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Editing audioBasic audio editing ► 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.
A. Track pane B. Clips pane C. Audio Scale Ruler
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Percentage. Shows audio scaling by percentage. For example, if the highest percentage in the Audio Scale Ruler reads 2.0%, then only the parts of the waveform which are within 2% of the zero crossing appear in the clip.
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dB. Shows audio scaling by dB. For example, if the highest dB in the Audio Scaling Ruler reads -36, then only the parts of the waveform which are 36 dB below 0 dB appear in the clip.
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Zoom Factor. Shows audio scaling by a factor. For example, if the Zoom Factor reads 10, then the waveform is zoomed in by a factor of 10.
Note: The Audio Scale Ruler display reflects the type of audio clip directly beneath it. If it is a stereo waveform, the Audio Scale Ruler appears in stereo (one for each channel). If it is a mono clip it appears in mono. Also, the Audio Scale Ruler only displays numbers when it is above a certain height. If you cannot see the Audio Scale Ruler, increase the size of your track or bus.
Table 150.  
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:
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:
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:
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:
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:
Table 151.  
Increase/decrease the scale of individual stereo or mono tracks
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In the track in which you want to change the audio scale, click in the Audio Scale Ruler and drag. Drag up to increase the audio scaling. Drag down to decrease the audio scaling.
Click the Track view View menu, point to Display and choose Show Audio Scale.

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