Publications – Details

 

Robust Direction of Arrival Estimation for Speech Enhancement in Noisy Reverberant Rooms

Authors:

Thomas Lotter, Heinrich W. Löllmann, and Peter Vary

Book Title:

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

Venue:

Orlando, Florida, USA

Organization:

IEEE

Date:

May 2002

Language:

English

Abstract

Summary form only given, as follows. This paper describes an eigendecomposition based approach to estimate the direction of arrival (DOA) of speech or noise sources in a reverberant room using a microphone array. Unitary ESPRIT (estimation of signal parameters by rotational invariance techniques), a DOA estimation algorithm for narrowband signals, is applied to these wideband signals, resulting in DOA estimates for each frequency. A single estimate is then obtained by means of a histogram. The estimated DOAs of the speech source are used to enhance a noisy speech signal by means of a superdirective beamformer. Experiments in a noisy reverberant room showed a higher estimation accuracy, and thus a better speech enhancement performance, at low SNRs compared to other DOA estimation techniques.

Download of Publication

Copyright Notice

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

The following notice applies to all IEEE publications:
© IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

File