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- Title
Dual-Channel Cosine Function Based ITD Estimation for Robust Speech Separation.
- Authors
Xuliang Li; Zhaogui Ding; Weifeng Li; Qingmin Liao
- Abstract
In speech separation tasks, many separation methods have the limitation that the microphones are closely spaced, which means that these methods are unprevailing for phase wrap-around. In this paper, we present a novel speech separation scheme by using two microphones that does not have this restriction. The technique utilizes the estimation of interaural time difference (ITD) statistics and binary time-frequency mask for the separation of mixed speech sources. The novelties of the paper consist in: (1) the extended application of delay-and-sum beamforming (DSB) and cosine function for ITD calculation; and (2) the clarification of the connection between ideal binary mask and DSB amplitude ratio. Our objective quality evaluation experiments demonstrate the effectiveness of the proposed method.
- Subjects
SPEECH processing systems; MICROPHONES; BEAMFORMING; COSINE function; TIME-frequency analysis
- Publication
Sensors (14248220), 2017, Vol 17, Issue 6, p1447
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s17061447