grimrian

Q: non linear frequency response in playback

My Imac has non linear frequency response in playback, a high frequency hump.

It is there irrespective of playback source, Itunes or a signal generator.

It may be some sort of leftover from the many sound programs and DSP I have played with.

All is now uninstalled and the PRAM reset. Still non linear frequency.

Any ideas out there?

iMac, OS X El Capitan (10.11.1)

Posted on Oct 28, 2015 12:54 PM