When a body camera is activated, the first 30 seconds to 2 minutes do not have audio, depending on the model. That is just how they work. When the audio starts that is usually the point where the officer physically activated the camera. Once activated, the previous 30 seconds - 2 minutes of video in the buffer/cache are permanently saved and then the microphone activated.
The surveillance camera does not appear to have any audio. The body cam audio was overlaid onto the security cam footage. This youtube channel frequently does that.
Facts.
When a body camera is activated, the first 30 seconds to 2 minutes do not have audio, depending on the model. That is just how they work. When the audio starts that is usually the point where the officer physically activated the camera. Once activated, the previous 30 seconds - 2 minutes of video in the buffer/cache are permanently saved and then the microphone activated.
The surveillance camera does not appear to have any audio. The body cam audio was overlaid onto the security cam footage. This youtube channel frequently does that.