10.6

328Logic Pro Effects
Grooveshifter source material parameters
• Beat and Tonal buttons: Select the type of source, or input, material you are using.
• Beat button: The beat algorithm is optimized for percussive input material. The Grain
Size slider is disabled when you select Beat.
• Tonal button: The tonal algorithm is optimized for tonal input material. Because this
algorithm is based on granular synthesis, the Grain Size slider is available when you
select Tonal.
• Grain Size slider and field: Set the size of the grains—from 1 ms to 20 ms. Technically,
this determines the analysis precision. The default Auto setting at the left end of the
slider automatically assigns a suitable grain size value based on the incoming signal.
Grooveshifter swing parameters
• Grid buttons: Set the beat division used as a timing reference when analyzing
audio material.
• 1/8 button: Select if the audio material contains primarily eighth notes.
• 1/16 button: Select if the audio material consists mostly of sixteenth notes.
• Swing slider and field: Set the amount that even beats are delayed—from 50% to 75%.
A value of 50% means there is no swing, which is typical for most pop and rock music
styles. The higher the value, the stronger the swing effect.
• Accent slider and field: Set the level of even beats, from –12 dB to +12 dB, suppressing
or accentuating them. Such accents are typical of a variety of rhythmic styles, such as
swing or reggae.
Guitar Amp Pro
Logic Pro Legacy Guitar Amp Pro overview
Guitar Amp Pro simulates the sound of popular guitar amplifiers and the speakers used
with them. You can process guitar signals directly, reproducing the sound of your guitar
through a number of high-quality guitar amplification systems. Guitar Amp Pro can also be
used for experimental sound design and processing. You can use it with other instruments,
applying the sonic character of a guitar amp to a trumpet or vocal part, for example.
An amplifier “model” consists of an amplifier, speaker cabinet, EQ type, and microphone
type. You can create your own hybrids of different amplifiers, cabinets, and so on—using
the pop-up menus at the top center of the interface. You choose the microphone position
and type in the yellow areas to the left and right. Guitar Amp Pro also emulates classic
guitar amplifier effects, including reverb, vibrato, and tremolo.
You can use the Settings pop-up menu to save your new hybrid amp combos as setting
files, which also include any parameter changes you may have made.