5 Replies Latest reply: Aug 7, 2009 3:21 PM by David Harbsmeier
sailon1 Level 1 Level 1 (5 points)
In the middle of a project today, during playback, audio through Firewire deck became static, distorted, too loud. Audio meters in FCP are fine, but meters on firewire deck are pegged. Tried other projects and they have same problem. Swapped firewire cable to no avail. Switched over to my MacbookPro but rest of my regular peripherals and played the same project without the problem... so it must be something in my MacPro Tower. If I set FCP to playback audio through computer, not firewire, it plays fine.

Ideas?

Mac Book Pro 17, 2.4 ghz Core 2 Duo, 4GB RAM, Mac OS X (10.5.8), Mac Pro 8 core 2.8, 8 GB RAM, also Power Mac Dual G5 1.8 4GB RAM
  • David Harbsmeier Level 7 Level 7 (29,825 points)
    Try trashing or restoring FCP's preferences.

    -DH
  • sailon1 Level 1 Level 1 (5 points)
    David: Before posting, I deleted FCP prefs... didn't work. Then deleted about any "audio" pref I could find... still didn't work. Playback from Soundtrack Pro, thru the firewire works fine... just audio out via firewire while using FCP.

    Very frustrating. Any other thoughts?
  • David Harbsmeier Level 7 Level 7 (29,825 points)
    I've seen this issue on several IntelMac edit stations when FCP 6 was first released on through v6.0.2. Just to compare, the problem I've witnessed is that the Firewire audio out will suddenly be nothing but digital garbage; distorted, garbled, scratchy noise. Changing the audio routing to the internal speakers results in normal audio, but as soon as you change it back to Firewire (or Audio Follows Video), nothing but garbage again.

    AFAIK, trashing preferences has always worked ... keep us informed on what you find out.

    -DH
  • sailon1 Level 1 Level 1 (5 points)
    It appears your solution was correct... I must have missed a pref trying to trash them yesterday.

    This time, I trashed prefs both in the Library at the root of the boot drive, as well as the prefs in the Libary inside of the "User" folder.

    Perhaps my system or user accounts aren't set up quite correctly.

    Anyway... with trashing those this morning, the system seems "happy" once again.

    Many thanks!
  • David Harbsmeier Level 7 Level 7 (29,825 points)
    Glad you got it working again. When or if it happens again, you should only need to trash the preferences in the User's folder.

    This app will help: http://www.digitalrebellion.com/pref_man.htm

    -DH