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Table 10 Mean scores of SIG scale for different methods in the presence of car noise at a 5-dB SNR

From: A semisoft thresholding method based on Teager energy operation on wavelet packet coefficients for enhancing noisy speech

Listener Spectral subtraction Wiener filtering MMSE Proposed method
1 3.7 3.1 4.3 4.8
2 3 2 4 3.5
3 3.5 3 3.5 5
4 1.5 1.5 3.5 5
5 3 2.5 4 5
  1. Performance comparison of the mean scores of SIG scale evaluated for different methods in the presence of car noise at a SNR of 5 dB.