Apple Logic Express 9 - Manual (Page 582)

Using the Sample Editor’s Silencer
You can use the Silencer to perform two different functions, either separately or together.
These are:
• Spike Reduction: Identifies, and reduces, signals such as pops and clicks.
• Noise Reduction: Lowers the level of any noise in the signal, such as tape noise.
The Silencer function is optimized for normalized data. Low-level material should be
normalized before processing.
Tip: Don’t forget that pops and clicks can also be manually removed using the Pencil
tool, if the Silencer doesn’t produce satisfactory results (see
Using the Pencil Tool to Edit
in the Sample Editor ).
Opening the Sample Editor’s Silencer
You need to select an area within an audio file before you can open the Silencer.
To open the Silencer
1 Select the area of the audio region in the Sample Editor that you want to process through
the Silencer.
2 Choose Factory > Silencer (or use the corresponding key command).
Spike Reduction
Noise Reduction
582 Chapter 17 Editing Audio in the Sample Editor