Dereverberation using a model for the spatial coherence of decaying reverberant sound fields in rectangular rooms

被引:0
|
作者
Nees, Sam [1 ]
Schwarz, Andreas [1 ]
Kellermann, Walter [1 ]
机构
[1] Friedrich Alexander Univ Erlangen Nurnberg EAU, Multimedia Commun & Signal Proc, Cauerstr 7, D-91058 Erlangen, Germany
来源
60TH AES INTERNATIONAL CONFERENCE ON DREAMS (DEREVERBERATION AND REVERBERATION OF AUDIO, MUSIC, AND SPEECH) | 2016年
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中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In rooms with nonuniform absorption due to different material properties, the spatial properties of the decaying reverberant sound field were found to be time-variant, violating the common assumption of a diffuse sound field. Recently, we proposed a model for the coherence of such a sound field in a rectangular room, using knowledge of the geometry and surface reflection coefficients. In this paper, we describe a coherence-based dereverberation method based on this model. We conduct an evaluation with impulse responses which were generated for rooms with non-uniform absorption, confirming that the model can be applied for speech dereverberation.
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页数:8
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