There may be times when you are previewing some of the footage you have captured on your GoPro Hero 5 Black when you need the playback volume turned down or up. This feature is not well documented within the GoPro manual.

To turn down playback volume on your Hero 5 Black, simply navigate to the media playback section of your GoPro. Select the clip that you would like to play. Swipe up from the bottom and this will reveal a volume level slider. Adjust the slider either up or down to choose a more suitable playback volume. Swipe down to hide the volume slider and your clip will play at the new volume you selected.