Apple Logic Express 7 - Manual (Page 68)

68 Chapter 10 Special
Note: When in doubt, Speech is a good place to start. A/B the options to compare
them, and use the one that suits a given recording best. When auditioning and judging
settings for quality, it’s a good idea to temporarily turn the Mix knob up to 100%. Keep
in mind that Pitch Shifter II artefacts are a lot harder to hear when you mix a smaller
percentage of a transposed audio to the overall signal.
If you activate the 001/011 button in the plug-in header, you can create your own
presets, using the additional Delay and Crossfade parameters. These parameters are
only effective when you select the Manual option in the Timing menu. You can also
select the Auto option here—the Pitch Shifter will then automatically create presets by
analyzing the incoming signal. The Stereo Link parameter allows you to invert the stereo
channel’s signals, with processing for the right channel occurring on the left and vice
versa.
Denoiser
The Denoiser eliminates or reduces almost any kind of noise floor.
Denoiser Parameters
Threshold
The value of this parameter determines how high you think the noise floor of the
material is.
Tip: Find a passage where only noise can be heard in isolation, and set the Threshold
value so that only signals of this volume will be filtered out.
Reduce
Reduce determines the level that the noise floor should be reduced to. A CD
theoretically has a maximum signal to noise ratio of 96 dB. Each 6 dB reduction is
equivalent to halving the volume level (a 6 dB increase equals a doubling of the
volume level).