- Check for a built-in microphone: Ensure the camera has an integrated microphone or an external one connected.
- Enable audio settings: In the camera’s web interface, go to “Configuration” > “Audio” and ensure that audio is enabled.
- Check NVR settings: Verify that the NVR is configured to record audio along with video.
- Test playback: During playback, ensure the volume is turned up and that the audio track is selected.
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