Table 5 The impact of changing the lower and higher cutoff frequencies of the log-mel spectrogram on the performance of each detector for normal running speech signals
From: A CNN-based approach to identification of degradations in speech signals
Detectors | flow[Hz] | fhigh[kHz] | ||||||
|---|---|---|---|---|---|---|---|---|
0 | 300 | 700 | 2500 | 4.3 | 11 | 15 | Nyquist | |
Noise | 0.95 ±0.01 | 0.92 ±0.01 | 0.94 ±0.00 | 0.91 ±0.01 | 0.99 ±0.00 | 1.00 ±0.00 | 0.99 ±0.00 | 0.95 ±0.01 |
Distortion | 1.00 ±0.00 | 1.00 ±0.00 | 0.99 ±0.00 | 0.99 ±0.00 | 0.99 ±0.01 | 1.00 ±0.00 | 0.99 ±0.00 | 1.00 ±0.00 |
Reverberation | 0.99 ±0.00 | 0.99 ±0.00 | 0.99 ±0.00 | 0.99 ±0.00 | 0.90 ±0.01 | 0.90 ±0.01 | 0.97 ±0.01 | 0.99 ±0.00 |