Adjust audio levels:
- Select Audio from the toolbar.
- Pinch and hold the slider controls to set the audio levels of the sources.
Replace an audio file:
- Select Audio from the toolbar.
- Tap the Replace audio button.
- Select a different audio file from your device or from cloud storage.
Remove an audio file:
- Select Audio from the toolbar.
- Tap the Delete button next to the audio file’s name.