I am trying to use NAudio to create a multiple sound output application. We have 8 USB sound cards installed. NAudio lets me use all 8 but I can’t figure out a pattern for determining which device index is which card.
The cards will be hooked up to different hardware so it is important to make sure you know which card you are using.
I have been trying to use WMI to poll for the information but I can’t seem to locate any information that determines the order of the sound devices.
Update:
I forgot to include some information about this problem. The sound cards are all USB sound cards hooked up through a 12 port hub.
The order of devices is non deterministic for all versions of Windows. For Vista and above, the devices are typically ordered by the DSound GUID (more-or-less) so they’re effectively random.