The wiki has a small tutorial on using this noise gate… but I can not follow even these simple instructions…
- Make a selection that is “noise only” and open the Noise Gate effect.
Select Function > Analyse Noise Level and make a note of the suggested threshold level.
Select a section of the audio track that includes both sound and silence.
Apply the Noise Gate with the following settings: Select Function > Gate Level reduction > -100. Listen carefully to the result to check that the noise is being cut and the audio is still present. This effect will probably sound unnatural as the gate is fully closing and producing absolute silence when closed, but it will allow you to easily hear if the threshold level is set correctly. Click CTRL + Z to undo and if necessary adjust the threshold level and retest.
5 )When you are happy that the threshold level is correct, raise the “Level reduction” setting to the highest setting that produces an acceptable amount of gating (the default level of -12 dB usually works well).
- When you are happy with the settings, apply to the entire song.
What dose it mean by “Select Function > Analyse Noise Level” ?