Electronics and Telecommunications Research Institute

Gwangju Institute of Science and Technology

Youngju Cheon

Tae Jin Lee

Seung Kwon Beack

Jongmo Sung

Woo-taek Lim

Inseon Jang

Soojoong Hwang

Sangwook Han

Jongwon Shin

Jong Won Shin

An audio encoding/decoding apparatus and method using vector quantized residual error features are disclosed. An audio signal encoding method includes outputting a bitstream of a main codec by encoding an original signal, decoding the bitstream of the main codec, determining a residual error feature vector from a feature vector of a decoded signal and a feature vector of the original signal, and outputting a bitstream of additional information by encoding the residual error feature vector.

Audio encoding/decoding apparatus and method using vector quantized residual error feature

Disclosed are methods of encoding and decoding an audio signal using side information, and an encoder and a decoder for performing the methods. The method of encoding an audio signal using side information includes identifying an input signal, the input signal being an original audio signal, extracting side information from the input signal using a learning model trained to extract side information from a feature vector of the input signal, encoding the input signal, and generating a bitstream by combining the encoded input signal and the side information.

Methods of encoding and decoding audio signal using side information, and encoder and decoder for performing the methods

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Gwangju, South Korea

Youngju Cheon