公开(公告)号：US20140310009A1

公开(公告)日：2014-10-16

申请号：US14354881

申请日：2012-10-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mi-Suk Lee

IPC: G10L19/26

CPC classification number: G10L19/26 ,  G10L2019/0001

Abstract: The present invention relates to a codec device and method for encoding/decoding voice and audio signals in a communication system, wherein: a fixed codebook excited signal is generated by using a pulse index for a voice signal; a first adaptive codebook excited signal is generated by using a pitch index for the voice signal; a fixed codebook signal is generated by multiplying the fixed codebook excited signal by a fixed codebook gain; a first adaptive codebook signal is generated by multiplying the first adaptive codebook excited signal by a first adaptive codebook gain; and a synthesized filter excited signal is generated by adding the fixed codebook signal and the first adaptive codebook signal.

Abstract translation: 本发明涉及一种用于在通信系统中对语音和音频信号进行编码/解码的编解码器装置和方法，其中：通过使用语音信号的脉冲索引来产生固定码本激励信号; 通过使用语音信号的音高指数来产生第一自适应码本激励信号; 通过将固定码本激励信号乘以固定码本增益来产生固定码本信号; 通过将第一自适应码本激励信号乘以第一自适应码本增益来产生第一自适应码本信号; 并且通过将固定码本信号和第一自适应码本信号相加来产生合成滤波器激励信号。

公开(公告)号：US10607624B2

公开(公告)日：2020-03-31

申请号：US16267062

申请日：2019-02-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mi-Suk Lee

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/26

Abstract: The present invention relates to a codec device and method for encoding/decoding voice and audio signals in a communication system, wherein: a fixed codebook excited signal is generated by using a pulse index for a voice signal; a first adaptive codebook excited signal is generated by using a pitch index for the voice signal; a fixed codebook signal is generated by multiplying the fixed codebook excited signal by a fixed codebook gain; a first adaptive codebook signal is generated by multiplying the first adaptive codebook excited signal by a first adaptive codebook gain; and a synthesized filter excited signal is generated by adding the fixed codebook signal and the first adaptive codebook signal.

公开(公告)号：US10199050B2

公开(公告)日：2019-02-05

申请号：US15645630

申请日：2017-07-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mi-Suk Lee

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/26

Abstract: The present invention relates to a codec device and method for encoding/decoding voice and audio signals in a communication system, wherein: a fixed codebook excited signal is generated by using a pulse index for a voice signal; a first adaptive codebook excited signal is generated by using a pitch index for the voice signal; a fixed codebook signal is generated by multiplying the fixed codebook excited signal by a fixed codebook gain; a first adaptive codebook signal is generated by multiplying the first adaptive codebook excited signal by a first adaptive codebook gain; and a synthesized filter excited signal is generated by adding the fixed codebook signal and the first adaptive codebook signal.

公开(公告)号：US09704501B2

公开(公告)日：2017-07-11

申请号：US14354881

申请日：2012-10-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mi-Suk Lee

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/26

CPC classification number: G10L19/26 ,  G10L2019/0001

Abstract: The present invention relates to a codec device and method for encoding/decoding voice and audio signals in a communication system, wherein: a fixed codebook excited signal is generated by using a pulse index for a voice signal; a first adaptive codebook excited signal is generated by using a pitch index for the voice signal; a fixed codebook signal is generated by multiplying the fixed codebook excited signal by a fixed codebook gain; a first adaptive codebook signal is generated by multiplying the first adaptive codebook excited signal by a first adaptive codebook gain; and a synthesized filter excited signal is generated by adding the fixed codebook signal and the first adaptive codebook signal.

公开(公告)号：US09251799B2

公开(公告)日：2016-02-02

申请号：US14315964

申请日：2014-06-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Mi-Suk Lee ,  Hyun-Joo Bae ,  Byung-Sun Lee

IPC: G06F15/00 ,  G10L25/00 ,  G10L19/02 ,  G10L21/02 ,  G10L25/90 ,  G10L19/00 ,  G10L19/008 ,  G10L19/24 ,  G10L19/093

CPC classification number: G10L19/008 ,  G10L19/0204 ,  G10L19/093 ,  G10L19/24

Abstract: A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio signal into a plurality of sub-bands, calculating the energy of each sub-band, selecting a predetermined number of sub-bands having a relatively large amount of energy from the sub-bands, and performing sinusoidal coding with regard to the selected sub-bands. Application of sinusoidal coding based on consideration of the amount of energy of each sub-band of the synthesized signal improves the quality of the synthesized signal more efficiently.

Abstract translation: 提供了一种使用自适应正弦编码对音频信号进行编码和解码的方法和装置。 音频信号编码方法包括以下步骤：将合成的音频信号分成多个子带，计算每个子带的能量，从子帧中选择具有相对大量能量的预定数量的子带， 并且对于所选择的子带执行正弦编码。 基于考虑合成信号的每个子带的能量量的正弦编码的应用更有效地提高了合成信号的质量。