I'd like to adjust the volume of a specific audio device from the command line in OS X. All examples of this that I can find are for the active audio device using osascript, which doesn't appear to let you specify specific hardware.

I'm specifically looking to adjust the volume of something that /isn't/ the active output device, the same way I can manually do so by opening Audio MIDI Setup, selecting "USB Audio Device", and dragging the sliders.

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