发明名称 |
Improved magnitude response and temporal alignment in phase vocoder based bandwidth extension for audio signals |
摘要 |
An apparatus for generating a bandwidth extended audio signal from an input signal, comprises a patch generator for generating one or more patch signals from the input signal, wherein the patch generator is configured for performing a time stretching (1800, 1808) of subband signals from an analysis filterbank, and wherein the patch generator further comprises a phase adjuster (1806) for adjusting phases of the subband signals using a filterbank-channel dependent phase correction. |
申请公布号 |
AU2011226206(B2) |
申请公布日期 |
2013.12.19 |
申请号 |
AU20110226206 |
申请日期 |
2011.03.04 |
申请人 |
DOLBY INTERNATIONAL AB;FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
DISCH, SASCHA;NAGEL, FREDERIK;WILDE, STEPHAN;VILLEMOES, LARS;EKSTRAND, PER |
分类号 |
G10L21/02;G10L21/038 |
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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