A spectral slit approach to doubletalk detection
A spectral slit approach to doubletalk detection
A new class of doubletalk detector based on exploiting a spectral slit is proposed. This is achieved by spectrally deleting a frequency band in the far-end signal such that when the near-end signal is present, only the near-end spectral information is present. The proposed method relies solely on the detection of speech activity period in the slit area, and significantly, it requires no estimation of the echo path. Evaluation in typical acoustic echo setups shows that the proposed method outperforms other conventional doubletalk detectors in terms of probability of miss detection even under poor echo-to-noise ratio (ENR), low echo-to-far-end ratio (EFR) conditions, and echo path change.
1074-1080
Low, S.Y.
8fd903a4-b0b0-4c1c-9cc7-c2fe87109376
Venkatesh, S.
45ce84f7-750e-4059-abae-c6cc8c11edf2
Nordholm, S.
d2441721-2cf0-4387-a95d-7cd2b956c014
March 2012
Low, S.Y.
8fd903a4-b0b0-4c1c-9cc7-c2fe87109376
Venkatesh, S.
45ce84f7-750e-4059-abae-c6cc8c11edf2
Nordholm, S.
d2441721-2cf0-4387-a95d-7cd2b956c014
Low, S.Y., Venkatesh, S. and Nordholm, S.
(2012)
A spectral slit approach to doubletalk detection.
IEEE Transactions on Audio, Speech and Language Processing, 20 (3), .
(doi:10.1109/TASL.2011.2168210).
Abstract
A new class of doubletalk detector based on exploiting a spectral slit is proposed. This is achieved by spectrally deleting a frequency band in the far-end signal such that when the near-end signal is present, only the near-end spectral information is present. The proposed method relies solely on the detection of speech activity period in the slit area, and significantly, it requires no estimation of the echo path. Evaluation in typical acoustic echo setups shows that the proposed method outperforms other conventional doubletalk detectors in terms of probability of miss detection even under poor echo-to-noise ratio (ENR), low echo-to-far-end ratio (EFR) conditions, and echo path change.
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e-pub ahead of print date: 15 September 2011
Published date: March 2012
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 368038
URI: http://eprints.soton.ac.uk/id/eprint/368038
ISSN: 1558-7916
PURE UUID: 9ce2a1f7-127c-46d6-8fa3-50725dc355db
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Date deposited: 10 Sep 2014 13:51
Last modified: 14 Mar 2024 17:40
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Author:
S.Y. Low
Author:
S. Venkatesh
Author:
S. Nordholm
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