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I've got volume in my implementation. Too much hurricane force volume. Though, the consistent problem is the volume is blasting when I create a ambient or channel mixer. (not a point or volumetric source. eg. calm breeze sound) I set the level on the mixer and nothing seems to happen. I'd like to set the volume lower. Though, on the spatial mixer, if I set the gain, rolloff and direct path level on the source node ( a point or volumetric source), then the spatial mixer case appears to work and no blasting audio. I've been following the wwdc examples. ( watched it about 4 times now) It appears I should not use the source node with the ambient and channel mixers? That seems to be only an option adding the parameter to the spatial mixer. The ambient mixer seems to only want the listener and a quaternion direction. ( I normalized to 1 ) If I set the calibration to relative spl on the sampler node but that always seems to cause blasting audio. I added the sound assets with dynamic using wav format at 32 bits and 44.1 khz. Also, are there any examples of the meta parameters? Is that how I could dynamically adjust the level? Think there was a passing reference to it in the wwdc video. Any pointers would be appreciated. I wonder if I'm making consistent assumptions on how phase works. I try to set up as much as possible before I start the engine. ( especially adding children nodes. )

When I use PHASE on my iPad, the test app is in landscape mode left or right only. But it seems like phase is in portrait mode. That is, 90 degrees off with a normal pointed at me. Is this a case where I need to use the world transform and detect view orientation notifications? Or does phase automatically handle it? I notice in simulator when I rotate the app, the speakers on the mac pro are always fixed which is what I was expecting. Or maybe its my imagination ... sounds like portrait on my device but I'm in landscape. I do have supported interface orientations set in my plist. Actually, its kind of annoying having the speakers on one side of the iPad.