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62 QuadraSynth Reference Manual
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Pitch (Page 3)
About portamento: When you play a key and then a second key, normally the sound
jumps instantly from one pitch to another. Portamento provides a sweeping glide
from one note to another over a variable amount of time. A good example of this
type of sound is a steel guitar, where a note slides from one pitch to another.
(Exponential, Linear, 1 Speed)
This provides the sweepÕs Òcurve.Ó
¥ With an exponential curve, the pitch change seems to happen more rapidly at
first, then slows down as it approaches the ending pitch.
¥ A linear curve produces a constant pitch change throughout the glide.
¥ Normally, the greater the interval (the pitch difference between the two notes),
the longer the glide. For example, a glide between two notes a whole step apart
would take much less time than a glide between two notes an octave apart. The 1
Speed curve maintains a constant glide rate regardless of the pitch difference
between notes.
Rate (0 to 99)
Sets the glide duration. Higher numbers give longer glide times. The Rate value is
affected by the Portamento value (see above).
(Mono, Poly, or 1-Pitch)
In Mono mode, you can play only one note at a timeÑjust like vintage monophonic
synthesizers. Poly mode allows you to play polyphonically. Note that portamento
behavior is more predictable in mono mode.
Tip: With a feedback guitar patch that uses one sound for the guitar and one sound
for the feedback, setting the feedback sound to Mono Keyboard Mode insures that
your feedback ÒwhistleÓ will be monophonic, which more accurately mimics what
happens when you play lead guitar.
Use 1-PITCH mode when you want a program sound layer to play a single pitch
throughout the entire keyboard range. In 1-PITCH mode, the QuadraSynth will
play the sample used for note C3 for all notes in the range. 1-PITCH mode is often
used for layering a noise or drum sound behind another sound that is pitched, for
example, to fatten up a bass guitar sound with a hint of kick drum, or to have the
same cymbal hit every time any note is played.