Table 6 Results for the evaluation set using an acoustic model trained with extended training data
From: Strategies for distant speech recognitionin reverberant environments
Proc. | LM | Adap. | SimData | RealData | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Room1 | Room2 | Room3 | Ave. | Room1 | Ave. | ||||||||
Near | Far | Near | Far | Near | Far | - | Near | Far | - | ||||
Clean/Headset mic | RNN | ✓ | - | - | - | - | - | - | 3.5 | - | - | 6.1 | |
Lapel mic | RNN | ✓ | - | - | - | - | - | - | - | - | - | 7.3 | |
0 - a | Distant | TRI | - | 5.0 | 5.7 | 6.3 | 11.1 | 7.2 | 11.2 | 7.8 | 25.8 | 26.5 | 26.1 |
b | ✓ | 4.5 | 5.4 | 6.1 | 9.9 | 7.0 | 10.2 | 7.2 | 19.7 | 22.1 | 20.9 | ||
c | RNN | - | 4.2 | 5.0 | 5.3 | 9.2 | 5.7 | 9.7 | 6.5 | 23.0 | 24.4 | 23.7 | |
d | ✓ | 3.8 | 4.9 | 4.9 | 8.1 | 5.6 | 8.6 | 6.0 | 18.5 | 19.9 | 19.2 | ||
I - a | WPE (1ch) | TRI | - | 4.8 | 5.4 | 6.2 | 8.8 | 6.1 | 8.6 | 6.6 | 20.3 | 20.3 | 20.3 |
b | ✓ | 4.7 | 5.0 | 5.9 | 8.2 | 5.9 | 8.1 | 6.3 | 16.8 | 17.3 | 17.0 | ||
c | RNN | - | 3.8 | 4.3 | 4.7 | 7.6 | 5.3 | 7.4 | 5.5 | 19.2 | 18.7 | 19.0 | |
d | ✓ | 3.6* | 3.9* | 4.4* | 6.6* | 4.8* | 6.8* | 5.0* | 15.2* | 16.7* | 15.9* | ||
II - a | WPE (2ch) | TRI | - | 4.9 | 5.1 | 6.0 | 7.2 | 6.0 | 7.3 | 6.1 | 18.0 | 18.1 | 18.1 |
b | ✓ | 4.6 | 4.9 | 5.8 | 6.8 | 5.8 | 6.7 | 5.8 | 14.5 | 16.0 | 15.2 | ||
c | RNN | - | 4.0 | 4.3 | 4.9 | 6.1 | 5.0 | 5.8 | 5.0 | 16.5 | 16.5 | 16.5 | |
d | ✓ | 3.7* | 4.0* | 4.4 | 5.7 | 4.7 | 5.4 | 4.6 | 13.4 | 13.1 | 13.2 | ||
III - a | II + MVDR | TRI | - | 4.9 | 5.1 | 5.8 | 6.8 | 5.7 | 6.7 | 5.8 | 15.6 | 15.9 | 15.8 |
b | ✓ | 4.6 | 4.9 | 5.4 | 6.2 | 5.6 | 6.6 | 5.5 | 12.9 | 14.2 | 13.5 | ||
c | RNN | - | 4.2 | 4.4 | 4.2 | 5.5 | 4.9 | 5.4 | 4.8 | 14.3 | 14.8 | 14.6 | |
d | ✓ | 3.9 | 4.2 | 4.1* | 5.0* | 4.5 | 5.0* | 4.4* | 11.6 | 12.8 | 12.2 | ||
IV - a | III + DOL | TRI | - | 4.8 | 5.1 | 5.6 | 6.5 | 5.8 | 6.4 | 5.7 | 15.8 | 15.9 | 15.8 |
b | ✓ | 4.7 | 5.0 | 5.4 | 6.1 | 5.6 | 6.2 | 5.5 | 12.8 | 14.0 | 13.4 | ||
c | RNN | - | 4.1 | 4.7 | 4.2 | 5.2 | 4.9 | 5.4 | 4.7 | 14.4 | 14.6 | 14.5 | |
d | ✓ | 3.7 | 4.1 | 4.3 | 5.0* | 4.4* | 5.2 | 4.4* | 11.1* | 12.7* | 11.9* | ||
V - a | WPE (8ch) | TRI | - | 4.6 | 5.1 | 5.8 | 6.5 | 5.8 | 6.8 | 5.8 | 16.7 | 17.0 | 16.9 |
b | ✓ | 4.42 | 4.9 | 5.8 | 6.2 | 5.5 | 6.5 | 5.5 | 13.5 | 13.9 | 13.7 | ||
c | RNN | - | 3.8 | 4.2 | 4.6 | 5.5 | 4.8 | 5.4 | 4.7 | 16.0 | 15.7 | 15.8 | |
d | ✓ | 3.5* | 3.9* | 4.1 | 5.0 | 4.3 | 5.3 | 4.3 | 12.7 | 13.1 | 12.9 | ||
VI - a | V + MVDR | TRI | - | 4.8 | 5.2 | 5.2 | 5.5 | 5.5 | 5.9 | 5.3 | 11.9 | 12.4 | 12.2 |
b | ✓ | 4.6 | 4.9 | 5.0 | 5.2 | 5.5 | 5.8 | 5.2 | 10.0 | 10.2 | 10.1 | ||
c | RNN | - | 4.0 | 4.2 | 3.8 | 4.3 | 4.4 | 4.8 | 4.2 | 10.4 | 11.9 | 11.1 | |
d | ✓ | 3.7 | 3.9* | 3.5* | 4.2* | 4.2* | 4.9 | 4.1* | 9.0 | 9.6 | 9.3 | ||
VII - a | VI + DOL | TRI | - | 5.0 | 5.3 | 5.2 | 5.5 | 5.7 | 5.8 | 5.4 | 11.1 | 12.3 | 11.7 |
b | ✓ | 4.8 | 4.8 | 5.0 | 5.3 | 5.6 | 5.6 | 5.2 | 9.7 | 9.9 | 9.8 | ||
c | RNN | - | 4.1 | 4.2 | 3.9 | 4.3 | 4.3 | 4.8 | 4.3 | 10.0 | 11.4 | 10.7 | |
d | ✓ | 3.9 | 4.0 | 3.7 | 4.2* | 4.3 | 4.6* | 4.1* | 8.9* | 9.3* | 9.1* | ||