What happens to conference room acoustics?

Release time:

2020-01-15

Summary： The conference sound noise is too big? The conference sound appears "dada" sound? The conference sound appears "buzzing" sound? Have you ever encountered such small problems? Today, Shijiazhuang conference room audio will show you the small problems that often occur in the sound effect of the conference system!

The conference sound noise is too big? The conference sound appears "dada" sound? The conference sound appears "buzzing" sound? Have you ever encountered such small problems? Today, Shijiazhuang conference room audio will show you the small problems that often occur in the sound effect of the conference system!

1. Large noise
It affects the clarity, softness and brightness of the sound. In severe cases, it will cover up the background noise of the venue due to excessive gain, automatic gain control, impedance mismatch, etc.

2. Power interference
Poor grounding of the power supply, poor ground contact and impedance mismatch between the equipment, and the power supply of the equipment without "purification" treatment will all cause clutter interference to the audio signal and form a low-frequency AC "buzzing" sound.

3. Sound Proportional Imbalance
If the sound ratio between the main control room, the main venue and the sub-venue where the speech is made is out of balance, it will affect the balance of the remote sound of other sub-venues, resulting in a decline in the overall effect of the meeting.

4. Light interference
If the lighting lamp started intermittently by ballast is used in the meeting place, high frequency radiation will be generated when the lamp tube is excited, and the microphone and its lead wire will be connected in series, resulting in a "click" sound. If the microphone line is too close to the lamp line, there will also be a "squeak" sound.

5. The local voice howling
The principle is that the sound of the speaker is fed to the microphone, so that a positive feedback circuit is formed between the speaker and the microphone, which is mainly caused by the unreasonable placement of the microphone and the speaker in the conference room layout.

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