A non-uniformly-spaced multiple microphone array speech enhancement method with small aperture size is proposed and analyzed. The technique utilizes a minimum redundant array structure used in antenna array in order to prevent spatial aliasing for high frequencies and uses phase difference-based dual microphone speech enhancement techniques to implement small-microphone array. It has highly directive features from the low-frequency to high frequencies evenly, and its performance is measured with directivity index. The directivity index (DI) for the proposed approach is about 3 dB higher than that of a multiple microphone approach with the phase-based filter.
Author:
Oh, Kwang-Cheol
Affiliation:
Samsung Electronics Co., Ltd., Suwon City, Gyeong-Gi Do, Korea
AES Convention:
131 (October 2011)
Paper Number:
8482
Publication Date:
October 19, 2011
Subject:
Posters: Speech
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.