Title :
A Statistical Analysis of Two-Channel Post-Filter Estimators in Isotropic Noise Fields
Author :
Zheng, Chengshi ; Liu, Hao ; Peng, Renhua ; Li, Xiaodong
Author_Institution :
Key Lab. of Noise & Vibration Res., Inst. of Acoust., Beijing, China
Abstract :
This paper derives explicit expressions of the probability density functions of the two-channel post-filter estimators in isotropic noise fields to study their statistical properties. According to the analysis results, three methods are proposed to improve the performance of the noise filed coherence (NFC)-based post-filter estimator.
Keywords :
distortion; filtering theory; probability; speech synthesis; statistical analysis; NFC-based post-filter estimator; isotropic noise fields; noise filed coherence; probability density functions; speech distortion; statistical analysis; statistical properties; two-channel post-filter estimators; Coherence; IEEE transactions; Joints; Noise; Sensors; Speech; Speech processing; Joint probability density function; mismatch; post-filter; speech enhancement;
Journal_Title :
Audio, Speech, and Language Processing, IEEE Transactions on
DOI :
10.1109/TASL.2012.2229981
