I know its a bit old, but could you fix the problem?
I have a similar prob. I can choose the plantronics, but when i like to test it, it shows up "UnspecifiedError calling waveOutOpen".
Anyone an idea?
I'm running Windows 8.1 Pro 64-Bit.
Thanks!
What's your username? I want to give you beta 10 access. There are some improvements to waveout, but we also included a direct sound option which may work for you.