发明名称 |
APPARATUS AND METHOD FOR PROCESSING AN AUDIO SIGNAL FOR SPEECH ENHANCEMENT USING A FEATURE EXTRACTION |
摘要 |
An apparatus for processing an audio signal to obtain control information for a speech enhancement filter (12) comprises a feature extractor (14) for extracting at least one feature per frequency band of a plurality of frequency bands of a short-time spectral representation of a plurality of short-time spectral representations, where the at least one feature represents a spectral shape of the short-time spectral representation in the frequency band. The apparatus additionally comprises a feature combiner (15) for combining the at least one feature for each frequency band using combination parameters to obtain the control information for the speech enhancement filter for a time portion of the audio signal. The feature combiner can use a neural network regression method, which is based on combination parameters determined in a training phase for the neural network. |
申请公布号 |
CA2732723(C) |
申请公布日期 |
2016.10.11 |
申请号 |
CA20092732723 |
申请日期 |
2009.08.03 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
UHLE, CHRISTIAN;HELLMUTH, OLIVER;GRILL, BERNHARD;RIDDERBUSCH, FALKO |
分类号 |
G10L21/02;G10L25/18;G10L15/02;G10L21/0364;G10L25/03 |
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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