公开(公告)号：WO2009066869A1

公开(公告)日：2009-05-28

申请号：PCT/KR2008/005918

申请日：2008-10-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION ,  LEE, Taejin ,  KIM, Minje ,  BEACK, Seungkwon ,  JANG, Dae-young ,  KANG, Kyeongok ,  SEO, Jeong-Il ,  HONG, Jinwoo ,  PARK, Hochong ,  KIM, Rin-Chul ,  KIM, Jeong-Geun ,  PARK, Youngcheol

Inventor： LEE, Taejin ,  KIM, Minje ,  BEACK, Seungkwon ,  JANG, Dae-young ,  KANG, Kyeongok ,  SEO, Jeong-Il ,  HONG, Jinwoo ,  PARK, Hochong ,  KIM, Rin-Chul ,  KIM, Jeong-Geun ,  PARK, Youngcheol

IPC: G01L19/00

CPC classification number: G10L19/025

Abstract: A frequency band determining method for quantization noise shaping includes checking whether audio signals obtained from low-pass filtering are transient, determining a predetermined frequency band to be applied as a frequency band to be applied for quantization noise shaping when the audio signals are not transient, and determining an extended frequency band extended more than the predetermined frequency band to be applied as a frequency band to be applied when the audio signals are transient.

Abstract translation: 用于量化噪声整形的频带确定方法包括：检查从低通滤波获得的音频信号是否是瞬态的，当音频信号不是瞬态时，确定要施加的预定频带作为要用于量化噪声整形的频带， 并且当音频信号是瞬态时，确定要施加的要被施加作为要施加的频带的预定频带的扩展频带。

公开(公告)号：WO2010008173A3

公开(公告)日：2010-02-25

申请号：PCT/KR2009003850

申请日：2009-07-14

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MINJE ,  JANG DAE YOUNG ,  KANG KYEONGOK ,  SEO JEONGIL ,  HONG JIN WOO ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

Inventor： BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MINJE ,  JANG DAE YOUNG ,  KANG KYEONGOK ,  SEO JEONGIL ,  HONG JIN WOO ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

IPC: G10L19/22

CPC classification number: G10L19/22

Abstract: A module (100) capable of appropriately selecting a linear predictive coding (LPC)-based (103) or a code excitation linear prediction (CELP)-based speech or audio encoder and a transform-based (104) audio encoder according to a feature of an input signal is a module (100) that performs as a bridge for overcoming a performance barrier between a conventional LPC-based encoder (103) and an audio encoder. Also, an integral audio encoder that provides consistent audio quality regardless of a type of the input audio signal can be designed based on the module.

Abstract translation: 一种能够根据特征适当地选择基于线性预测编码（LPC）的（103）或码激励线性预测（CELP）的语音或音频编码器和基于变换的（104）音频编码器的模块（100） 输入信号的模块（100）是作为用于克服传统的基于LPC的编码器（103）和音频编码器之间的性能障碍的桥的模块（100）。 此外，可以基于该模块来设计不考虑输入音频信号的类型而提供一致的音频质量的整体音频编码器。

公开(公告)号：WO2010008175A3

公开(公告)日：2010-03-18

申请号：PCT/KR2009003854

申请日：2009-07-14

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  LEE TAE JIN ,  BEACK SEUNG KWON ,  KIM MINJE ,  JANG DAE YOUNG ,  KANG KYEONGOK ,  HONG JIN WOO ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

Inventor： LEE TAE JIN ,  BEACK SEUNG KWON ,  KIM MINJE ,  JANG DAE YOUNG ,  KANG KYEONGOK ,  HONG JIN WOO ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

IPC: G10L19/02 ,  G10L19/12 ,  G10L19/20

CPC classification number: G10L19/20 ,  G10L19/0212 ,  G10L19/12

Abstract: Provided is an apparatus for integrally encoding and decoding a speech signal and an audio signal. An encoding apparatus for integrally encoding a speech signal and an audio signal, may include: a module selection unit (110) to analyze a characteristic of an input signal and to select a first encoding module for encoding a first frame of the input signal; a speech encoding unit (130) to encode the input signal according to a selection of the module selection unit (110) and to generate a speech bitstream; an audio encoding unit (140) to encode the input signal according to the selection of the module selection unit (110) and to generate an audio bitstream; and a bitstream generation unit (150) to generate an output bitstream from the speech encoding unit (130) or the audio encoding unit (140) according to the selection of the module selection unit (110).

Abstract translation: 提供了一种用于对语音信号和音频信号进行整体编码和解码的装置。 一种用于对语音信号和音频信号进行整体编码的编码装置，可以包括：模块选择单元，用于分析输入信号的特性，并选择用于对输入信号的第一帧进行编码的第一编码模块; 语音编码单元，用于根据所述模块选择单元的选择对所述输入信号进行编码，并生成语音比特流; 音频编码单元，用于根据模块选择单元的选择对输入信号进行编码，并生成音频比特流; 以及根据模块选择单元（110）的选择从语音编码单元（130）或音频编码单元（140）生成输出比特流的比特流生成单元（150）。