10.6

Table Of Contents
133Logic Pro Instruments
Attack knob: Set the time it takes for the compressor to react when the signal exceeds
the threshold level.
Release knob: Determine how quickly the compression effect subsides once the input
signal falls below the threshold value.
Threshold knob: Set the threshold level. Signals above this threshold value are reduced
in level.
Input Gain knob: Set the level of gain applied to the signal at the compressor input.
Ratio knob: Set the ratio of compression when the signal exceeds the threshold value.
Makeup Gain knob: Set the amount of gain applied to the compression signal at the
compressor output.
Logic Pro Alchemy filter effects
Effect modules are shown only in browse or advanced view. Click the Browse or Advanced
button to switch to either view, then click the Effect button in the Perform/Arp/Effects
section.
Effects in this group change the frequency content of the signal.
Alchemy Bandpass Filter effect parameters
An adjustable width bandpass filter. The rejected portion of the signal can be recovered at
a later point in the signal path by using the Band Reject effect.
Low Cut/High Cut knobs: Set the lower and upper boundaries of the passband.
Low Res/High Res knobs: Add resonant emphasis to the passband boundaries.
Alchemy Band Reject Filter effect parameters
Available only when the Bandpass Filter1/2 is inserted earlier in the signal path. Lets
you mix in the portion of the signal that was rejected by the bandpass filter. A classic
application of this feature is for multi-band distortion.
Mix knob: Set the amount of band-rejected signal mixed back into the signal path,
bypassing effects between the BP Filter and the Band Reject mix point.
Alchemy Bass Enhancer effect parameters
Bass-boosting EQ, recommended for use with bass and low frequency percussion sounds.
Amount knob: Set the intensity of the bass enhancement.
Tune knob: Determine the frequency band to which the boost is applied.
Phat button: Add a saturation effect, for a different color to the bass enhancement. For
more neutral/transparent results, leave phat mode off.
Alchemy Distortion effect parameters
Distortion effect with multiple algorithms that can be used simultaneously.
Bitcrush knob: Use for a lo-fi digital distortion.
Mech knob: Use to produce a nastier, more intense distortion.