公开(公告)号：US20230039546A1

公开(公告)日：2023-02-09

申请号：US17711908

申请日：2022-04-01

申请人： Electronics and Telecommunications Research Institute ,  Gwangju Institute of Science and Technology

发明人： Inseon JANG ,  Seung Kwon BEACK ,  Jongmo SUNG ,  Tae Jin LEE ,  Woo-taek LIM ,  Jongwon SHIN ,  Youngju CHEON ,  Sangwook HAN ,  Soojoong HWANG

IPC分类号： G10L19/038 ,  G06N3/04

摘要： 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.

公开(公告)号：US20230230604A1

公开(公告)日：2023-07-20

申请号：US18099119

申请日：2023-01-19

申请人： Electronics and Telecommunications Research Institute ,  Gwangju Institute of Science and Technology

发明人： Inseon JANG ,  Tae Jin LEE ,  Seung Kwon BEACK ,  Jongmo SUNG ,  Woo-taek LIM ,  Byeongho CHO ,  Jongwon SHIN ,  Soojoong HWANG ,  Eunkyun LEE ,  Youngwon CHOI ,  Sangwook HAN

IPC分类号： G10L19/02 ,  G10L25/30

CPC分类号： G10L19/0204 ,  G10L25/30

摘要： A method of encoding an audio signal and an encoder and a method of decoding an audio signal and a decoder are provided. The method of encoding an audio signal includes outputting a decoded signal by using a bitstream that encodes an audio signal, separating the decoded signal into a low-band signal and a high-band signal by using a sound source separator, upsampling the low-band signal, upsampling the high-band signal, and restoring the audio signal by synthesizing the upsampled low-band signal with the upsampled high-band signal, wherein the bitstream is generated by encoding a superimposed signal in which a signal in a high frequency band of the audio signal is superimposed on a low frequency band of the audio signal.

公开(公告)号：US20220358940A1

公开(公告)日：2022-11-10

申请号：US17527351

申请日：2021-11-16

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Gwangju Institute of Science and Technology

发明人： Woo-taek LIM ,  Seung Kwon BEACK ,  Jongmo SUNG ,  Tae Jin LEE ,  Inseon JANG ,  Jong Won SHIN ,  Soojoong HWANG ,  Youngju CHEON ,  Sangwook HAN

IPC分类号： G10L19/02 ,  G10L25/21 ,  G10L25/30 ,  G06N3/04

摘要： 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.