Ulead MEDIASTUDIO PRO 8, User Manual

Page: 256 / 308

256 AUDIO EDITOR
Muting a waveform
Often, when you are working with waveforms, you will want to remove part of it
without deleting the actual time it occupies (therefore silencing it). To do this, you
need to mute the waveform by clicking
Edit: Mute . After choosing this command,
only the selected area of the waveform is silenced, leaving the total duration or
length of the file unchanged.
Calibrating files recorded from different sources
Not all recording devices have the same calibration or setup. It varies sometimes
in frequency modulation and amplitude. In such cases, you may find that files
recorded from these different sources end up with different baselines (point
0 on
the amplitude scale). Most of the time, this doesn't adversely affect the overall
quality of your tracks as the differences are minute. However, you may encounter
some files whose baselines vary dramatically and the result of mixing them
together produces unacceptable distortion and noise.
Audio Editor allows you to calibrate such files so that they all have matching
baselines. Simply click
Effect: DC Offset . In the DC Offset dialog box, you can
drag the Offset slider to move the waveform above or below the baseline. Moving
to the right shifts the baseline up, while moving to the left pulls it down. (This does
not affect the amplitude of the file, only its waveform representation.) In this way,
you can calibrate any mismatched files to have roughly the same baseline before
you decide to mix them into the same audio file.
Waveform with an incorrect baseline