The function of multi-function hall sound is chosen according to different modes. When designing multi-function hall, our engineers should clearly understand its use. Today, Xiaobian shares with you the debugging of multi-function hall cinema mode.

 

 

 

1. Cinema mode is relatively simple, because there is no need for too much decoration, the first principle is to restore the real motion and sound of the film.

 

 

 

2. No microphone and no return.

 

 

 

3. Audio-visual positioning and debugging of left, middle, right, left and right surroundings;

 

 

 

4. The lower limit of Ultra-Low Frequency and the upper limit of Full Frequency should not be low-cut or high-resistance as far as possible in order to restore the real movie signal. Ultra-low signal can come from the sum of left and right main channels, or can be made into stereo channel with left and right full frequency. Ultra-low signal can also be obtained from the decoder itself.

 

 

 

5. Pay attention to the filter settings in the frequency range of each speaker.

 

 

 

6. Frequency characteristics can be equalized according to cinema standards (combined with sound field testing).

 

 

 

7. The sound pressure level around the speaker can not be too far from the main amplifier, which is easily ignored. Otherwise, the surround effect is poor. Zhaoli Electronics suggests that uniform multi-point distribution be adopted in the design, which can improve the overall sound pressure level, so that the audiences close to the surround box will not have excessive sound pressure level.

 

 

 

8. Pressure limit setting. Compression ratio should not be too large, so as not to destroy the original dynamic of the film, while taking into account the security of the system;

 

 

 

9. Use noise doors carefully.

 

 

 

10. Can't do the solution of pattern.

 

 

 

Today, the multi-functional hall audio knowledge Xiaobian share here, hope Xiaobian can help you, of course, this article is only for reference, if you have a demand for multi-functional hall audio, we can cable.