发明名称 |
Apparatus and Method for Calculating Bandwidth Extension Data Using a Spectral Tilt Controlled Framing |
摘要 |
An apparatus for calculating bandwidth extension data of an audio signal in a bandwidth extension system, in which a first spectral band is encoded with a first number of bits and a second spectral band different from the first spectral band is encoded with a second number of bits, the second number of bits being smaller than the first number of bits, has a controllable bandwidth extension parameter calculator for calculating bandwidth extension parameters for the second frequency band in a frame-wise manner for a sequence of frames of the audio signal. Each frame has a controllable start time instant. The apparatus additionally includes a spectral tilt detector for detecting a spectral tilt in a time portion of the audio signal and for signaling the start time instant for the individual frames of the audio signal depending on spectral tilt.
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申请公布号 |
US2011099018(A1) |
申请公布日期 |
2011.04.28 |
申请号 |
US20090740610 |
申请日期 |
2009.06.23 |
申请人 |
NEUENDORF MAX;KRAEMER ULRICH;NAGEL FREDERIK;DISCH SASCHA;WABNIK STEFAN |
发明人 |
NEUENDORF MAX;KRAEMER ULRICH;NAGEL FREDERIK;DISCH SASCHA;WABNIK STEFAN |
分类号 |
G10L19/00 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
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地址 |
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