Dafeng has successfully completed the cultural center, theater, concert hall, radio and Television Center, recording studio, gymnasium, multi-function hall, etc., which have strict acoustic requirements, viewing building and acoustic decoration engineering.

Dafeng has professional technology and talents in the field of acoustic design, which has sprung up in the field of professional, rational and rigorous acoustic decoration. To provide customers with advanced electro acoustic technology at home and abroad, show the perfect sound of nature!

Leading sound quality design

Appropriate loudness

Generally speaking, the loudness should not be lower than 60 ~ 65phon for the auditorium dominated by voice; the loudness should not be lower than 40 ~ 80phon for halls with large dynamic range, such as concert hall; in order to ensure normal listening, the sound pressure level of interference noise should be more than 10dB lower than the sound to be heard. In order to achieve the appropriate loudness, the following points should be considered:

1. Energy of sound source

2. Volume and diffusion of auditorium

3. The shape of the room

4. Natural reverberation time of hall

5. Background noise

6. Diffusion treatment of body design

7. Various types of diffusers are installed

8. Evenly arrange sound absorption materials

Appropriate reverberation time

The sound quality of the hall is very important to the reverberation time. The choice of reverberation time is suitable, which can improve the clarity and fullness of sound color.

Language clarity, that is, the degree of clear language listening, directly affects the effect of listening.

Making full use of near reflected sound

The near reflected sound helps to strengthen the direct sound, especially the reflected sound from the side wall in the hall, which plays an important role in the sense of space and sonority.

Uniform sound energy distribution

The sound energy distribution of each point in the whole hall is even, that is, the sound field is evenly distributed, which can ensure that the loudness heard by the audience in each area is basically the same.

Avoiding sound quality defects

The main defects of acoustics, such as echo and reverberation, should be avoided.