Table 5 WER [%] for LVCSR task with 340k bigram LM
From: Advanced acoustic modelling techniques in MP3 speech recognition
Features | Raw | 128k | 32k | 28k | 24k | 20k | 16k | 12k |
|---|---|---|---|---|---|---|---|---|
PLP_base | 23.74 | 24.5 | 24.5 | 25.57 | 25.98 | 28.19 | 38.79 | 68.57 |
PLP_adapt | 18.19 | 19.45 | 19.4 | 19.59 | 19.84 | 20.67 | 23.56 | 33.19 |
PLP_MMI | 14.25 | 14.43 | 14.55 | 14.54 | 15.21 | 16.15 | 18.57 | 25.23 |
MFCC_base | 23.72 | 25.07 | 25.13 | 26.67 | 31.75 | 38.46 | 62.45 | 91.43 |
MFCC_adapt | 18.44 | 19.06 | 19.11 | 19.92 | 20.7 | 22.51 | 28.11 | 44.82 |
MFCC_MMI | 14.22 | 14.72 | 14.92 | 15.12 | 15.82 | 17.57 | 21.48 | 31.54 |
dMFCC_base | – | 24.85 | 25.05 | 26.01 | 31.77 | 36.69 | 48.83 | 70.03 |
dMFCC_adapt | – | 18.75 | 19.01 | 19.61 | 20.32 | 21.71 | 25.17 | 34.75 |
dMFCC_MMI | – | 14.25 | 14.78 | 15.06 | 15.5 | 16.84 | 19.47 | 26.41 |