Hi,
there are several techniques used to accomplish channel activation or (gating) in an microphone system.
In most systems, a microphone is gated on when the sound that it picks up is louder than some “threshold” or reference level.
When the sound level falls below the threshold, the microphone is gated off. This threshold may be fixed, adjustable, or even automatically adjustable.
2009-11-14 11:33:00 UTC in Performous
