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SECTION 1

 - FRONT PANEL CONTROLS

Key: 

Selects key for diatonic harmonies. Set to 

max for chromatic shifting

Alt Function: Scale Type Select 

(from Min to Max): Major, Minor, Melodic Minor,
Harmonic Minor, Double Harmonic, 
Lydian Pentatonic, Minor Pentatonic

Bypass Status: 

Processes signal when 

lit, passes dry signal entirely in analog 
when unlit

Alt Function: Swell 

Enable an automatic volume swell 
based on the input

Microtune: 

Slightly detunes all three pitch shifted 

voices

Alt Function: Pitch Correction and Glide

When the knob is between Min and Mid select 
between No Correction, Loose Corrections, Strict 
Correction.  When knob is between Mid and Max 
selects amount of glide

Pitch 1: 

Sets interval for the first pitch

shifted voice

Alt Function: Time Division 1

Sets a fraction of the main tempo for 
the first pitch shifted voice

Tap: 

Sets the main tempo/delay time

Total available time = 520 msec

HOLD to access Alt Function: 

Alt knob functions are available while this 
button is being held

Mix: 

Adjusts the balance between Dry 

and Wet signals

Alt Function: Delay Feedback 

Controls delay feedback

Pitch 2: 

Sets interval for the second pitch shifted 

voice

Alt Function: Time Division 2

Sets a fraction of the main tempo for second 
pitch shifted voice

Pitch Feedback: 

When button is lit. 

Pitch shifters are in the feedback loop 
of the delay

Alt Functions:  Half Speed

Enable the delay to run at half speed

Pitch 3: 

Sets interval for the third 

pitch shifted voice

Alt Functions:  Time Division 3

Sets a fraction of the main tempo for 
third pitch shifted voice

Summary of Contents for HEDRA 500 Series

Page 1: ...email info meris us C O N TA C T M A N U A L v 1 M O R E T H A N L O G I C U N I T I N G A R T E N G I N E E R I N G 5 0 0 S E R I E S phone 747 233 1440 website www meris us...

Page 2: ...W OVERVIEW SECTION 3 PG 3 4 CONTROLS IN DEPTH 3a KEYS AND SCALES 3b PITCH CORRECTION AND GLIDE CONTROL 3c TIME DIVISION CONTROLS SECTION 4 PG 5 TRIGGERING PITCH VALUES WITH A MIDI KEYBOARD SECTION 5 P...

Page 3: ...tch 1 Sets interval for the first pitch shifted voice Alt Function Time Division 1 Sets a fraction of the main tempo for the first pitch shifted voice Tap Sets the main tempo delay time Total availabl...

Page 4: ...2 SIGNAL FLOW OVERVIEW SWELL PITCH 1 PITCH 2 PITCH 3 TIME DIVISION 1 TIME DIVISION 2 TIME DIVISION 3 DELAY LINE FEEDBACK MIXER SWELL PITCH 1 PITCH 2 PITCH 3 TIME DIVISION 1 TIME DIVISION 2 TIME DIVIS...

Page 5: ...pression pedal with Hedra to choose how the scale reacts to your playing Harmonic Minor Semi tones 2 1 2 2 1 3 1 Intervals Root Major 2nd Minor 3rd Perfect 4th Perfect 5th Minor 6th Major 7th Octave D...

Page 6: ...itch Ex a dotted eighth note is of a beat SECTION 3B PITCH CORRECTION AND GLIDE CONTROL SECTION 3C TIME DIVISION CONTROLS MELODIC MINOR HARMONIC MINOR MAJOR MINOR OFF MAX DOUBLE HARMONIC EASTERN PENTA...

Page 7: ...ay and feedback to max and use a MIDI keyboard to build sonic sculptures one note at a time Holding down the Bypass Switch button or R Top LED button on power up resets all of the presets and all of t...

Page 8: ...turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation b...

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