A Statistical Analysis of Two-Channel Post-Filter Estimators in Isotropic Noise Fields
Chengshi Zheng, Hao Liu, Renhua Peng, Xiaodong Li · IEEE Transactions on Audio Speech and Language Processing · 2012
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.