Just when I thought I wouldn’t have anything to blog about, I find a bug in Compressor. Hoorah!
Make a cluster. Doesn’t have to include other machines, but it has to be a real cluster, created in QAdministrator. Read the docs if you don’t know how to get this far.
Submit a job to the cluster using the Compressor 2.1 “Video for iPod” preset.
Listen to the silence of your missing audio track!
Audio track is fine if you submit it to “This Computer” but disappears as soon as you submit it to a real cluster. Tested on an xServe, an iMac and a Macbook.
As a minor aside though, if you want to run jobs simultaneously in Compressor (which Apple says can’t be done) take a look at the qmasterprefs command line program. Particularly this bit (using qmasterprefs -list):
-service “Compressor Processing” on instances 1 autorestart off unmanaged off
Changes the instances to whatever you want, rebuild your cluster and marvel at the simultaneous processing!