Cinema auditorium reverberation time requirements generally shorter, mainly because the movie recording, already has some reverb. Volume in 3000 to 6000 cubic meters of cinemas, auditoriums full field frequency (500 ~ 1000hz) recommended desirable reverberation time (0.7 +0.1 s), the rest 500hz frequency reverberation time ratio should be as follows: 125hz 1.0 —- 1.3 250hz […]