发明名称 |
aparelho e método para calcular dados de extensão de largura de banda usando um quadro controlado por inclinação espectral |
摘要 |
<p>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.</p> |
申请公布号 |
BRPI0904958(A2) |
申请公布日期 |
2015.06.30 |
申请号 |
BR2009PI04958 |
申请日期 |
2009.06.23 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
NEUENDORF;MAX;KRAEMER;ULRICH.;NAGEL;FREDERIK.;DISCH;SASCHA.;WABNIK;STEFAN. |
分类号 |
G10L21/02 |
主分类号 |
G10L21/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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