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Table 1 SNR of reference HMM showing lowest WER as the SNR of test speech was varied

From: Compensation of SNR and noise type mismatch using an environmental sniffing based speech recognition solution

SNR of test speech SNR of reference HMM showing the lowest word error rate
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0 6 4 2 2
2 6 6 4 4
4 8 6 6 6
6 10 8 8 8
8 10 8 8 10
10 12 12 12 10
12 16 10 14 12
14 18 14 14 16
16 18 16 20 18
18 18 18 18 18
20 20 22 20 20
22 26 22 26 26
24 28 22 28 28
26 28 22 30 28
28 28 22 30 30
30 30 24 30 30