Confirm that "Allow apps to access your microphone" is turned on and verify that the toggle for your recording application is enabled. Managing Speaker and Microphone Settings Even when permissions are granted, the volume levels for input and output devices can sabotage the recording.
Fix Screen Recording Audio Missing: Check Input Source and Permissions
Input Monitoring Levels Within the audio settings of your operating system or recording software, check the input monitoring level. Selecting the Correct Audio Input Source Screen recording software usually provides a dropdown menu to choose the audio source.
This issue is especially frustrating because the visual capture often works perfectly, leading users to believe the entire process failed. Codec and Format Compatibility Once the recording is complete, the issue might shift from input to playback.
Fix Screen Recording Audio Missing by Checking Input Settings and Permissions
Loopback Audio Confusion Advanced users sometimes attempt to record system sound by selecting a "loopback" or "what U hear" option. A frequent error is selecting the wrong input, such as picking an external microphone that is not connected or a system output that captures playback audio rather than the raw sound data intended for capture.
More About Why is my screen recording not playing sound
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