A minimum of Sound Transmission Class (STC) 75 construction is recommended. (Please refer to the wall construction details in the Isolation Section of our Architect's and Engineer's Manual,) A more specific recommendation of acoustic noise reduction between theatres is listed in the table below:
Octave band Noise reduction
31.5 Hz 38 dB
63 Hz 48 dB
125 Hz 52 dB
250 Hz 54 dB
500 Hz 66 dB
1000 Hz 66 dB
2000 Hz 66 dB
4000 Hz 66 dB
8000 Hz 66 dB