What are the specific contents of the acoustic design indicators for music buildings? Zhongda Consulting will answer them below.

1. Natural sound - loudness (for natural sound performances, sufficient loudness is the most basic requirement; the larger the hall, the more subjective evaluation of sound quality is affected by loudness; clarity, fullness, space sense);

2. Reverberation time;

3. Sound diffusion;

4. Sound field distribution (uniformity to avoid differences in loudness throughout the hall) Too large, or dead angle; Δp (decibel) non-uniformity value; Indicators: Halls without balconies: within the frequency range of 125-4000Hz: less than 6 decibels; halls with balconies: within the frequency range of 125-4000Hz : less than 8 decibels);

5. Frequency response (referring to the balance of the sound pressure levels of each frequency received at a certain seat in the auditorium, which is related to the purity of hearing. The index is: 63- The sound pressure level difference of each frequency within the coverage range of 8000 is less than or equal to 10 decibels);

6. Early reflection sound and sound energy ratio (clarity) (the role of early reflection sound: improve the intensity and intimacy of direct sound) sense, side reflected sound can enhance the sense of space);

7. Allowed noise level (has a great masking effect on the hearing of language and music, especially low-frequency noise; noise requirements of different music buildings Different; higher standards, concert halls, opera houses and music recording studios; secondly, multi-functional halls mainly composed of music performance halls; slightly lower standards, rehearsal halls, piano rooms, music classrooms (generally allowed noise level 25 decibels); 8 .No sound quality defects (sound quality defects are in opposition to sound diffusion and uniform sound field)

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