Hello Avid Community,

I'm a longtime lurker but this is my first post.  I've been having a problem

with Media Composer Software (3.0) on my Intel Mac Pro, and I haven't been

able to find any answers.  Hopefully I can find some help here.  Here's the gist:

I've got an M-Audio NRV10 firewire mixer attached to the Mac Pro, sending my audio

signal to a pair of Yamaha Studio Monitors (HS50m's).  In my system preferences the

NRV10 is selected as default for all audio input/output.

The NRV10 works flawlessly with all other applications, but with media composer, when I'm

playing a clip from the timeline/source window, the sound plays back perfectly but the

Audio Tool doesn't display any levels.  So I can monitor the audio, but am unsure of where

the digital levels are at.

I've tried a couple of different (approved and non-approved) versions of quicktime, to no avail.

I should mention that the NRV10 is connected to the Mac Pro's native firewire bus (I don't have

a separate card).  My guess is the firewire mixer needs a separate card, such as a PCIx Firewire

card by Sigg, but I'm just checking to find out if I'm not missing something more obvious.

Any help would be appreciated, cheers.

Hello Gordon, and welcome to the Forum!

Your guess is correct. Each firewire device needs to be on a different buss to work without conflicts. Also, check this version matrix to make sure you running the correct QT version. If everything checks out, you can try rebuilding the site settings files, they may have become corrupted. Quit the app, and from the settings folder, delete the following: MC State, Site_Settings, Site_Attributes. On re-launch, the system will detect the missing files and build new ones. If you have previously dragged any user settings into the site settings window, those will need to be restored after the rebuild.

Hi Larry,

Thanks for the info.  I'll add a firewire card and see if that does the trick before

I adjust the site settings.  Thanks for the information.  I'll post back here when I 

get things sorted out in case anyone else needs this info.  (I haven't been able

to find many people trying to use this mixer with MC on a Mac, so it may prove

helpful).

Cheers.

Have you tried using other firewire card?

I have very similar problem. I'm using M-Audio ProjectMix I/O, and it really doesn't work as it should. My audio tools isn't working. Signal is sent to the PMIO, and the speakers, but audio tool doesnt show level (sometimes I can see some kind of level on ch1 and ch3, ch2 and ch4 have some kind of audio spikes now and then). Also, I cant open my audio setting (audio project settings I think), when using this sound card.

When I use other firewire sound card, like TC Electronic Konnekt 8, everything works as it should.