Direct Recovery of Clean Speech Using a Hybrid Noise Suppression Algorithm for Robust Speech Recognition System

Table 3

Recognition results for different parts of the proposed algorithm.

	Clean	Avg 0–20	−5
CMVN	99.32	77.78	13.90
LPS	99.47	73.07	12.92
LPS + CMVN	99.07	83.30	20.78
Newton	99.20	83.83	25.65
Newton + CMVN	99.25	84.96	27.78
NLPS ( Newton + LPS + CMVN )	99.08	85.76	27.85