Illustration of single-channel and multichannel enhancement of speech
B. Yegnanarayana, S. Guruprasad, S. R. M. Prasanna and S. V. Gangashetty, "Single and multichannel enhancement of distant speech using characteristics of speech production", in Proc. Third Joint Workshop on Hands-free Speech Communication and Microphone Arrays, Edinburgh, Scotland, UK, 30 May - 1 June, 2011. Download pdf
Single-channel enhancement
Example 1
Degraded speech
Source-based enhancement
Spectrum-based enhancement
Source-spectrum based enhancement
Example 2
Degraded speech
Source-based enhancement
Spectrum-based enhancement
Source-spectrum based enhancement
Multichannel enhancement
Example 1
Speech from microphone-1
Speech from microphone-2
Coherent addition of two channels of speech
Source-based enhancement
Example 2
Speech from microphone-1
Speech from microphone-2
Coherent addition of two channels of speech
Source-based enhancement
Example 3
Speech from microphone-1
Speech from microphone-2
Coherent addition of two channels of speech
Source-based enhancement