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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