Displaying Waveform Plots
You can use waveform plots to help you visually locate points in an audio track for editing or trimming. There are two types of waveform plots, Energy or Sample, which you select from the Timeline Fast menu.
To display audio waveforms:
| 1. | |
If you are searching for a point in a known section of the tracks, zoom
in and show more detail in the sequence to isolate a section of the
audio. With less audio to display, the system draws the waveform plot
faster.
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| 2. | |
Click the Timeline Fast Menu button, and select Sample Plot.
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The sample plot displays the entire amplitude of the audio waveform.
This is the same as the sample voltage values you would see on an
analog oscilloscope waveform.
| 3. | |
Mark IN and OUT points in the Composer monitor for the portion you
want to display.
|
 | |
Mark only the area you want to see, because the longer the marked region,
the longer it takes to display.
|
| |
Press Ctrl+period (Windows) or Command+period (Macintosh) at any
time during the redraw of the waveform plot to stop the redraw.
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| 4. | |
(Option) Maximize the visibility of your waveform display using any
of the following procedures:
|
| |
Continue to expand or shrink your view of the Timeline using the
scale bar, effectively spreading out the waveform plots to show
detailed variations in the audio levels.
|
|
| |
To enlarge the height of selected audio tracks and subsequently the
waveform displays, press Ctrl+L (Windows) or Command+L
(Macintosh).
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|
| |
To reduce the height of selected audio tracks and subsequently the
waveform displays, press Ctrl+K (Windows) or Command+K
(Macintosh).
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|
| |
To enlarge the size of the sample plot image without enlarging its
track, press Ctrl+Alt+L (Windows) or Command+Option+L
(Macintosh).
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This procedure is useful when you view detail in quiet passages.
|
| |
To reduce the size of the sample plot image without reducing its
track, press Ctrl+Alt+K (Windows) or Command+Option+K
(Macintosh).
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This procedure is useful when you view detail in loud passages.
| |
You can set the option "Show Marked Waveforms" in the Display tab of the
Timeline Settings dialog box to narrow the view of the tracks in the
Timeline. This option allows the Timeline to display faster because the
waveform is displayed only between the mark IN and the mark OUT.
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| 5. | |
Move through the audio shown in the waveform using any of the
playback methods.
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You hear sound as you track the audio visually. When the position
indicator is at the point you want in the waveform, you can mark, trim,
or perform any other function.
| |
Audio waveform plots can slow your navigation through the Timeline.
Therefore, you might want to use them selectively. To do this, you can
create a custom Timeline view, as described in Customizing Timeline
Views.
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| |
Once you have created a customized waveform view, you can select it from
the Timeline View pop-up menu when needed, and return to another view
when you are done.
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