A. 1. Check your device's audio settings to ensure the volume is turned up and not muted. 2. Restart the app and your device to reset any temporary audio glitches. 3. Test your microphone and speakers with another app to ensure they are functioning properly.

B. 4. If using external audio devices, ensure they are properly connected and compatible with the app. 5. Check the app's audio settings to see if there are any specific configurations that need to be adjusted.