Quetzalcoatl quick guide
Quetzalcoatl is essentially 8 sample based synth voices stacked together with independent control over several key parameters. In traditional synthesise terms you could say a single Quetzalcoatl “voice” in has a signal chain something like this:
VCO (sample) > VCA (pre XF Gain) > VCA (For X-Fade) > - Filter - VCA (envelope).
Apply several different crossfading and layering effects to the 8 voices.
Controls:
X-fade - crossfade between the voices Fade Mode - Select one of five x-fade modes Stages - Select between 8, 4 & 2 active voices* Smooth - Smooths out the levels between crossfades Env 1 - Applies the XF ENV 1 modulator to the x-fade Env 2 - Applies the XF ENV 2 modulator to the x-fade Mod A - Applies Mod A to the x-fade Mod B - Applies Mod B to the x-fade Vel - Applies velocity modulation to the x-fade AT - Applies channel aftertouch the x-fade Trk - Applies keyboard tracking to the x-fade
*Reducing the number of stages should improve performance.
STAGES
Use the stages menu to switch between pages.
Tuning
Tuning - The 8 sliders control the pitch of a single voice Pitch mode - Select one of several pitch modes. These will lock (or not**) the pitch of the voice to a particular scale or tuning. Offset - Offsets the relative position of each of the tuning sliders Mod - Applies Mod B to the offset value Vel - Applies velocity modulation to the offset value AT - Applies channel aftertouch the offset value Trk - Applies keyboard tracking to the offset value Mod 1-8 Per stage modulation Glide 1-8 per stage glide
Gain - The 8 sliders control the gain (pre Xfade) of a single voice Offset - Offsets the relative position of each of the gain sliders Mod 1-8 Per stage modulation
Cutoff - The 8 sliders control the cutoff of a single voice Mode - Select between low pass, high pass and band pass filter modes Offset - Offsets the relative position of each of the cutoff sliders Env 1 - Applies the Filter ENV 1 modulator to the cutoff offset Env 2 - Applies the Filter ENV 2 modulator to the cutoff offset Mod A - Applies Mod A to the cutoff offset Mod B - Applies Mod B to the cutoff offset Vel - Applies velocity modulation to the offset value AT - Applies channel aftertouch the offset value Trk - Applies keyboard tracking to the offset value Mod 1-8 Per stage modulation
Gives quick access to the main pitch, gain and filter controls.
Used in conjunction with the user pitch mode. Set 16 pitches to create scales etc. Mode button switches between semi-tone and free adjustments.
Expansion - Select an expansion pack to load Presets - load, save and manage presets Samples - Load multi-samples, change sample modes, import user waves and SFZs.
Select between the polyphonic modulation options available to the x-fade and filter.
Tempo - set the tempo of the step and LFO modulators Div - Divide the tempo rate Modę - switch between step and LFO modes One shot - The modulator only plays once Steps - set the number of stages in the step modulator
Env 1 - A standard ADSR envelope Env2 - A Looping AR envelope
Glide - set a glide amount Time - set the glide time Div - divide the glide time Unison - increase the number of voices played per key (beyond 2 and playback becomes monophonic) Detune - detune the stacked voices Spread - pan the voices Pitch mod - modulates the global pitch