Correlation between the gain and the activity level of a microphone object in flash/flex

The microphone's gain property is default at 50 and ranges from 0 to 100, It boosts the signal from the microphone.

The microphone activityLevel property also ranges from 0 to 100, and describes the volume of the recorded mic audio.

I need to know the correlation between boosting the signal and the activity level, which does have an effect 开发者_开发问答on each other that I have tested. What does a gain of 100 mean?

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The activityLevel property defines the sensitivity of the microphone - the range of sounds it will pick up - if you want it picking up everything it can, including background noise and quiet noises, assign this property to 100. If you want it picking up only LOUD noises, turn it to 0.

The gain is the strength of the amplification of the microphone's sound - 100 is the most, 0 is the least. Turning the gain up makes sound quality deteriorate (Depending on quality of equipment), while it gets louder.

Turning gain to 100 and activityLevel 0 means you're making Loud noises louder. Gain 0, activityLevel 100 means you're picking up every sound and not amplifying it.