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Transactions: WSEAS TRANSACTIONS ON SIGNAL PROCESSING
Transactions ID Number: 42-571
Full Name: Suma Aswatha
Position: Ph.D. Candidate
Age: ON
Sex: Female
Address: #515, "Lakshmi Nivas",2nd Main Road, 'A' Block,2nd stage, Near Vivekananda College, Rajajinagar,Bangalore, Karnataka, Pin Code: 560055
Country: INDIA
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E-mail address: suma.aswatha@wipro.com
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Title of the Paper: Robust Pitch Extraction Using Gammatone Filter Banks for sub band Speech analysis and optimal pitch extraction for each sub band.
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Number of paper pages: 10
Abstract: Modern speech processing applications require operation on signal of interest that is contaminated by high level of noise. These situations call for a greater robustness in estimation of the speech parameters for mismatch environment and low environmental SNR level. In this paper the speech is analyzed with a Gammatone filter bank. This splits the full band speech signal s(n) into frequency bands(sub bands).and for each sub band speech signal pitch is extracted. We determine the Signal to Noise Ratio for each Sub band speech signal. Then the average of pitch periods of the highest SNR sub bands is used to obtain a optimal pitch value.
Keywords: Pitch Extraction, Gammatone filter banks, sub band, speech analysis
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