tab: SHAPER ( polyphonic Waveshaping, Pitchshifting, Harmoniser and more )

Started by PDFX, Feb 06, 2023, 11:09 AM

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PDFX

First tab is SHAPER

Screenshot 2023-09-22 at 20.41.10.png

BLEND -  blends the dry guitarsignal with the synth signal: the output is send to the AMP
TRESHOLD - this is not a normal gate, it is a spectral gate, meaning every frequency component indivdually has to cross the treshold to be heard.
SUSTAIN - boosts the overall level of the resynthesis up to a limit to get longer notes.
ATTACK - this knob can slow down the attack, for every frequency component independently
OCT - pitches the whole spectrum in octave steps
PITCH - pitches the whole spectrum in halfnote steps
DROP - splits the spectrum into 2 parts: the lower part is dropped ("lowered") 1 octave. There is a 1 octave transition zone to provide smoothness at the drop border.
DOUBLER - The doubler has 3 modes:
1) DOUBLER  - The Doubler knob has fifths and octaves with varying degrees of detune.
2) OVERTONE  - The X knob chooses the overtone.
3) Harmonisers (12 keys)  - The HARM knob chooses from a ascending range of chordal notes within the current key. The chord range is a simple root-third-fifth structure.
-The MIX knob allways rules the volume of this extra voice.
-The positon in the stereo image is determined by SPREAD (see SPACE tab) and the stereo setting there.
-Setting AMP to QUATRO will give the doubled voice a separate amp! In DOUBLE mode the 2 shaper voices share 1 amp, in SINGLE mode normal guitar and shaper voices are mixed mono before being fed into 1 stereo amp.

Now we get to the additive synthesis part:
HX OFF - no extra harmonics are added. You basically hear a representation of your normal guitar.
SAW - adds all multiples of the source frequency components.
SQUARE - adds odd multiples of the source frequency components.
BRIGHT - adds even multiples of the source frequency components.

The level of the added harmonics are ruled by a filtering scheme:
LP  - (Low Pass) the harmonics are added from 0 up to the cutoff frequency.
HP - (High Pass) the harmonics are added from cutoff frequency onward.
BP  - (Band Pass) the harmonics are only added around the cutoff frequency.

+ORIG The filterschemes above can mute the sound. If you want to allways have the original frequencies in the output, this knob will do just that!

RANGE - a lowpass for the seeds going into the harmonics generator.
SENSE - the sensitivity to the input: high sense will move the cutoff from MIN to MAX
ATTACK - the SENSE envelop can be slowed doen here to create interesting attack filter effects.
MIN - this is the rest position of the cuttof. If SENSE is 0, this will 100% determine the cutoff position. (Note that REMOTE/Filter uses this as min too!)
MAX - This is the MAX position which can be reached by SENSE. (Note that REMOTE/Filter uses this as a max too!)
RESONANCE - In LP and HP mode, this determines the height of the bulge at the cutoff frequency. In BP mode there is only this bulge, so it will work there as a pure volume for the filtered harmonics.
TONE - The added harmonics can be much brighter than your guitar. Therefore this knob can tone down the synthy sound. Note that the +ORIG knob's original spectrum contribution will be not affected by this. This means you can have bright guitar, filled in by synth in the lower frequencies.


At last, but not least, there is the dynamic modulation section:
OFF - no dynamic modulation
TREM - a tremolo with depth DEPTH, speed FREQ. The ATTACK above 0 will postpone the effect on newly plucked sound. ATTACK below 0 will only use the effect on newly p lucked sound.
DETUNE - A detune with 1 octave max DEPTH. The ATTACK above 0 will start the note at a lower point to glide into the normal frequency. ATTACK below 0 will glide in from above.
VIB - a stereo vibrato with depth DEPTH, speed FREQ. The ATTACK above 0 will postpone the effect on newly plucked sound. ATTACK below 0 will only use the effect on newly p lucked sound.