- Check for a built-in microphone: Confirm that the camera has an integrated microphone or that an external one is connected.
- Enable audio recording: In the camera’s web interface, navigate to “Settings” > “Audio” and ensure that audio recording is enabled.
- Verify NVR settings: Ensure the NVR is configured to record and play back audio.
- Check playback settings: During playback, ensure that audio is enabled and the volume is turned up.
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