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公开(公告)号：US20190385621A1
公开(公告)日：2019-12-19
申请号：US16557238
申请日：2019-08-30
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Kwangwoon University Industry-Academic Collaboration Foundation
发明人： Tae Jin LEE , Seung-Kwon BAEK , Min Je KIM , Dae Young JANG , Jeongil SEO , Kyeongok KANG , Jin-Woo HONG , Hochong PARK , Young-Cheol PARK
IPC分类号： G10L19/008 , G10L19/02 , G10L19/12 , G10L19/20 , G10L19/04
摘要： Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
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公开(公告)号：US20210005209A1
公开(公告)日：2021-01-07
申请号：US16814103
申请日：2020-03-10
申请人： Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation
发明人： Seung Kwon BEACK , Jongmo SUNG , Mi Suk LEE , Tae Jin LEE , Hochong PARK
IPC分类号： G10L19/02 , G10L19/032 , G10L21/038 , G06N3/04
摘要： Disclosed are a method of encoding a high band of an audio, a method of decoding a high band of an audio, and an encoder and a decoder for performing the methods. The method of decoding a high band of an audio, the method performed by a decoder, includes identifying a parameter extracted through a first neural network, identifying side information extracted through a second neural network, and restoring a high band of an audio by applying the parameter and the side information to a third neural network.
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公开(公告)号：US20170345435A1
公开(公告)日：2017-11-30
申请号：US15618689
申请日：2017-06-09
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Kwangwoon University Industry-Academic Collaboration Foundation
发明人： Tae Jin LEE , Seung-Kwon BAEK , Min Je KIM , Dae Young JANG , Jeongil SEO , Kyeongok KANG , Jin-Woo HONG , Hochong PARK , Young-cheol PARK
IPC分类号： G10L19/12 , G10L19/008 , G10L19/20 , G10L19/22
CPC分类号： G10L19/12 , G10L19/008 , G10L19/02 , G10L19/20 , G10L19/22 , G11C2207/16
摘要： Provided are an apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; and a bitstream generator to generate a bitstream using an output signal of the first conversion encoder and an output signal of the LPC encoder.
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公开(公告)号：US20240119948A1
公开(公告)日：2024-04-11
申请号：US18212364
申请日：2023-06-21
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Kwangwoon University Industry-Academic Collaboration Foundation
发明人： Tae Jin LEE , Seung-Kwon BAEK , Min Je KIM , Dae Young JANG , Jeongil SEO , Kyeongok KANG , Jin-Woo HONG , Hochong PARK , Young-Cheol PARK
IPC分类号： G10L19/008 , G10L19/02 , G10L19/04 , G10L19/12 , G10L19/20
摘要： Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
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公开(公告)号：US20190074022A1
公开(公告)日：2019-03-07
申请号：US16179120
申请日：2018-11-02
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
发明人： Tae Jin LEE , Seung-Kwon BAEK , Min Je KIM , Dae Young JANG , Jeongil SEO , Kyeongok KANG , Jin-Woo HONG , Hochong PARK , Young-cheol PARK
IPC分类号： G10L19/12
CPC分类号： G10L19/12 , G10L19/008 , G10L19/02 , G10L19/20 , G10L19/22 , G11C2207/16
摘要： Provided are an apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; and a bitstream generator to generate a bitstream using an output
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公开(公告)号：US20200349959A1
公开(公告)日：2020-11-05
申请号：US16843649
申请日：2020-04-08
申请人： Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation
发明人： Hochong PARK , Seung Kwon BEACK , Jongmo SUNG , Seong-Hyeon SHIN , Mi Suk LEE , Tae Jin LEE , Jin Soo CHOI
IPC分类号： G10L19/032 , G10L25/18 , G10L25/21 , G06N3/08 , G06N20/00
摘要： An inventive concept relates to an audio coding method to which CNN-based frequency spectrum recovery is applied. An inventive concept transmits a part of frequency spectral coefficients generated in transform coding to a decoder and the decoder recovers the frequency spectral coefficient not transmitted. Furthermore, the signs of frequency spectral coefficient are transmitted from an encoder to the decoder depending on a sign transmission rule.
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公开(公告)号：US20200349958A1
公开(公告)日：2020-11-05
申请号：US16925946
申请日：2020-07-10
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Kwangwoon University Industry-Academic Collaboration Foundation
发明人： Tae Jin LEE , Seung-Kwon BAEK , Min Je KIM , Dae Young JANG , Jeongil SEO , Kyeongok KANG , Jin-Woo HONG , Hochong PARK , Young-Cheol PARK
IPC分类号： G10L19/008 , G10L19/02 , G10L19/04 , G10L19/20 , G10L19/12
摘要： Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate ; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
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公开(公告)号：US20170337929A1
公开(公告)日：2017-11-23
申请号：US15669262
申请日：2017-08-04
发明人： Seung Kwon BEACK , Tae Jin LEE , Min Je KIM , Kyeongok KANG , Dae Young JANG , Jin Woo HONG , Jeongil SEO , Chieteuk AHN , Hochong PARK , Young-cheol PARK
IPC分类号： G10L19/087 , G10L19/26
CPC分类号： G10L19/087 , G10L19/125 , G10L19/22 , G10L19/26
摘要： Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).
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公开(公告)号：US20240105194A1
公开(公告)日：2024-03-28
申请号：US18529830
申请日：2023-12-05
发明人： Seung Kwon BEACK , Tae Jin LEE , Min Je KIM , Kyeongok KANG , Dae Young JANG , Jin Woo HONG , Jeongil SEO , Chieteuk AHN , Hochong PARK , Young-Cheol PARK
IPC分类号： G10L19/087 , G10L19/125 , G10L19/22 , G10L19/26
CPC分类号： G10L19/087 , G10L19/125 , G10L19/22 , G10L19/26
摘要： Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).
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公开(公告)号：US20220406320A1
公开(公告)日：2022-12-22
申请号：US17895233
申请日：2022-08-25
发明人： Seung Kwon BEACK , Tae Jin LEE , Min Je KIM , Kyeongok KANG , Dae Young JANG , Jin Woo HONG , Jeongil SEO , Chieteuk AHN , Hochong PARK , Young-Cheol PARK
IPC分类号： G10L19/087 , G10L19/22 , G10L19/125 , G10L19/26
摘要： Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).
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