发明申请
US20080162121A1 METHOD, MEDIUM, AND APPARATUS TO CLASSIFY FOR AUDIO SIGNAL, AND METHOD, MEDIUM AND APPARATUS TO ENCODE AND/OR DECODE FOR AUDIO SIGNAL USING THE SAME
审中-公开
用于分类音频信号的方法，媒体和装置，以及使用其进行音频信号的编码和/或解码的方法，媒体和装置
- 专利标题： METHOD, MEDIUM, AND APPARATUS TO CLASSIFY FOR AUDIO SIGNAL, AND METHOD, MEDIUM AND APPARATUS TO ENCODE AND/OR DECODE FOR AUDIO SIGNAL USING THE SAME
- 专利标题（中）： 用于分类音频信号的方法，媒体和装置，以及使用其进行音频信号的编码和/或解码的方法，媒体和装置
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申请号： US11964963申请日： 2007-12-27
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公开(公告)号： US20080162121A1公开(公告)日： 2008-07-03
- 发明人: Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
- 申请人： Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
- 申请人地址： KR Suwon-si
- 专利权人： Samsung Electronics Co., Ltd
- 当前专利权人： Samsung Electronics Co., Ltd
- 当前专利权人地址： KR Suwon-si
- 优先权： KR2006-136823 20061228
- 主分类号： G10L19/00
- IPC分类号： G10L19/00
摘要：
Provided are a classifying method and apparatus for an audio signal, and an encoding/decoding method and apparatus for an audio signal using the classifying method and apparatus. In the classification method, an audio signal is classified by adaptively adjusting a classification threshold for a frame of the audio signal that is to be classified according to a long-term feature of the audio signal, thereby improving a hit rate of signal classification, suppressing frequent mode switching per frame, improving noise tolerance, and providing smooth reconstruction of the audio signal.
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