There is no sound when viewing the video coming from the camera on a Live-View Remote or a mobile device.
The sound is not supported when viewing the movie coming from a camera on a Live-View Remote or mobile device.
To playback the video with sound, transfer the video from the camera to another device that supports playing both video and sound. For details on how to transfer the videos to another device refer to the handbook supplied with the product.
When you view the movie in the camera from a Live-View Remote or mobile device, sound is not output. To play back a movie with sound, transfer the movie from the camera to another device, such as a mobile device or computer, and play it back on the device.
NOTE: Refer to the manual for details on how to transfer movies to a mobile device or computer.