The audio layer allows you to import audio from your files.
When you import a video file from the Studio, a new shot will be created with video and audio layers (for supported formats).
You can import an audio file from the interface by creating a new audio layer.
on the timeline, then on 
Add layer, then choose the Audio layer. 
Instead of controlling the opacity, the audio layer allows you to control the global sound level of the layer. 
Tap on this icon to mute the audio of the layer. Tap on 
to unmute.
The import icon allows you to import one or several audio clips in the same layer.
Learn more about import options
Tap on the record icon to record audio directly from your iPad microphone.
When the record panel is open, tap on the record icon to start recording.
Pauses the audio recording.
Prompts to rename the recording and creates a new audio clip in the timeline.
Quits the panel and discards the recording.
THE TIMELINE
Deletes the selected audio clip(s).
Duplicates the selected clip(s).
Tap on the number to access the slider to control the sound level of the selected clip(s).
Adjusting the audio level with the slider will adjust the sound of the audio clip independently from the clip keyframes and layer sound level.
Creates 2 keyframes at the beginning of the audio clip to form a fade-in transition.
Creates 2 keyframes at the end of the audio clip to form a fade-out transition. After creating a transition, you can change the position of the keyframes manually.
An audio clip can’t be moved into a drawing or video layer and a drawing sheet or video clip can’t be moved into an audio layer.
While using a bluetooth headset, the audio scrubbing might not be satisfying due to your headset’s bluetooth latency. You can adjust the latency, according to your headset, with the Bluetooth Latency slider located in the General settings.
