The sound of a surveillance camera can be turned off in a variety of ways, depending on the brand and model of camera you are using. Here are some common methods:
Turn off through the mobile app: If you are using an EZVIZ brand surveillance camera, you can turn off the sound through the EZVIZ Cloud Video app. The specific steps include clicking "..." to the right of the device name on the "EZVIZ" tab of the mobile app, selecting "Settings", then clicking "Detection Reminder Settings" or "Smart Detection", then selecting "Device Reminder Mode", and finally clicking Silent Mode on the page where you select the sound mode.
Turn off through hardware operation: Some surveillance camera devices may be equipped with a volume adjustment knob or switch. By rotating or switching these hardware controls, you can directly control the audio input of the camera. Turning the volume knob counterclockwise can reduce the volume, while switching to the off position can directly turn off the sound function.
Turn off through software settings: Most surveillance cameras are equipped with supporting software or applications, through which you can make detailed settings and adjustments to various functions of the camera. Find the audio-related setting options in the management interface, usually under menus such as "System Settings" or "Audio Settings", and then choose to turn off the audio input of the microphone or adjust the volume of the audio output to the minimum.