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Table 12 Mean scores of OVRL 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 3.2 3.4 3.7 4.6
2 2 2 3 3.5
3 3 2.5 4 5
4 1 1.5 3.5 5
5 4 3.5 5 5
  1. Performance comparison of the mean scores of OVRL scale evaluated for different methods in the presence of car noise at a SNR of 5 dB.