SECTION 1 - FRONT PANEL CONTROLS Bypass Status: Processes signal when lit, passes dry signal entirely in analog Key: Selects key for diatonic harmonies. Set to when unlit max for chromatic shifting Alt Function: Swell Alt Function: Scale Type Select Enable an automatic volume swell (from Min to Max): Major, Minor, Melodic Minor, based on the input...
SECTION 2 - SIGNAL FLOW OVERVIEW The Hedra features 2 distinct delay line configurations: 1. Pitch Feedback On (button is lit): In this mode, Hedra is configured to have one delay line (520 msec) with three inputs and one output. In this mode, the repeats are recycled through the pitch shifters FEEDBACK SWELL...
DELAY LINE SECTION 3A - KEYS AND SCALES Along with the front panel Key selection available on Hedra, hold the alt button and turn the Key knob to modulate through and select among the following scales: HARMONIC MINOR MELODIC MINOR DOUBLE HARMONIC MINOR...
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A RANGE OF MICRO TIME SECTION 3B - PITCH CORRECTION AND GLIDE CONTROL DIVISIONS HARMONIC MINOR STRICT MELODIC CORRECTION MINOR Hedra features 3 different pitch corrections settings or a DOUBLE HARMONIC pitch glide amount as listed in the knob graphic below. When Loose LOOSE Correction is selected, the notes are forced into the current Key and MINOR...
SECTION 4 - TRIGGERING PITCH VALUES WITH A MIDI KEYBOARD Using our MIDI I/O, Hedra accepts MIDI Note On and Off messages to hard tune the pitch shift voices to the exact notes you play. Sending a single Note On Message into the Hedra will just tune the Pitch 1 value, sending two Note On Messages will tune Pitch 1 and Pitch 2, and (as expected) sending three Note On Messages will tune all three pitch values.
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Federal Communications Commission Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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