发明申请
US20110200198A1 Low Bitrate Audio Encoding/Decoding Scheme with Common Preprocessing
有权
具有通用预处理的低比特率音频编码/解码方案
- 专利标题： Low Bitrate Audio Encoding/Decoding Scheme with Common Preprocessing
- 专利标题（中）： 具有通用预处理的低比特率音频编码/解码方案
-
申请号： US13004453申请日： 2011-01-11
-
公开(公告)号： US20110200198A1公开(公告)日： 2011-08-18
- 发明人: Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
- 申请人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Sascha Disch , Juergen Herre , Yoshikazu Yokotani , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
- 优先权： EP08017662.1 20081008; EP09002272.4 20090218
- 主分类号： G10L19/14
- IPC分类号： G10L19/14 ; G10L21/00
摘要：
An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder has a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.