Audio scaling

Audio scaling is the increase or decrease in the size (scale) of the waveform in a track or bus. Audio scaling allows you to make detailed edits by zooming in on the parts of the waveform closest to the zero crossing (silence) while preserving the track or bus size. By showing just the quietest parts of a clip, you can make very precise edits. You can also zoom out on the waveform.

You can change the audio scale using keyboard shortcuts.

To scale all audio tracks together

To scale all audio tracks together, follow the instructions in the following table.

Table 130.  

To do this	Do this
Increase the scale for all tracks	Press ALT+UP ARROW. Or Hold down the CTRL key and click the Vertical Zoom In button. When you hold down the CTRL key and position your cursor over the Vertical Zoom In button, your cursor looks like this:
Decrease the scale for all tracks	Press ALT+DOWN ARROW. Or Hold down the CTRL key and click the Vertical Zoom Out button. When you hold down the CTRL key and position your cursor over the Vertical Zoom Out button, your cursor looks like this:
Increase/Decrease the scale for all tracks using your mouse	Hold down the CTRL key, click the Vertical Zoom fader and drag the fader up or down. When you hold down the CTRL key and position your cursor over the Vertical Zoom fader, your cursor looks like this:
Increase to maximum scale	Hold down the CTRL and SHIFT keys and click the Vertical Zoom In button. When you hold down the SHIFT and CTRL keys and position your cursor over the Vertical Zoom In button, your cursor looks like this:
Decrease to minimum scale	Hold down the CTRL and SHIFT keys and click the Vertical Zoom Out button. When you hold down the SHIFT and CTRL keys and position your cursor over the Vertical Zoom Out button, your cursor looks like this:

To scale a single track or bus

To increase or decrease the size of an individual track’s or bus’s waveform, do one of the following:

Press CTRL+ALT+UP/DOWN ARROW keys

Select the Zoom tool, hold the SHIFT key and drag around the clip you want to zoom in on.

To undo audio scaling

Press ALT+Z.