• Go to "Library".
  • Select the video from “My Videos” or “Gallery” in which you want to adjust video - sound and music volume.
  • Select the edit icon (icon).
  • Select edit tools (icon) button.
  • Tap on audio icon (icon).
  • Select any music which you want to apply.
  • Tap on audio/music balance button (icon).
  • Here you will find options to balance and adjust between video sound and music volume.