Research Article

Comparative Evaluation of Single-Channel MMSE-Based Noise Reduction Schemes for Speech Recognition

Table 1

Parameters values used in computer simulations.

IMCRA 𝛼 𝑆 = 0 . 8 , 𝛼 𝐷 = 0 . 9 5

Decision directed 𝛼 = 0 . 9
gSNR 𝛼 S N R = 0 . 8
OMLSA/C-OMLSA 𝐺 m i n = 1 0  dB, 𝛼 = 0 . 9 8
𝐺 s m o o t h (cepstral domain) 𝛽 𝑆 = 0 . 8 , Δ 𝑏 = 1