TY - GEN
T1 - A new log-spectral amplitude estimator using the weighted Euclidean distortion measure for speech enhancement
AU - Nguyen, Anh Duc
AU - Naoe, Kensuke
AU - Takefuji, Yoshiyasu
PY - 2010
Y1 - 2010
N2 - This paper considers a perceptually motivated estimator for single-channel speech enhancement based on statistics and Bayesian estimation in the frequency domain. In detail, we propose a new speech log-spectral amplitude estimator where the cost function is the weighted Euclidean distortion measure of the speech log-spectral amplitude. That cost function is motivated by auditory masking effects of the human hearing system. The statistical assumptions used to develop the proposed estimator are the complex Gaussian distribution and independence of speech, noise discrete Fourier transform coefficients. We evaluate this estimator with speech signals contaminated by various noise sources at different input signal-to-noise ratios and find that it achieves better performance than the well-known minimum mean square error log-spectral amplitude estimator in terms of both noise reduction and speech quality.
AB - This paper considers a perceptually motivated estimator for single-channel speech enhancement based on statistics and Bayesian estimation in the frequency domain. In detail, we propose a new speech log-spectral amplitude estimator where the cost function is the weighted Euclidean distortion measure of the speech log-spectral amplitude. That cost function is motivated by auditory masking effects of the human hearing system. The statistical assumptions used to develop the proposed estimator are the complex Gaussian distribution and independence of speech, noise discrete Fourier transform coefficients. We evaluate this estimator with speech signals contaminated by various noise sources at different input signal-to-noise ratios and find that it achieves better performance than the well-known minimum mean square error log-spectral amplitude estimator in terms of both noise reduction and speech quality.
KW - Bayesian estimation
KW - Noise reduction
KW - Short-time spectral amplitude
KW - Speech enhancement
KW - Weighted Euclidean distortion measure
UR - http://www.scopus.com/inward/record.url?scp=78651254026&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78651254026&partnerID=8YFLogxK
U2 - 10.1109/EEEI.2010.5662129
DO - 10.1109/EEEI.2010.5662129
M3 - Conference contribution
AN - SCOPUS:78651254026
SN - 9781424486809
T3 - 2010 IEEE 26th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2010
SP - 675
EP - 679
BT - 2010 IEEE 26th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2010
T2 - 2010 IEEE 26th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2010
Y2 - 17 November 2010 through 20 November 2010
ER -