> Sounds like a perfect application for the mic input to me. Make the volume adjuster parameters get more agressive as the ambient noise level goes up, and back off on the parameters as the ambient noise drops to zero.

Yep, that's kinda the idea. Originally I'd envisaged that it would scale all music between max volume and the noise floor. The intention was always that as you relaxed the parameters, the limit would be no distortion, so when you're stationary and just listening to music, you don't suffer. This was true with the linear scaling, I have a feeling that it's not 100% true with the logarithmic scaling because of limitations of the log/exp implementation. I'll work on that.

It would be really cool to get the value for that noise floor from a mike.

Richard.