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Pitch

H949 Harmonizer®

Eventide

Where to get itAvailable from Eventideeventideaudio.com

The H949 Harmonizer® is a recreation of Eventide's legendary pitch-shifting and delay effects processor from 1977–1984, the world's first de-glitched harmonizer and potentially the first multi-effect audio product. It offers 3 octaves of pitch change alongside unique Micro Pitch, Delay, Flange, Random, and Reverse modes, with dual pitch algorithms optimized for different source material and pitch ratios. The plugin includes both Single and Dual versions; the Dual recreates the popular technique of running two H949 units in parallel for lush doubling and stereo detuning effects.

Written from the manual and checked against it. How we check

Key Features

01Pitch ratios from 0.250 (2 octaves down) to 2.000 (1 octave up) in Manual mode
02Two pitch algorithms: Algorithm 1 for smaller pitch ratios, Algorithm 2 glitch-free but adds coloration for extreme ratios
03Micro Pitch Change (μPC) modes: Sharp (approximately 1:1.07) and Flat (approximately 1:0.93)
04Delay times in 6.25 ms increments up to 393.75 ms for Main Output and Delay Only Output
05Delay/Reversal modes: Delay, Random (0-25 ms varying), Flange, Reverse (up to 400 ms segments)
06Feedback controls with independent Main and Delay Only feedback routing plus LOW EQ and HIGH EQ
07Repeat function captures and recirculates last 400 ms of audio
08MIDI keyboard control via Note On and Pitch Bend messages; Dual version with Stereo Feedback (Mono/Stereo/Both), Stereo Link (Mono/Link/Reverse Link), and Stereo Width

Things to Try

  • 01In Micro Pitch mode, use Sharp and Flat with the Manual knob fully counterclockwise for pitch closest to 1:1, then adjust clockwise to raise (Sharp) or lower (Flat) pitch subtly
  • 02Use Reverse mode with large delay times (maximize Main Output delay switches to 393.75 ms) for the most apparent reversed-segment effect
  • 03Set Stereo Link to Reverse Link mode and use different Pitch Ratios on the two Dual units to create continuous up/down pitch shifting
  • 04Combine Flange mode with Manual knob adjustment to control the rate and amount of delay variation

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