发明授权
US08452605B2 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
有权
用于产生音频子带值的装置和方法以及用于产生时域音频样本的装置和方法
- 专利标题： Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
- 专利标题（中）： 用于产生音频子带值的装置和方法以及用于产生时域音频样本的装置和方法
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申请号： US12447126申请日： 2007-10-23
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公开(公告)号： US08452605B2公开(公告)日： 2013-05-28
- 发明人: Markus Schnell , Manfred Lutzky , Markus Lohwasser , Markus Schmidt , Marc Gayer , Michael Mellar , Bernd Edler , Markus Multrus , Gerald Schuller , Ralf Geiger , Bernhard Grill
- 申请人： Markus Schnell , Manfred Lutzky , Markus Lohwasser , Markus Schmidt , Marc Gayer , Michael Mellar , Bernd Edler , Markus Multrus , Gerald Schuller , Ralf Geiger , Bernhard Grill
- 申请人地址： DE Munich
- 专利权人： Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
- 当前专利权人： Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
- 当前专利权人地址： DE Munich
- 代理机构： Glenn Patent Group
- 代理商 Michael A. Glenn
- 国际申请： PCT/EP2007/009199 WO 20071023
- 国际公布： WO2008/049589 WO 20080502
- 主分类号： G10L19/00
- IPC分类号： G10L19/00 ; G10L19/14
摘要：
An embodiment of an apparatus for generating audio subband values in audio subband channels has an analysis windower for windowing a frame of time-domain audio input samples being in a time sequence extending from an early sample to a later sample using an analysis window function having a sequence of window coefficients to obtain windowed samples. The analysis window function has a first group of window coefficients and a second group of window coefficients. The first group of window coefficients is used for windowing later time-domain samples and the second group of window coefficients is used for windowing an earlier time-domain samples. The apparatus further has a calculator for calculating the audio subband values using the windowed samples.
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