What are the reasons for no sound in dash cam playback?
3 Answers
The reasons for no sound in dash cam playback include the mute option being enabled, the FM transmission function being turned on or the transmission frequency differing from the car radio, and the recording function being turned off. Mute option enabled: There is no sound from the dash cam. The mute option is turned on, and there may be a mute setting on the settings page. Solution: Disable the mute setting and turn up the volume. FM transmission function turned on or transmission frequency differing from the car radio: Some fully functional dash cams may have sound when turned on but then lose sound. This could be due to FM being enabled. The FM transmitter adjusts the sound played by the recorder to the car audio system, and if the frequency is incorrect, there will be no sound. Solution: On the settings page, locate the FM option, confirm if it is turned on, turn it off if enabled, and match the transmission frequency to the car radio. Recording function turned off: If there is no sound when watching video playback, the recording function may be turned off. Dash cams usually have basic recording, and many people turn it off for privacy reasons. Solution: It can be turned back on in the settings interface after being turned off.
I remember one time when I drove back and wanted to check the recorded videos, I found there was no sound at all. At that moment, I wondered what was going on. Later, I realized it might be a setting issue—dash cams usually have an option to turn the sound on or off, and sometimes it gets turned off accidentally. Additionally, if the microphone is blocked by dust or a screen protector, it can't pick up any sound. Another common reason is when the memory card is full or the files are corrupted, which can cause no sound during playback. Try formatting the card or switching to a different slot. There's also the possibility of the device itself malfunctioning, like overheating damaging the microphone. I recommend doing a simple weekly cleaning of the lens and microphone area to prevent issues. These small problems may seem trivial, but they can affect the completeness of recorded events, especially in accidents where the lack of audio evidence might weaken your case. So, keeping the device clean is crucial. Once, a friend in my car had a similar issue, and after I helped him reboot and reset the settings, it worked fine again.
As someone who enjoys tinkering with car gadgets, I've found that playback issues with no sound are mostly caused by minor software or hardware glitches. For example, outdated firmware versions can cause bugs, and upgrading to the latest version usually solves the problem. Poor file format compatibility is another issue—some players don't support certain audio streams, so switching to software like VLC for playback often helps. A loose microphone connection could also be the culprit; simply unplugging and replugging or checking the interface for damage might fix it. When there's an error in reading or writing to the storage card, sound can easily be lost. In such cases, backing up the data and formatting the card is a safer approach. This also reminds me to regularly back up videos to the cloud to prevent interruptions during important moments. The car's vibrating environment can loosen devices, so I used hot glue to secure the microphone socket, which improved things significantly. These little tricks were learned through multiple debugging sessions, saving me the hassle of sending the device for repairs.
