ORCΛ Esosampler Companion
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FX Arguments

The arguments from the 9th to the 13th are used to select and control additional processing upon the played sample. This processing can be often modulated by the amp envelope, or if the 13th and 14th arguments are used by a separate mod envelope.

List of processors

The 9th argument will select the processor and the next will tweaks its arguments. Not all the arguments are always needed, so try out yourself.

9th processor 10th 11th 12th 13th
a 12dB/oct Band Pass FIlter octave transpose resonance mod amount
b 24dB/oct Band Pass FIlter octave transpose resonance mod amount
d Clocked Delay (post amp) time feedback drift send
h 12dB/oct High Pass Filter octave transpose resonance mod amount
i 24dB/oct High Pass Filter octave transpose resonance mod amount
k Comb Filter (post amp) octave transpose feedback mod amount
l 12dB/oct Low Pass Filter octave transpose resonance mod amount
m 24db/oct Low Pass Filter octave transpose resonance mod amount
o FM Operator octave transpose fm mod pitch mod
q Modal Bank (post amp) octave transpose ratio mode bank q
r Ring Modulator octave transpose mix mod amount
t Tanh Saturator (post amp) drive octave transpose trim
w Modal Bank + Dry (post amp) octave transpose ratio mode bank q
x Decimator octave transpose bits mod amount

An explanation of the possible parameters to set:

  • octave + transpose: many processor operate at a certain frequency, this frequency is operated and tuned in the same identical way of the single cycle waveforms, so you can play with a filter or even with the decimator frequency. The tahn saturator has a 12dB/oct lowpass non-resonant filter after the saturation you can use to darken the harmonics.

  • mod amount : the frequency of the processors can be modulated by the amp envelope or a dedicated mod envelope (see later). This parameters sets the amount of modulation to the frequency in octaves.

  • time : timing in orca frames for the delay amount. Some values will set it to fractional amounts: 0 for half frame, z for a quarter of a frame, y for 1/8th and x for 1/16th.

  • feedback : the delay feedback, 0-g is mapped from zero to endless feedback. THe feedback value for the Comb Filter is still in the 0-g range but mapped with a different curve.

  • drift : amount of drifting applied to the delay timing, uses values from 0 to g. 0 (no drifting) by default.

  • send : delay send gain reduction. The value is in negative decibels so for example 9 will mean -9 dB. This value will trim the signal before entering the dalay line. A value of 'x', 'y' or 'z' will mute the delay send without chocking the current feedbacks.

  • trim : tanh saturator makeup gain. The value is in negative decibels so for example 9 will mean -9 dB. The gain reduction is applied to the whole signal after low pass filtering.

  • resonance : resonance value for the filters, from 0 to g.

  • fm mod : one of the processor is a FM synthetizer voice, modulated by played sample or waveform. The original sample or waveform won't be played and it will be replaced by the FM synth output. This parameters controls the amount of modulation from the sample/wave to the FM operator.

  • pitch mod : this is the same of mod amount, for the FM operator frequency.

  • mix : the mix of the ring modulated signal with the original, 0-g is mapped to the 0% - 100% range.

  • drive : gain increase in decibel before the saturation DSP, 6 for example would mean +6dB and c would mean +12dB.

  • bits : number of bits for the signal, for example 8 would reduce the audio to an 8 bit signal. 0 deactivates bit reduction in the decimator.

  • ratio mode : select a set of ratios for the modal bank resonators, see Appendix A

  • modal q : select the Q value of the modal bank resonators

14th / 15th arguments : Mod Envelope

If the 14th or 15th arguments are present, a dedicated mod envelope is used instead of the amp envelope for modulating the frequency of the processor (or the FM amount). the 14th argument is used for Hold/Attack and the 15th for Release, as in the amp envelope. Sustained envelope are still controlled only by the 6th and 7th arguments, mod envelope is triggered just once when used with Az/zR amp envelopes.

16th argument : Slew Control

The value of the 16th parameter will be used to add a variable slew to the transpose control of both sampler pitch and fx frequency, for gliding effects. The value between 1 and g can be used and the max slew time can be setted in the settings.conf file.

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