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Table 2 Conditions for speech recognition

From: Dereverberation and denoising based on generalized spectral subtraction by multi-channel LMS algorithm using a small-scale microphone array

Sampling frequency 16 kHz
Frame length 25 ms
Frame shift 10 ms
Acoustic model 5 states, 3 output probability left-to-right triphone HMMs
Feature space 25 dimensions with CMN (12MFCCs + Δ + Δpower)