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Table 1 Details of recording conditions for impulse response measurement

From: Dereverberation and denoising based on generalized spectral subtraction by multi-channel LMS algorithm using a small-scale microphone array

(a) RWCP database
Array number Array type Room Angle RT60
1 Linear Echo room (panel) 150° 0.30
2 Circle Echo room (cylinder) 30° 0.38
3 Linear Tatami-floored room (S) 120° 0.47
4 Circle Tatami-floored room (S) 120° 0.47
5 Circle Tatami-floored room (L) 90° 0.60
6 Circle Tatami-floored room (L) 130° 0.60
7 Linear Conference room 50° 0.78
8 Linear Echo room (panel) 70° 1.30
(b) CENSREC-4 database
Array number Room Room size RT60 (s)  
9 Office 9.0 × 6.0 m 0.25  
10 Japanese style room 3.5 × 2.5 m 0.40  
11 Lounge 11.5 × 27.0 m 0.50  
12 Japanese style bath 1.5 × 1.0 m 0.60  
13 Living room 7.0 × 3.0 m 0.65  
14 Meeting room 7.0 × 8.5 m 0.65  
15 Elevator hall 11.5 × 6.5 m 0.75  
  1. RT60 (second), reverberation time in room; S, small; L, large