Mbox BIG Problem

[neofat]

Hi,

I have a huge problem with my Mbox(1), when i'm using my Protools LE 6.9 cs4 (running on a G5 Biproc 1,8 Ghz, with Panther X.3.9, core audio 6.9), some times the sound drop out, and i hear a sound like a white noise, its very noisy and when it hapens, I go to the hardware setup change the source from analogue to spdif and again to analogue, and it stop the noise. Then i can work till the same noise restart.

I think there's a probleme with the internal clock, any idea?

Thanks, and sorry for my english.

[Slim Shady]

This is something that has come up before, but I don't remember a specific fix for it.

Looking at your setup - did you let Quicktime 7 get installed along with 10.3.9? Quicktime 7 on 10.3 is a well known cause for lots of problems with PT, although I don't know that the white noise thing is one of them. You might first want to experiment with using a powered USB hub for your Mbox, that sometime clears up strange behaviour, and it's not to hard to downgrade to Quicktime 6.x should you decide to give that a shot - there's instructions on Apple's support pages on how to do the downgrade.

You should also just check out the "General Troubleshooting" thread, maybe something in there will solve the problem.

[Rivritt]

This sounds like the same thing I was encountering. I would get this after doing long form editing with FCP and/or Soundtrackpro. After finishing either, if I went to any app using the coreaudio... FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF. My solution is to toss the coreaudio pref. Yeah it still happens here and there. But at least I know now how to fix it, instead of pulling out my hair wondering what the problem is...

[Moz]

Try to update with "MBox Firmware Updater Rev 20" (http://www.digidesign.com/download/mbox/) even if the updater "said" you already have the later version. I've fix the same problem with this metod after see it sugested by a Digidesign moderator in DUC.