USB Device Not Recognized Plantronics DA40

Audacity Help Forum macOS
1

Mac OS X; Leopard 10.6.8; Audacity 2.0.0

This is an old subject but I was hoping there would be new solutions. I have just purchased a Plantronics DA40 headset with USB cable.

It has excellent noise cancelling and a great mic. I can set input to this headset in Audacity and Audacity has no problem recording from it. But if I set the output to this device, and try to play back i get this message.

“Error while open sound device. Please check the output device settings and the project sample rate.”

I am listening to a recording with stereo, left and right tracks, 48000Hz. In Audacity, the headset does indeed appear, but the only option for channels is “Mono”

Is there any way to fix this?

2

The default sound standard is 44100 Music CD standard, not 48000 TV sound, but it should not make any difference. This may be a good time to Go > Utilities > Audio MIDI Setup and see if anything in there helps. The only other place to set things is Apple > System Preferences > Hardware > Sound > Output, but you can’t change anything in there.

If the headset announces itself as mono to the USB system, there isn’t a lot you can do.

The headset may have two muffs, but where does it say that it’s a stereo headphone? The web sites claim this technology is an offshoot of the telephone system and the telephone system is mono.

Koz