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Table 10 Environment conditions for CENSREC-4 data acquisition

From: Single-channel dereverberation by feature mapping using cascade neural networks for robust distant speaker identification and speech recognition

Room

Test set

Room size

Mic. distance

Reverb. time (T 60 )

Ambient noise (dBA)

Office

A/D

9.0 × 6.0 m

0.5 m

0.25 s

36.5 dB

Elevator hall

A

11.5 × 6.5 m

2.0 m

0.75 s

39.0 dB

In car

A/D

Middle-sized sedan

0.4 m

0.05 s

32.0 dB

Living room

A

7.0 × 3.0 m

0.5 m

0.65 s

34.0 dB

Lounge

B/D

11.5 × 27.0 m

0.5 m

0.50 s

52.5 dB

Japanese-style room

B

3.5 × 2.5 m

2.0 m

0.40 s

30.0 dB

Meeting room

B/D

7.0 × 8.5 m

0.5 m

0.65 s

48.5 dB

Japanese-style bath

B

1.5 × 1.0 m

0.3 m

0.60 s

29.5 dB