Ulead MEDIASTUDIO PRO 6.0, Руководство пользователя, Страница: 326 / 360

MEDIASTUDIO PRO USER GUIDE 326
Removing background noise
Unless you record in a rigidly controlled environment, such as a sound-
proofed booth, every audio track you record will have some measure of
background noise. For the most part, it will fall within acceptable levels,
easily drowned out by the primary body of sound. If not, background
noise can be very distracting and significantly decrease the quality of the
sound. In Audio Editor, you can specify an acceptable threshold noise level
by clicking Effect: Remove Noise. Any sound which occurs within this
level is then removed from the waveform. As background noise is usually
of a low amplitude, selecting a 2-5% threshold is often adequate. Setting
the threshold range too high, you run the risk of removing essential data.
Waveform before removing noise
Waveform after removing noise
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.