Hello Jens.
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The USB headset application is working fine on 32 bit and 64 bit. Have you tried adjusting USB volume and mic level? Have you tried disconnecting all other devices from the USB ports except for the headset?
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The proper steps for operation are:
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1. Connect the USB Headset
2. Start the sBitx app
3. Start the USB Headset app
4. Press "Enable USB Mic"
5. Adjust the slider for Mic Level.
6. Press the "USB Audio ON/OFF" button
7. Adjust the USB volume slider
8. Press PTT
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- JJ
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