How to Convert Headphone Mono Jacks to USB for VoIP
When setting up a pair of headphones or speakers with Voice over Internet Protocol (VoIP) or other audio applications, you typically insert the audio plug connected to the speakers into a compatible port on the computer. You can also use the USB port, but you must convert the audio signal streaming through the USB port into the headset using a mono audio adapter.
1). Plug the USB connector on the USB Mono Audio Adapter into the computer's USB port.
2). Insert the audio cable of the headphone or speaker into the "Audio Out" port on the USB Mono Audio Adapter. This port may have a headphone logo right next to it.
3). Turn up the volume on your headset or speakers. All speakers have a volume dial. Some headsets and USB Mono Audio Adapters also have volume keys.