Near End Listening Enhancement: Speech Intelligibility Improvement in Noisy Environments

Authors:

Sauert, B. ,  Vary, P.

Book Title:

Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

Publisher:

IEEE

Pages:

p. 493–496

Address:

Toulouse, France

Date:

May. 2006

ISBN:

1-424-40468-1

ISSN:

1520-6149

DOI:

10.1109/ICASSP.2006.1660065

Language:

English

Abstract

In contrast to common noise reduction systems, this contribution presents a digital signal processing algorithm to improve intelligibility of clean far end speech for the near end listener who is located in an environment with background noise. Since the noise reaches the ears of the near end listener directly and therefore can hardly be influenced, a sensible option is to manipulate the far end speech. The proposed algorithm raises the average speech spectrum over the average noise spectrum and takes precautions to prevent hearing damage. Informal listening tests and the Speech Intelligibility Index indicate an improved speech intelligibility.

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