[LAU] Level Matching

[Emanuel Rumpf]

2008/11/4 Patrick Shirkey <pshirkey at boosthardware.com>:
>
> So what the original poster wants is to add a compressor to the output
> path for amarok or whatever audio track player is being used...

I don't thinks so.

Compressors work in a small time-range and modify the
signal (in relation to some milliseconds sooner/later).
Normalisation does not change the relation
of the samples, it rather shifts the volume of all samples
equally for the whole piece (that is expected to
already have a consistent level itself)

The "on-the-fly" thing would work like this here:
pre-process the next song, compute inc/dec value i.o. to reach peak level,
adjust it, play it, pre-process next song.