Realistic Choir simulator ranging from simple Chorus emulation to full ensemble Choir with 128 members.

Emo Chorus is a modulation effect used used to create a richer, thicker sound and add subtle movement. The effect roughly simulates the slight variations in pitch and timing that occur when multiple performers sing or play the same part.In contrast to most traditional chorus effect units Emo Chorus allows for astonishingly realistic big choirs with up to 128 voices !

Use live input from any source - Microphone, Guitar, Audiobus and Inter App Audio - or take a song from your iTunes library for processing.


• 128 voices chorus engine
• 20 factory chorus and flanger presets
• Unlimited user presets.
• Delay time up to 180ms.
• MIDI controllable parameter.
• Audiobus 3 compatible with state saving
• IAA compatible ( Auria, Cubasis, Garageband ).
• AudioUnit AUv3 with parameter automation.
• Integrated iTunes player.

What's New

Version 1.1.0

- AudioUnit AUv3 with parameter automation
- Audiobus 3

Ratings and Reviews

4 out of 5

11 Ratings

11 Ratings

Improves synth sounds

Chinchilla Wafers

Not a huge fan of typical 80's chorus, but I've been really happy with this effect. One of the special things it does is a convincing doubling effect, as well as a group choir effect, as well as flanging, chorus, and something approaching a short reverb/ambience. It has turned out to be a great sweetener for synth sounds.
I've exclusively used it in the effects slot in audiobus. Has been 100% stable for me, in that role. The state saving in audiobus has been really nice, it makes it easier to have it be a component to a preset sound.



Emo chorus is phenomenal! Incredibly versatile, smooth and stable. I'm really impressed by the range of character/timbre I've been able to achieve with this effect alone. From simple flange/chorus effects to ever evolving, heavily modulated fun. To top it all: no dsp zipper nonsense when modulating knobs and tweaking parameters in real-time. Very impressive, very useful stuff here.

Just Basic Effects


This app is a chain of effects, most can be found included in DAWs. However, if you need stand alone delay / doubler / stereo enhancement effects, this may be what you are looking for.


VirSyn Software Synthesizer
22.6 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2015 VirSyn Software Synthesizer


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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