(feature request) - automatic gain limiter

[softhack007]

How about adding something like an "automatic gain limiter" to the AudioOutput class?

I imagine it the following way:

• user does output->setGain(2.5) - or something which is a bit too high
• user does output->enableGainLimiter(true)
• during playback, the output class initially uses the gain set by users parameter.
• whenever the output sample (after Amplify) would be above/below a certain threshold - say 96% of MAX - the gain value is slightly reduced and the output sample is re-computed (i.e. repeat Amplify step).

This would be an easy way to reduce gain and avoid sound saturation. Its not a real "AGC", but a lightweight version that avoids some complications because it only reduces amplification, but never increases it.

What do you think?