Speech Enhancement Using Spatial Processing and Modified Excitation Source for Underwater Speech Communication

In this paper, we propose new dereverberation method for underwater speech communication. The speech signal generated by a fixed one source. Then the signal received on 9 horizontal sensor array in shallow water environment. Finally, received signals are processed dereverberation. The received signa...

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Bibliographic Details
Main Authors: Hyung-jun Ju, Se-young Kim, Jung-woo Han, Ki-man Kim, Seok-yeb Kang
Format: Conference Proceeding
Language:English
Subjects:
Additive noise
Array signal processing
beamforming
Delay effects
Dereverberation
Linear predictive coding
Log periodic antennas
LPC
Microphones
Oral communication
Sensor arrays
Speech enhancement
SRR
Underwater acoustics
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Description
Summary:In this paper, we propose new dereverberation method for underwater speech communication. The speech signal generated by a fixed one source. Then the signal received on 9 horizontal sensor array in shallow water environment. Finally, received signals are processed dereverberation. The received signals achieved delay-and-sum beamforming and then, signals calculates time delay both each signals. Next, we calculate Hilbert envelope using time delay information and LP residuals. At last, we acquire new LP residual combination using various parameters. Proposed technique shows better performance than previous dereverberation technique.
DOI:10.1109/EUC.2008.183