Creating new audio files – Adobe AUDITION 1.5 User Manual
Page 92
84 CHAPTER 4
Editing Audio
Many editing tasks require that you select a precise range of a waveform. When selecting
a range, you’ll probably want to zoom in to view the waveform in more detail. (See
“Zooming” on page 17.) Adobe Audition provides a variety of ways to select audio data
precisely, such as adjusting selections to zero-crossings, finding beats, and using snapping.
(See “Selecting audio data” on page 87.)
As you edit a waveform, keep in mind that you can undo your changes until you save the
file. (See “Undoing and redoing changes” on page 22.)
Creating new audio files
The File > New command lets you create an empty audio file. Doing so is useful when you
want to paste audio into an empty file before you edit it or when you want to record audio
into a new file.
You can quickly create a new file from a selection by choosing Edit > Copy to New.
(See “Copying audio data” on page 92.)
To create a new audio file:
1
Choose File > New. Alternatively, click the New File button
in the toolbar.
2
Select a sample rate in the list, or type a custom sample rate in the text box.
The sample rate determines how many frequencies can be encoded in the audio signal.
(Higher sampling rates mean a wider bandwidth.) For more information, see “About
sample rates” on page 110.
3
Select a number of channels:
•
Mono creates a waveform with just one channel of audio information. This setting is
good for voice-only recordings.
•
Stereo creates a waveform with separate right and left channels. This setting is usually
best for music recordings. Because stereo waveforms contain twice as much data as
mono waveforms, they consume twice as much storage space.
4
Select a resolution, and click OK:
•
8-bit creates a waveform where quality is not much of a concern, but small file size is.
8-bit waveforms are usually fine for telephony applications or for embedded sounds in Web
pages. Although they tend to be noisier than their 16-bit counterparts, they’re half the size.
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