I'd like to be able to direct multiple audio streams to several devices. Such technology might be useful to the original poster as well.
Is there a way to have a half-dozen audio output devices (USB audio devices can be cheap) and configure to which output device the sound from various applications should go? I've only seen interfaces for configuring where to direct all sound from a computer. Background music could go to one device, TV audio to the TV which is displaying the TV stream, system alerts to another speaker. The original poster would need to be able to direct the output from several media player instances to corresponding audio devices.