Experimental Acoustic Evaluation of an Auditorium

Table 4

Standard deviation of PNR (a) the source situated in S1 and (b) the source situated in S2.

(a)  

Frequency (Hz)	Average value PNR (dB)	Standard deviation PNR (dB)
125	44	2
250	49	2
500	52	2
1000	54	3
2000	59	3
4000	60	1

(b)  

Frequency (Hz)	Average value PNR (dB)	Standard deviation PNR (dB)
125	42	2
250	49	1
500	52	2
1000	53	3
2000	58	2
4000	60	1