aggregate devices under OSX
Posted: Sun Dec 31, 2006 12:04 am
I tried using the aggregate device function (OSX combines two or more audio devices so they are seen as one device) to get a main and a monitor output. It works! but with some limitations.
I'm using an imic and my laptops internal audio. It works well, the monitor output through the imic is a little delayed from the main output but the main problem is analysing tracks. The program slows right down and won't respond when it's finished analysing. If I then switch audio in preferences, it's fine.
Anyone have ideas about why? It's not CPU load, I've waited until all activity has stopped and the program still won't play. I realise an audio interface with multiple outputs would fix this but I want to work out why this doesn't.
My understanding of aggregate devices is that it's like audio hijack, done within the OS at the level of core audio.
I'm using an imic and my laptops internal audio. It works well, the monitor output through the imic is a little delayed from the main output but the main problem is analysing tracks. The program slows right down and won't respond when it's finished analysing. If I then switch audio in preferences, it's fine.
Anyone have ideas about why? It's not CPU load, I've waited until all activity has stopped and the program still won't play. I realise an audio interface with multiple outputs would fix this but I want to work out why this doesn't.
My understanding of aggregate devices is that it's like audio hijack, done within the OS at the level of core audio.
