Adobe AUDITION 1.5 User Manual
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ADOBE AUDITION 1.5
User Guide
To remove all or most of the lead vocals from many stereo music recordings, you can
convert a stereo waveform to mono with a Left Mix of 100% and a Right Mix of –100%.
Most vocal tracks are positioned in the middle of the stereo field in-phase, so converting the
signal so that it’s out of phase often greatly reduces or eliminates the vocal track’s level.
To create a stereo waveform with different waveforms in each channel:
1
Copy the mono waveform you want to place in the left channel.
2
Create a new file, and choose Edit > Mix Paste.
3
Select Overlap, and deselect Lock L/R. Set the left volume to 100%, set the right volume
to 0%, and click OK.
4
Copy the mono waveform you want to place in the right channel.
5
Switch back to the new file you just created, and choose Edit > Mix Paste.
6
This time, set the left volume to 0% and the right volume to 100%. Click OK.
Changing the bit depth
The bit depth of a file determines the dynamic range of the audio. For example, 8-bit
resolution provides 256 possible unique volumes, while 16-bit resolution provides 65,536
possible unique volumes. Adobe Audition supports up to 32-bit resolution.
You can raise the bit depth of a file to gain a greater dynamic range, or you can lower the
bit depth to reduce the file size. When converting to a lower bit depth, Adobe Audition
provides dithering options to help reduce noise and distortion. Although dithering intro-
duces a small amount of white noise, the result is far preferable to the increased distortion
that you would otherwise hear at low signal levels. Dithering also lets you hear sounds that
would otherwise be masked by the noise and distortion limits of 8-bit audio.
Work at the 32-bit level when processing audio, even if you plan to downsample to 16-
or 8-bit for output. You’ll achieve better results than at the 16- or 8-bit level. The only
time you may want to work at the 16- or 8-bit level is when processing a very large file on a
slow computer.
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