LinPlug Octopus - Manual (Page 15)

Low Key
The Low Key setting is used to determine the lowest note that triggers the
selected sample. Each sample is played from its Low Key up to anothers
sample's Low Key (no overlapping is permitted) .
Root Key
The Root Key setting determines the key that plays back the sample at its
original pitch. The Root control enables you to set the unity note of the
loaded sample. If, for example, you set Root to C1 and play a C2 the
sample will be played one octave above its original frequency. If you wish to
obtain the most natural sound then you should set the sample's root note to
the same note as the one at which the sample was initially recorded.
Otherwise the sample will be pitch-shifted. In many cases however, it is
precisely these effects that give the sample an interesting and unusual
sound.
KBD TRK
The KBD TRK (Keyboard Tracking) button setting determines whether the
sample tracks the pitch of incoming MIDI messages. If Track is switched off
the frequency of the sample is fixed at its original value.
Use LPS
The USE LPS button setting determines whether or not the sample loops
when it is played back. If USE LPS is set to Off then the sample will only
play once each time it is triggered. If the sample contains loop points, these
are used for looping, otherwise the entire sample loops.
F1/F2
The F1 and F2 controls determine the amount of signal that is sent to Filter
1 or Filter 2 respectively.
Manual 13