IronchoirVocoder effect · your voice sings chords the moment it's inserted
The only vocoder plugin you'll ever need to make your voice sing chords.
Insert it on a vocal and it sings: Ironchoir hears the pitch you sing and plays a chord on it with its own synth, in the song's key, with no keyboard, no MIDI track and no routing. CLARITY keeps the words clear, the stereo spread folds safely to mono, and every preset is matched to your dry voice.
- Use it on 5 computers per copy
- Lifetime updates
- 90-day money-back guarantee
- Download link in minutes
- VST3, AU and AAX, Windows and macOS
- Try it free
Formats and DAWs
Windows 10 and 11 (64-bit): VST3 and AAX
macOS 11 or later: VST3, AU and AAX
Works in any 64-bit DAW that loads VST3, AU or AAX plug-ins.
Licence
Use it on up to five of your own computers per copy you buy. Yours for good, no subscription. Unlock it with your email and a six-digit code, no dongle and no password. It checks in now and then and works offline in between.
Delivery
Download links by email within about five minutes, and always in your account under Downloads.
Hear the difference
The same vocal loop, without and with Ironchoir.
A sung hook singing full chords in its own key
A dry sung hook - triads in the hook's key (CHORD TRIAD, KEY D# MINOR, CARRIER AUTO)
The same hook singing chords from MIDI notes
The same hook - CARRIER MIDI on synthesised MIDI chords (D# minor, B, C# major, one a bar)
Warm seventies string chords from a soft sung phrase
A soft sung phrase - four-note chords set low (CHORD FOUR, SMOOTH 300 ms, KEY D MINOR)
A talking synth lead, every word clear
A sung vocal loop - Voice / Talking Lead (CHORD SINGLE, SMOOTH 25 ms, CLARITY 50 %)
A rapped line turned into a whisper pad
A rapped vocal loop - Carrier / Whisper Pad (CARRIER NOISE, SMOOTH 800 ms)
Power chords on a dry hook, nothing to set
The first clip's dry hook - Init (CARRIER AUTO, CHORD POWER, SMOOTH 50 ms), no keyboard
Every line is a sung or rapped vocal loop; the chords are synthesised inside the plug-in, in one clip from MIDI notes. Each pair is level-matched.
Ironchoir in action
Ironchoir in under a minute: CHORD, SMOOTH, FORMANT, the whisper carrier and the presets on one voice.
Why Ironchoir
Sings the moment it's inserted
Most vocoders stay silent until a synth or MIDI track is routed in. Ironchoir's AUTO carrier reads the pitch you sing 60 ms ahead and plays a chord on it with its own bright synth, so a dry vocal sings at once.
Words you can understand
CLARITY puts your own S, T and F sounds back on top, so the words stay clear where a vocoder on its own blurs them. SMOOTH runs from crisp, talking words to a slow pad.
Wide, level and mono-safe
The chord's notes spread left and right with the root identical on both sides, so a mono fold loses at most about 1 dB and nothing cancels. The level is matched to your dry voice, so A/B is fair.
Chord. Smooth.
Two big knobs do the work: which notes your voice sings, and how closely the sound follows your words.
- VST3 · AU · AAX
- Windows and macOS
- 4 carriers
- 12 presets
The vocoder plugin
- Chords in key. POWER fits any key; TRIAD and FOUR follow the song's KEY and SCALE, 13 scales in all.
- Words you can understand. CLARITY puts your S, T and F sounds back on top; SMOOTH runs from crisp words to a slow pad.
- Wide and mono-safe. The chord's notes spread left and right with the root on both sides: at most about 1 dB lost in a mono fold.
- Level-matched. Every preset sits at the loudness of your dry voice, so A/B compares the sound, not the volume.
- CHORD (SINGLE, POWER, TRIAD, FOUR), KEY and SCALE, and four CARRIER modes: AUTO, MIDI (up to eight held notes), an external track, and NOISE for a whisper.
- SMOOTH (25 ms to 1.5 s), CLARITY, FORMANT and every note movable down or up (-2 to +2).
- LOW LATENCY (about 7 ms), MIX, Input and Output gain, IN and OUT meters, and ENGAGE.
- 12 factory presets and your own preset files; A/B, undo and redo, MIDI Learn on every control; a window from 75 to 200 %; the full manual.
CARRIER · AUTO
Sing. It plays the chords.
AUTO reads your pitch 60 ms ahead and plays the chord on it with its own synth of five detuned saws: no keyboard, no MIDI track, no routing.
What Ironchoir does
Every control has one job: a voice that sings chords, with words you can follow.
CHORD
From one note to four
SINGLE sings your note alone, a talking synth lead. POWER, the default, adds its fifth and the same note higher up: an open sound that fits any key. TRIAD builds the in-key chord on the song's KEY and SCALE, and FOUR adds the seventh for a lush, string-like sound.
SMOOTH
Crisp words or a slow pad
How fast the sound follows your voice, 25 ms to 1.5 s. Short keeps every consonant crisp and the words easy to follow; long smears them into a pad that rings on after you stop. The line under the knob names the zone, from CRISP WORDS to SLOW WASH.
CARRIER
Choose where the notes come from
AUTO, the default, plays CHORD on the pitch you sing. MIDI plays up to eight notes you hold on a keyboard. SIDECHAIN turns any track you send in, a pad, a synth or a drum loop, into the sound that speaks. NOISE carries the words on breath, as a whisper. With nothing held or sent, it follows your voice.
KEY and SCALE
Chords in the song's key
12 keys and 13 scales, from MAJOR and MINOR to the modes, the pentatonics and BLUES, for TRIAD and FOUR. Set them once for the song: presets keep them. There is no automatic key detection; POWER and SINGLE fit any key.
CLARITY
Words you can understand
Puts your own S, T and F sounds, above 4 kHz, back on top, so the words stay clear where a vocoder on its own blurs them. Above 50 % it adds your voice's top end from 2.5 kHz too. At 0 % you hear the vocoder alone.
FORMANT
A bigger or smaller machine
Down makes the machine bigger and darker, up smaller and brighter, from -100 to +100 %, without changing the notes. The small knob under CHORD, OCTAVE, moves every note down or up, -2 to +2: a deep machine under a high voice, or a small, bright one.
Stereo spread
Wide, and safe in mono
The chord's notes are shared out left and right with the root identical on both sides. The sides stay at least 0.6 correlated, so a mono fold loses at most about 1 dB and nothing cancels. SINGLE stays centred.
Level match
Fair comparisons, every time
The vocoder is matched to the loudness of your dry voice while you sing: every factory preset's average within about 0.9 LU of the dry at -10, -18 and -26 LUFS in, so switching it on compares the sound, not the volume.
LOW LATENCY
Sing through it live
Off, Ironchoir reads your pitch 60 ms ahead so each chord is ready when its first syllable arrives: about 67 ms, compensated by your DAW. On, about 7 ms for singing through it live, and each new chord lands 20 to 50 ms late.
MIX, IN and OUT
Fit it to the track
MIX blends the vocoder with your dry voice, equal power, kept in time with it. IN and OUT set the level either side, with meters, and a safety limiter keeps the vocoder under -1 dBFS.
12 sourced presets
Start from settings that work
In-key triads, warm seventies string chords, a slow wash, a talking lead, present words, a raw early machine, a bigger and a smaller machine, a whisper pad, keyboard chords and a drum loop that speaks, each built from a documented vocoder setting.
The pipes
See the bands sing
Nine iron organ pipes light with the vocoder's bands: the long middle pipes with the lows, the short outer ones with the highs, the left half with the left side. With ENGAGE off the pipes go dark.
Inside the plugin
The Ironchoir window: two big knobs, four carriers, the song's key and nine pipes that light with the sound.
Every feature
Everything in Ironchoir, down to the smallest switch.
43 features
The sound
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AUTO carrier
Hears the pitch you sing and plays the chord: no keyboard, no routing
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CHORD
SINGLE, POWER, TRIAD or FOUR: a talking lead to lush four-note chords
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KEY and SCALE
12 keys and 13 scales for in-key triads and four-note chords
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SMOOTH
25 ms to 1.5 s: crisp words to a slow wash
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CLARITY
Your own S, T and F sounds back on top, so the words stay clear
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FORMANT
A bigger, darker or smaller, brighter machine; the notes unmoved
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Lower or higher
Every note moved down or up, -2 to +2, for a deep or a small machine
Four carriers
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AUTO
Its own synth of five detuned saws, on the pitch you sing
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MIDI chords
Play up to eight held notes from a keyboard
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Any track as the carrier
A pad, a synth or a drum loop sent in becomes the sound that speaks
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Whisper
NOISE carries the words on breath instead of notes
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Never silent
With nothing held or sent, it follows your voice
Timing and mix
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Stereo spread, mono-safe
Root identical on both sides; at most about 1 dB lost in a mono fold
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Level-matched presets
Every preset within about 0.9 LU of your dry voice on average
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Latency reported
About 67 ms of look-ahead, compensated by your DAW
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LOW LATENCY
About 7 ms, for singing through it live
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MIX
The vocoder against your dry voice, equal power, kept in time
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Input and Output gain
-24 to +24 dB, with a safety limiter under -1 dBFS
Workflow and control
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A/B compare and A>B
Two complete settings, switch in one click
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Undo and redo
Step back and forward, or press Ctrl+Z
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MIDI Learn
Take complete control of your workflow: right-click any control, move a knob
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Host automation
Automate every control from your DAW
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ENGAGE
Click-free bypass, to hear the before and after
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IN and OUT meters
See the level going in and coming out at a glance
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Tooltips
Every control explains itself as you point at it
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Resizable window
75 to 200 %, and the size you pick is remembered
Presets
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12 factory presets
Each one built from a documented setting
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Previous and next arrows
Audition presets one click at a time
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Save your own
Keep your settings as .vocoderpreset preset files
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Open presets folder
Back up or share your presets in one click
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Reset to default
Back to a clean start in one step
Performance
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Mono or stereo
On a mono or stereo track; a mono track gets the exact mono fold
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About a third of a core
33 to 35 % of one core at 44.1 or 48 kHz; a few percent in silence or at MIX 0 %
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Any session rate
Tested at 44.1, 48 and 96 kHz
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Audio-reactive face
Nine organ pipes lit by the vocoder's bands
Licence and compatibility
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VST3 and AAX, Windows 7 SP1 or later
Loads in any 64-bit Windows DAW with VST3 or AAX
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VST3, AU and AAX, macOS 10.13 or later
Loads in any Mac DAW with VST3, AU or AAX, Intel or ARM
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5 computers per copy
Studio, laptop and more on one licence
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Email and code unlock
No dongle, no password, no extra app
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Works offline
No internet needed between check-ins
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Check for updates
From the plugin's menu; nothing installs without asking
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Lifetime updates
Every future update included
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Platinum priority support
Questions answered by the people who build it
How Ironchoir compares
A vocoder that sings on its own, in key and in time, with the words kept clear.
| Ironchoir | Typical vocoder plugins | |
|---|---|---|
| Getting started | Sings the moment it's inserted: no synth, no MIDI, no routing | Often silent until a synth or MIDI track is routed in |
| Chords | From your sung pitch in the song's key, or from held MIDI notes | Often only what you play on a keyboard |
| Words | CLARITY puts the consonants back; SMOOTH from crisp to pad | Often blurred and hard to follow |
| Level | Matched to your dry voice on every preset | Often jumps with every note and vowel |
| Stereo | Wide, with the root identical on both sides; mono-safe | Often falls apart in mono |
| Carriers | Four: AUTO, MIDI, any track, or noise | Often one |
| Singing live | LOW LATENCY: about 7 ms | Often missing |
| Try-and-compare | A/B, A>B, undo and redo | Often missing |
| Hardware control | MIDI Learn on every control | Often host automation only |
| Licence | 5 computers per copy, no dongle, works offline | Often fewer activations, or a dongle |
| Updates | Lifetime updates included | Often paid upgrades |
"Typical" describes what we commonly see in this category; it does not describe any particular product. Ironchoir facts are from the plugin and its manual, October 2026.
What you get
Vox Samples
90-day money back · Thank you
Specs and system requirements
- Formats
- VST3 and AAX on Windows; VST3, AU and AAX on macOS
- Operating system
- Windows 7 SP1 or later, 64-bit; macOS 10.13 or later, universal (Intel and ARM)
- Host
- Any 64-bit DAW that loads VST3, AU or AAX plug-ins. No standalone app.
- Channels
- Mono or stereo in and out (a mono track gets the stereo sound's exact mono fold); an optional mono or stereo side input for an external carrier
- Sample rates
- Whatever your session runs at; tested at 44.1, 48 and 96 kHz. The vocoder runs at 96 kHz inside
- Latency
- Reported to your DAW: 2967 samples (about 67 ms) at 44.1 kHz, 3207 at 48 kHz, 6076 (about 63 ms) at 96 kHz. LOW LATENCY: about 7 ms (321 / 327 samples), 3 ms at 96 kHz. Presets never change it
- Chords
- SINGLE; POWER (the note, its fifth and the note higher up); TRIAD and FOUR, in KEY and SCALE
- Keys and scales
- 12 keys; 13 scales: CHROMATIC, MAJOR, MINOR, HARM MINOR, MEL MINOR, DORIAN, PHRYGIAN, LYDIAN, MIXOLYDIAN, LOCRIAN, MAJ PENTA, MIN PENTA, BLUES
- Carriers
- AUTO (its own synth on your sung pitch), MIDI (up to eight held notes), an external track, NOISE
- Bands
- 20, from 87 Hz to 7 kHz
- Tail
- Reported to your DAW: about 0.6 s at the default SMOOTH, up to about 12 s at 1.5 s
- CPU
- About a third of one core (33 to 35 %) at 44.1 or 48 kHz for the stereo vocoder; a few percent at MIX 0 % or after 250 ms of silence; the open window about 1.2 % more
- Presets
- 12 factory presets; your own as .vocoderpreset files
- Manual
- https://voxsamples.com/ironchoir-vocoder-manual
- Window
- 960 x 600 at 100 %, resizable from 75 to 200 %
- MIDI
- MIDI input for CARRIER MIDI (up to eight notes); MIDI Learn from any controller routed to the track
- Licence
- 5 computers per copy you buy. Unlock with your email and a code we email you. Checks in now and then and works offline in between.
- Internet
- Needed once to unlock, then for the occasional check-in
90Day money-back guarantee
Our guarantee
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90-day money-back guarantee
Not for you? Email contact@voxsamples.com within 90 days for a full refund.
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5 computers per copy
Use it on up to five of your own computers per copy you buy, and move it yourself from the plugin's Licence menu.
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Lifetime updates
Every future update and upgrade of Ironchoir, included.
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Platinum priority support
A real person at contact@voxsamples.com, first in line.
Try Ironchoir free
The whole plugin, with the same sound as the full version and no time limit. It goes silent for a moment every few seconds; the full version never does.
Windows and macOS installers in one download. Like what you hear? Get the full version on this page, with a 90-day money-back guarantee.
Questions
Do I need a keyboard or a synth?
No. On AUTO, the default, it hears the pitch you sing and plays a chord on it with its own synth. MIDI and the external carrier are there when you want to choose the notes or the sound.
Will the chords be in key?
POWER (the default) and SINGLE fit any key. TRIAD and FOUR use the KEY and SCALE you set in the footer (C MAJOR by default); there is no automatic key detection.
Why does it add latency?
It reads your pitch 60 ms ahead so each chord is ready when its note starts: about 67 ms in total, which your DAW compensates. LOW LATENCY cuts it to about 7 ms for singing through it live.
Can I play the chords myself?
Yes: CARRIER MIDI plays up to eight held notes from a MIDI track sent to the plug-in. With no key held it follows your voice again.
Can another track be the carrier?
Yes: choose the third CARRIER key and send any track to the plug-in's side input, such as a pad, a synth or a drum loop. A stereo track gives a stereo sound.
Does it work in mono?
Yes. A mono track gets the stereo sound's mono fold exactly, and the stereo spread loses at most about 1 dB when folded, with nothing cancelling.
How much CPU does it use?
About a third of one core at 44.1 or 48 kHz while it sings, a few percent at MIX 0 % or in silence, plus about 1.2 % for the open window.
Does it work in my DAW?
Any 64-bit DAW that loads VST3, AU or AAX plug-ins, on Windows 7 SP1 or later or macOS 10.13 or later. There is no standalone app.
How many computers can I use it on?
Up to five of your own for each copy you buy. To move it, deactivate it in the plugin on the old computer and unlock it on the new one.
Does it need the internet?
Once, to unlock it with the code we email you. After that it checks in now and then and works offline in between.
Is there a manual?
Yes. The full manual explains every control, every preset and the menus, with tips. It opens from the help key (?) in the plugin's top bar, and lives at https://voxsamples.com/ironchoir-vocoder-manual.
What if it's not for me?
Request a refund from your account within 90 days.
Founder's Story
"When COVID hit, I finally had time to dive into music production—only to discover I was missing the right tools. The plugins I tried were clunky, overloaded with unnecessary features, and killed my vibe with endless tweaking. I knew there had to be a better way.
So, with my engineering background, I started making free and simple audio plugins for my producer friends. They loved them! That’s when I set out on a mission to create plugins that save you time, streamline your workflow, and keep your creativity flowing."
- Ryan Svensson (Founder & CEO)
Every vocoder sound you've heard. One insert.
Chords from the pitch you sing, in the song's key, with words you can follow, level-matched, wide and mono-safe, and no keyboard or routing to set up.
$42.55 AUDNormaler Preis $141.86 AUD70% off
- 90-day money back
- Five computers
- Lifetime updates
Pairs with
Ironchoir Vocoder
$42.55 AUDNormaler Preis $141.86 AUD70% off