发明名称 |
Device and method for analysing an audio signal in view of obtaining rhythm information |
摘要 |
An apparatus for analyzing an audio signal with regard to rhythm information of the audio signal comprises a filterbank for dividing the audio signal into at least two sub-band signals. Every sub-band signal is examined with regard to a periodicity of the sub-band signal to obtain rhythm raw-information of every sub-band signal. The rhythm raw-information is subjected to a quality evaluation to obtain a significance measure for every sub-band signal. The rhythm information of the audio signal will finally be established by considering the significance measure of the sub-band signal and the rhythm raw-information. This enables a more robust analysis of the audio signal, since sub-band signals, where significant rhythm information are present, are preferred compared to sub-band signals where less significant rhythm information are present, when establishing the rhythm information.
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申请公布号 |
US2004068401(A1) |
申请公布日期 |
2004.04.08 |
申请号 |
US20030467704 |
申请日期 |
2003.08.11 |
申请人 |
HERRE JURGEN;ROHDEN JAN;UHLE CHRISTIAN;CREMER MARKUS |
发明人 |
HERRE JURGEN;ROHDEN JAN;UHLE CHRISTIAN;CREMER MARKUS |
分类号 |
G10G3/04;G10H1/057;G10H1/40;G10L25/90;(IPC1-7):G10L19/00 |
主分类号 |
G10G3/04 |
代理机构 |
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地址 |
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