Expert Sleepers Augustus Loop v1.8.0 - Manual (Page 17)

Pitch
Pitch
This text field simply reflects the current pitch value. You can type numbers directly in
here. The values represent semitones (12 semitones is an octave).
Pitch Slider
The slider controls the speed of the virtual tape, over a range of two octaves i.e. you can go
from half-speed up to double-speed.
If you hold the Option (Mac OS X)/Ctrl (Windows) key while dragging the slider, it will
only move to whole number values.
If you hold the Command (Mac OS X)/Alt (Windows) key and click on the slider, it will
return to zero.
'Piano Keys'
The many small buttons above and below the pitch slider are laid out in a black and white
pattern like a piano keyboard. These buttons let you set the pitch slider directly to whole
semitone values.
The upper set of buttons just change the pitch. The lower set of buttons also reverses the
tape direction. NB This means that if the tape is already reversed, they will change the di-
rection to forwards.
Reverse
Reverses the direction of the virtual tape.
Of itself, this is fairly straightforward. However it has a slightly non-intuitive
relationship with the tap delay times. In order that changing the tape direction does not
produce any nasty artefacts, the position of the tap tape heads has to remain constant. This
means that their order is reversed.
For example, say in the simplest case you have the L-L and R-R taps set to 100% time and
level, and the other taps set to 0% level, with the master delay time set to 1s. In this sce-
nario, reversing the tape gives you the same result, that is a delay of 1s.