On 01/01/14 11:32, Chris Clepper wrote:
It's very, very easy to avoid any sort of clipping processing by using hardware with drivers that don't have any! Avid, Apogee, MOTU, RME, and many others have bit transparent OSX CoreAudio drivers.
Also, any DAC worth it's using can reconstruct far beyond 0dBFS without distortion, so hearing volume increase past -1..1 in software is not surprising. I recall the ADI 1955 and equivalent TI part putting out +12dBFS or something ridiculous, but those ain't Wolfson low power headphone codecs neither!
So it is the driver for the built-in audio output that is adding the feature/problem? I rarely use OSX these days, just an old setup with a G4 mac mini and a MOTU that hasn't been updated for years but still does its job nicely.
Simon