The Treatment of Acoustic Defects in Recording Studio

- Oct 09, 2018-

1. Noise control:

Noise generation:

The noise in the studio comes from many sources. There are noises from outside the studio, which can be divided into two categories: one from outside the studio building, such as traffic noise from passing vehicles and airplanes; the other from inside the building, but also in recording. Noise outside the shed, such as loud voices, humming during commuting, and internal noise from the studio, mainly from air conditioning systems, lighting control systems, and studios, moving noise of the camera and walking noise of the staff Wait.

Noise propagation:

The noise is transmitted to the recording studio mainly through three ways. One is that the noise acts on the wall, the floor and the ceiling to generate vibration, and the sound energy is radiated into the recording studio. Second, the gap left by the construction, the unsealed hole, etc. The air is transmitted to the recording studio; the third is through the wall of the recording studio, the top surface, or the steel connection between the ground and the outside world through the solid sound to enter the recording studio.

Noise control:

The problem of sound insulation in the studio is mainly the surrounding walls and the windows and the doors that enter and exit.

Multi-material composite sound insulation wall (multi-damped lightweight sound insulation wall) with different sound insulation and external window seals can basically isolate the influence of external noise on the recording studio. The entrance and exit doors are made of composite national standard diaphragms.

2. Control of reverberation time:

The reverberation time is when the sound grows indoors and stabilizes, the sound source suddenly stops sounding, and the sound will decay from the steady state in the room until it is attenuated to one millionth of the original sound energy. This time is called reverberation time, which is the time required for the sound to attenuate by 60 dB. In the design of the sound collection space, the appropriate reverberation time can make the music full; the language is full, full and full of appeal. Too short reverberation time makes the sound dry and weak, too long reverberation time, the language clarity is reduced, the sound quality lacks rhythm and intensity, so in different natures and required space, you must choose a "best" reverberation time. The treatment method is mainly to effectively absorb the high, medium and low "impurity" frequencies in the sound.

 

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