channel signal; determining (320) a target reverberation gain parameter of the first channel signal and the second channel signal based on a correlation between the first channel signal and the downmixed signal, a correlation between the second channel signal and the downmixed signal, and the initial reverberation gain parameter; and quantizing (330) the first channel signal and the second channel signal based on the downmixed signal and the target reverberation gain parameter, and writing a quantized first channel signal and a quantized second channel signal into a bitstream. Quality of a channel signal obtained after reverberation processing can be improved according to the encoding method, the decoding method, the encoder, and the decoder."
The patent application was internationally filed on Mar. 01, 2018, under International application No.PCT/CN2018/077782.
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