F-em User Guide
of the waveform if you want a sharp click on note start. This is
an easy and fast way to get nice and punchy bass drum or
percussion sounds. You can reduce the click volume by moving
Startphase
away from this maximum magnitude until you are
happy with the result. If you don‘t want a click upon note start,
set
Startphase
to a point where the waveform crosses the
center.
•
Feedback
: Controls the feedback level; i.e, the amount of self-
modulation an operator will apply to itself. The higher the
feedback, the more complex the sounding result. Feedback can
also set in the FM Matrix. If you make any changes here, it
affects the Feedback dial and vice versa.
5.5 Sample Oscillator 1 and 2
On this pages, you find the controls for the
2 sample oscillators. To open this page,
click on the corresponding selection field S1
or S2 in the left section. Each Layer features 2 separate sample
oscillators. Because both Sample Oscillators feature the same
parameters, it will be described at once.
The Copy/Paste buttons lets you copy all settings from the current
Sample Oscillator and paste it to any other regardless of its Layer.
•
Sample Oscillator
On/Off
: Click on
this button, to
activate/
deactivate the
corresponding
Sample Oscillator.
•
Sample Selection
:
Click on this
button to open a
window, where
you can select a
sample. After loading, the sample name will be displayed next
to the Browse button. See also the section „Loading Samples“
on the next page.
•
Octave
: Sets the basic pitch of the Sample Oscillator in steps of
an octave.
•
Semitone
: Sets the pitch of the Sample Oscillator in semitone
steps. The standard setting for this parameter is 0, but there
are cases where different values are interesting as well.
•
Detune
: Fine-tunes the Sample Oscillator in steps of 1/128th of
a semitone. The audible result of detuned oscillators is a chorus
or flanger effect. Use a positive setting for one Sample
Oscillator and an equivalent negative setting for another.
•
Ratio
: The Frequency Ratio selection causes the frequency of
the Sample Oscillator to follow the keyboard. In other words,
higher notes produce higher frequencies. 1.00 is the
fundamental pitch, so the values 0.25 and 0.50 are considered
sub-harmonic. As with the notes on a piano, doubling the
coarse tuning value raises the frequency by an octave, and
lowering the value by half produces a frequency that is an
octave lower. For example, a value of 2.00 is an octave higher
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