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Copyright 2021, Eventide Inc. P/N: 141259, Rev 8 Eventide is a registered trademark of Eventide Inc. AAX and Pro Tools are trademarks of Avid Technology. Names and logos are used with permission. Audio Units and macOS are trademarks of Apple, Inc.
1.1 About This Product Thank you for your purchase of the Eventide H910 Harmonizer® plug-in. The prod- uct recreated in this plug-in was among the first introduced by Eventide - and among the world’s first commercially available professional recording products. For over 40 years, innovative products like these have made Eventide an industry leader, and we are extremely proud that they continue to be in demand today.
2 Production Dates: 1975 – 1984 The Eventide Clockworks H910 Harmonizer® was the world’s first harmonizer – and one of the first commercially-available digital audio products. It offered built-in de- lay, manual adjustment of +/- 1 octave and even had an ”Anti-Feedback” mode which helped to eliminate feedback between a mic and speaker by constantly ”riding”...
2.1 H910 Harmonizer® Controls Main H910 Panel Line When the Line control is IN the LED is on and the unit is actively processing audio; when it is OUT the LED is off and the unit is bypassed and passes audio directly from input to output. Input Level The input LED will light at -0.5 dBFS.
Pitch Control The four switches in this group allow you to select whether Select the pitch change is set by the manual knob (MAN), the anti-feedback oscillator (A-F), the HK941 keyboard and MIDI (KYBD), or the Envelope Follower (ENV). • MAN – This switch activates the MANUAL control knob. When fully counterclockwise, the output pitch is de- creased by 1 octave (ratio=.5).
Delay Allow you to insert additional delays before the output. When in DELAY ONLY mode, select delay times in 7.5 ms increments to a maximum of 112.5 ms. (7.5+15+30+60). When in pitch mode only the right two buttons are active for 30 ms each, allowing for up to 60 ms of additional delay (30+30).
Secondary (HK941) Panel Controls This control sets the overall balance of wet (effected) signal to dry (original) signal. Main Level This control sets the level from the H910’s main output, which can be set to either shift pitch or output delay only. The main output is also the source for the Feedback buss.
HK941 Keyboard When the Pitch Control Select is set to KYBD the HK941 Key- board is an automatable keyboard which can be operated by your mouse and which automatically sets the H910 to musical intervals. This two octave keyboard is set up in such a way that the center C key represents a pitch ratio of 1.0, with each key to the right shifting the pitch ratio one further half-step up and each key to the left shifting the pitch ratio one further half-step...
2.2 H910 Dual Harmonizer® Controls The H910 Harmonizer® plug-in comes bundled with the H910 Dual Harmonizer® plug- in, which recreates two H910 units running in parallel, an application that was frequently used in the hardware version to create doubling effects. Of course, you can also use the H910 Dual to create a wide variety of other interesting sounds.
Working with the Harmonizer® part 3 3.1 Signal flow of the H910 Single The original H910 Harmonizer® had additional inputs and outputs which would have traditionally been attached to external studio gear to work. In order to make this plug-in work well in a DAW environment, we’ve built some of this external gear, like an envelope follower and a mixer, into the H910 Single plug-in itself.
3.2 Playing the Harmonizers with a MIDI Keyboard A MIDI keyboard set to send MIDI on the H910’s MIDI Channel can be used to control the pitch ratio in discrete musical steps. Middle C on the keyboard will set Unison on the Harmonizers;...
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The Harmonizers respond to MIDI Note On and Pitch Bend messages. The bend range covers two octaves, from 0.5 to 2.0. The MIDI response for all plug-ins is OMNI, i.e. messages received on *any* of the 16 channels will be accepted. Figure 3.1: Pitch Ratio Readouts for Various Musical Relationships...
In many DAWs there is an additional generic preset bar that saves DAW-specific presets to a separate location. We recommend saving your presets using the Eventide preset bar to ensure that your presets will be accessible from any DAW. You can also create sub-folders inside the preset folders, if you wish.
Conclusion part 4 We hope you enjoy the H910 Harmonizer® plug-in and put it to good use in all of your mixes. Please be sure to check over Eventide’s other Native Plug-In offerings for more unique and interesting effects.
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