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The parameter XtraJxXFMod controls the depth of modulation, or the level of frequency modulation that is applied
to the Carrier Oscillator signal. This is a key timbre control parameter as it directly affects the generation of audible
sidebands. In general, higher values (+ or -) will increase the number of sideband frequencies, thus generating a fuller
and often noisy sounding timbre.
When XtraJxXFMod is adjusted in the positive range (0 to 100) the XFM synthesis algorithm targets the signal after
envelope processing. The result of this is that the modulation depth level is dependent on your playing dynamics – or
how hard you strike. This is an interesting way to expressively and dynamically control the timbre. The harder you hit the
more audible sideband frequencies are generated.
When XtraJxXFMod is adjusted in the negative range (0 to -100) the XFM synthesis algorithm targets the signal before
envelope processing. In this case, there is no dynamic change in the output timbre in terms of the audible sidebands
generated.
The parameter XtraJxCarLev is used to adjust the signal level of the Carrier Oscillator. The parameter XtraJxModLeV
is used to adjust the signal level of the Modulator Oscillator. Adjusting both of these parameters will also affect the
generation of sidebands and the timbre of the synthesized sound.
In addition to XFM synthesis processing, JingleX also runs a parallel ring modulation process between the Carrier
Oscillator and Modulator Oscillator. The parameter XtraJxRingLv can be adjusted to mix in the signal output of the ring
modulation synthesis process. This is particularly effective when you wish to add more inharmonic sidebands and color to
the timbre.
Instrument and effect parameters