Voice Box

Vocal Harmony Machine/Vocoder


The Voice Box packs a multi-functional vocal synth processor into a tough and compact chassis. Sing, and you’ll have a troupe of backup singers following you in perfect harmony. Or use the built-in vocoder to unleash classic synth-robot sounds.

Diana Ross had the Supremes, Brian Wilson had the Beach Boys, Kraftwerk had The Robots. You have the Voice Box.

The harmony processor creates 2- to 4-part harmonies directly from your vocals, in the same key as your accompanying instrument. Studio-quality reverb lets you independently add depth to your dry and harmony vocals.

The focused 256-band articulate vocoder, designed by the same EMS genius who made vocoding famous, features adjustable harmonic enhancement and controllable formant shift.

Plug in your mic and your instrument, and let your new voice—or voices—be heard!


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Stuff from the Blog
Posted 6/14/2010

Floating and inspiring, Collen Dauncey entices her Electro-Harmonix Voice Box choir to deliver inspiring, human harmonies to the Fleet Foxes “Myknonos”.  One very talented singer PLUS one musical instrument evokes an EH vocal magic that weaves a haunting and beautiful symatry.

Posted 11/16/2009

Welcome to the tenth installment of EHX Effectology. In this episode Bill demonstrates a sound that reminds him of the keyboard sound in the Led Zepplein song “No Quarter”.
Second example is more of a traditional Fender Rhodes sound with a solo using the guitar into a Voice Box whistle mode.

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

Posted 10/7/2009

Posted 6/9/2009
EHX engineer John Pisani plays the Voice Box Slytherin style, with his wizard-rock band Swish and Flick. John adds: "Harry Potter is a weakling! All Hail Draco Malfoy!"

Posted 5/17/2009
YouTuber PuffyCatTail recently ordered a Voice Box and is now looking forward to recording a new demo with it. Please send song suggestions via her YouTube page.

Posted 5/16/2009
Thanks to YouTuber JargMarbin for this bit of experimental electronic fun featuring a Serge Creature, a Korg Kaossilator, and an EHX Voice Box. Excerpt: "I am your robot father. Go to your room. You're a bad robot son."

Posted 5/7/2009
Thanks to YouTuber electricpony for this surprising Voice Box rendition of the Beach Boys' "God Only Knows" -- take that, Brian Wilson!

Posted 4/27/2009
Thanks to YouTube's GuitarGearComMx for this demo of the Voice Box -- you'll get a good overview of the many different kinds of sounds you can make with the Voice Box.

Posted 4/15/2009
Thanks to Nataly Dawn and Jack Conte for their second Voice Box video, "In Harmony." This time you'll get a closer look at the Voice Box's harmonizer features (also be sure to see their earlier video which featured the vocoder).

Posted 3/6/2009
In our previous post, we heard the Voice Box help update the sound of a classic Neil Young song. Today, straight from Japan, let's all enjoy the entirely-different and other-worldly mash of a Voice Box with an iPhone synth. Yes, people: Welcome to new world; It's been too much long... (Thanks to YouTuber perfumepod for the video!)

Posted 3/4/2009
Big thanks to Eric Myers for this amazing performance of Neil Young's "After the Goldrush." Eric used the Voice Box in vocoder mode to merge his voice with the melody, as played via electric guitar. He combined the synthed-out vocals with acoustic tracks to produce this updated "twenty-first century" version of a classic song. Don't miss the third stanza: "Well, I dreamed I saw the silver space ships flying..."

Posted 1/6/2009
Sit back, relax, and enjoy the show: the Voice Box, as demoed by Jack Conte and Nataly Dawn.

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Quick Specs
Harmonically matches any electric instrument you plug into it
Professional quality pitch shifting algorithm produces realistic harmonies
The Low & High Harmony independently produces two harmony notes: 3rd and 5th
9 accessible programmable presets
Natural Glissando
Gender Bender knob allows for male/female formant modification
Built-In Mic Pre with Phantom Power & Gain Switch
Balanced XLR Line Output: Interface directly with any mixing board or A/D converter
US96DC-200BI power supply included
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We've been playing these EHX Strings ever since we first took them home to try them out, back in 2002.

We find them to consistently offer rich harmonics with powerful definition, while also lasting longer and staying in tune longer than conventional strings.

We use them, we like them, and we think you will too. Available in 9's, 10's, 11's.

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