Table 2 The ERLE achieved by the proposed echo cancelation solution in four truck models while the engine is on
From: An acoustic echo canceller optimized for hands-free speech telecommunication in large vehicle cabins
Truck model | ERLE | ERLE (after correction for noise) | WER during DT (before and after AEC) | Total Code execution time (MATLAB) | Average processing time per buffer (DSP) |
|---|---|---|---|---|---|
FM 928 | 17.13 dB | 27.84 dB | 0.28 → 0.08 | 10.2 s | 24.2 ms |
FM 930 | 15.6 dB | 25.5 dB | 0.45 → 0.14 | 11.7 s | 25.1 ms |
FH 2099 | 23.07 dB | 49.37 dB | 0.5 → 0.12 | 12.2 s | 25.7 ms |
FH 2250 | 12.7 dB | 45.3 dB | 0.54 → 0.14 | 11.7 s | 24.1 ms |