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How to check if the CCTV is recording audio?
You can tell if a CCTV camera is recording audio by checking for a tiny microphone hole on the camera housing or by reviewing the audio settings in the connected NVR, DVR or mobile app.
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Physical Inspection
- Look for a pinhole:Â Inspect the front face of the camera near the lens. A tiny, faint dot or hole usually indicates a built-in microphone. Completely solid housings typically lack audio capability.
- Check for external wires:Â Traditional wired analog setups may feature a separate audio cable or an RCA/3.5mm jack connected to an external microphone.
- Review specifications:Â Look up the exact make and model number on the manufacturer's spec sheet to confirm if an internal mic was included or supported.
Software and App Checks
- Check live view or playback: Open the system's management software or mobile app. Expanding a single camera feed to full screen often reveals an active speaker or unmuted audio icon if sound is enabled.
- Inspect encoder settings:Â In the NVR or DVR main menu under camera management or encode settings, check if audio encoding is turned on for both the main stream and substream channels