How to fix microphone problem on DAC?

• Ensure all cables are connected properly and plug the microphone and headphone into the corresponding ports.
• Confirm that "Fosi Audio" is in USB input mode, and note that it does not support the microphone in OPT and COA input modes.
• Make sure the headphones support microphone function, as some headphones do not. In computer settings, go to "Settings-Microphone-Allow access to your microphone" to turn on the microphone permission for the audio device.
• Set the "Record" in the computer's sound settings to "Fosi Audio". In the sound settings, go to "Record" and select "Fosi Audio".
• Try a different USB power/data cable with OTG function.
• Use a different USB port.
• Try different headphones.
• Change a different microphone/headphone adapter cable.
• Check if the volume is turned up.
• Clean the computer, as plugin interference may cause partial functionality loss.
• To check if your microphone is working properly, you can go to the Sound settings and navigate to the Input tab. From there, you can select Test your microphone and speak into the microphone. If the blue bar rises and falls as you speak, it means that your microphone is working correctly.

If you have any questions or concerns, please don't hesitate to contact support@fosiaudio.com.