>Then the problem is really the others not using the full dynamic range. >I would scale the others up, not the loud ones down. That would be the ideal. however I have a couple of sounds I use for notification of incoming email and appointment reminders which are quite loud, and when I then try and watch video clips from the news channels back home I have to turn up the sound, and nearly get blasted out when an email arrives midway through :) Besides this I suspect the files concerned may have audio compression to get the apparent volume up, a bit like TV adverts, and to stop really annoying everyone else I have to have the mixer volume and the hardware volume well down, to a point where they are really touchy to operate, so it would be nice to get them to a more easily adjustable level. I had noticed your wave handling stuff in the past, but never investigated it, just assumed it was designed to generate data files like those in the HAL project. Might look at those yet. May also try the Goldwave that Jinx pointed me at. Thanks anyway. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics