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USING THE PARAMETER MENU 

 
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You can control additional parameters by using the Parameter Menu. 
 
To access the Parameter Menu 

double-tap

 the left button.  The LEDs 

will now start blinking on and off in alternation: this tells you that 
the Parameter Menu is active.  When the Parammeter Menu is active the 
keys will no longer play notes but each key will select and modify a 
particular parameter as described below.  Depending on the parameter, 
the pot positions may also be relevant, as described below.  The 
Parameter Menu is active until you press a key: then the parameter 
associated with that key is modified, and the Parameter Menu is 
automatically exited (restoring the prior user interface state). 
 
You can exit the Parameter Menu without modifying any parameters by 

double-tapping

 the left button a second time. 

 
The list below describes what actions are taken when a key is pressed: 
 
    Key   Action    
    ---   ----------------------------------------------------------- 
 
     C    toggle Sample-and-Hold on/off 
     C#   turn Sample-and-Hold off, and unhold all held notes 
     D    hold next note played 
     D#   [ reserved ] 
     E    toggle lead voices on/off  
     F    set # of slots in carousel based on pot 0 position * 
     F#   toggle isoTempo or/off  
     G    select trope based on pot 1 position ** 
     G#   [ reserved ]  
     A    ADSR pots control envelopes of both lead and echo voices 
     A#   ADSR pots control envelopes of lead voices only  
     B    ADSR pots control envelopes of echo voices only 
 
 * turn pot 0 to desired position (all the way left = 1, all the way  
   right = 4) then press F  
 
** turn pot 1 to desired position (all the way left = "no trope" )  
   then press G 

 

 

Содержание Quadrant

Страница 1: ...ly the FraraJaqua preset is omitted Audio Control Flow Diagram for the Quadrant Synth Tropes v Echotron v v v Lead 0 Mixer Lead 1 v v Audio out Lead 0 is duplicated in the opposite audio channel by Lead 1 which may be transposed and or detuned from Lead 0 The note information for Lead 0 is also fed into the Echotron At the same time a trope an arpeggiation pattern can be applied to the echoed note...

Страница 2: ...ecrease by an amount controlled by the FEEDBACK setting If FEEDBACK is set to its highest value 255 then the note will echo forever or until all the slots in the carousel have been used up and a new incoming note overwrites it Each time a note echoes its pitch can be raised or lowered by the current WARP FACTOR The number of slots in the carousel is configurable and can be set interactively via th...

Страница 3: ...tes currently echoing in the carousel and ISO TEMPO is on then the delay time will be 1 4 of what it would be if there were only 1 note in the carousel The Telepromt and Frara Jaqua presets use ISO TEMPO You can toggle ISO_TEMPO via the Parameter Menu see below ENVELOPE A master envelope dynamically controls the amplitude of the notes produced by the Echotron This envelope is a traditional ADSR At...

Страница 4: ... pots see below PAN CONTROL A PAN control dynamically rotates the note output in the stereo field The DEPTH and FREQ of the panning can be controlled via the pots see below Overview Diagram of the Echotron Now that we have covered each component here is an overall view HOLD notes in SAMPLE HOLD v WARP Trope in Note Carousel DELAY ISO TEMPO FEEDBACK SLOTS ENVELOPE notes out Attack Decay v Sustain S...

Страница 5: ... blue LED for right button will change state from OFF to ON to BLINKING back to OFF etc Below is a chart showing which pair of parameters the pots control when the LEDs are in a given state red LED blue LED top POT bottom POT OFF OFF echo WARP echo DELAY time ON OFF echo FEEDBACK lead echo BALANCE BLINK OFF panning FREQ panning DEPTH OFF ON autowah FREQ autowah DEPTH ON ON autowah CUTOFF echo PULS...

Страница 6: ...cally exited restoring the prior user interface state You can exit the Parameter Menu without modifying any parameters by double tapping the left button a second time The list below describes what actions are taken when a key is pressed Key Action C toggle Sample and Hold on off C turn Sample and Hold off and unhold all held notes D hold next note played D reserved E toggle lead voices on off F se...

Страница 7: ...ces off and should stay off D Farsy E Teleprompt lead voices off turn them on once 2 slots are playing F Glacial play very slowly G Blur A ToneJack B FraraJaqua lead voices off turn them on once 4 slots are playing FraraJaqua only available when compiled with build 1 6 6 Types of button presses Tap quickly tap a button Press long press a button Double Tap quickly double tap a button ...

Страница 8: ...square wave oscillators which can only be set to frequencies which have integral wavelengths The frequencies produced by these oscillators conform more closely to a scale in Harmonic Tuning than one in Equal Temperament But why does the C key play an F The short answer is that on the ArduTouch whose audio rate is 15 6 kHz F in octave 1 has a period of 360 samples 360 is a number favored by the anc...

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