# Sound Scrubbing

Toon Boom Studio uses a process known as Sound Scrubbing to let you hear sound in real-time while you move the playback pointer forward or backwards. This is very useful for fine tuning the lip sync process.

You can scrub sounds from the Sound Element Editor or from the Timeline window. When you scrub the sound from the Timeline, all sounds present at a frame will play.

To scrub a sound from the Sound Element Editor:

1. Select the Sound element and select Element > Edit Sound. The Sound Element Editor opens.

2. In the Sound Element panel, select the waveform you want to scrub.

3. Below the Current Sound panel, select the Enable Scrubbing option. This option sets the red markers in scrub mode.

4. Drag the red playback marker and hold the left mouse button down.

You can play the sound forwards or backwards depending on the direction you drag the mouse.

5. To stop the playback, release the mouse button.

To scrub a sound from the Timeline window:

1. To scrub a sound file from the Timeline, you must turn on sound playback and scrubbing.

- Select Play > Turn Sound Playback On.
- Select Play > Turn Sound Scrubbing On.

2. Drag the red frame marker at the top of the Timeline window along to hear the sound at each frame.

| Note that there will be no sound playback if you go beyond the last drawings and images in the scene.

See Also
Lip Synching
Changing the Lip Assignment of a Sound
Trimming the Start and End of a Sound File
Fading the Sound In and Out
Swapping Drawings in an Element