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Bucephalus is a unique physics-based sound design tool from Refined Stochastic Technology. Version 2.0 presents a brand new audio engine featuring granular-based synthesis utilising both a built-in library and your own custom samples. It includes an array of custom built effects including a "Chamber" reverb, three Filters (LPF, HPF and BPF), Distortion and master effects (Compression and Soft Saturation).


Five ball sizes controlled globally.
Highly accurate ball physics.
Add up to 20 balls simultaneously (6 on older devices).
Five fixed high quality custom resonance samples.
Variable ball hardness to blend between granular synthesis resonant and static collision sounds.
Variable elasticity and gravity.
Gravity controlled by accelerometer or with touch controller.
RST designed three stage Chamber Reverb unit.
RST designed distortion unit.
RST designed Filters (Lowpass, Highpass and Bandpass) with variable cutoff and resonance.
Master FX: Compression with variable Threshold/Ratio and Soft Saturation for analog-like breakup.
Audiobus support - connect to other audio apps in real time.

ADVANCED FEATURES (Available with in-app purchase)

Access to library of high quality custom resonance samples, with more coming in later versions.
Import your own samples via iTunes.
Ability to change tuning of notes over 10 octave range.
Fine tuning parameter for each ball size.
Customisable scales for each ball size with 10 save slots available.
ASR envelope filter customisable for each ball size.
Sample spread control to accurately trigger different sections of resonant sample over screen width and height.

What's New

Version 2.1

- Recording functionality added

- AudioCopy/Paste added

- Audiobus interface fixed

- UI improvements

Ratings and Reviews

2.6 out of 5

5 Ratings

5 Ratings

Neat idea, too little in the demo to judge, catch22


Everything is locked in the demo, so I can't quite tell what the app can do. Like the idea, though. Not a unique idea, but if it has a few freedoms that it's competitors don't offer it would make it stand out.. But can't tell without buying, won't buy before I can tell.

Control the Chaos. :-)


This is the best chaotic collider music app on the market.

Apparently I had & deleted this already once before...


...and now I see why.


Jonathan Papert
45.1 MB
Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Refined Stochastic Technology
In-App Purchases
  1. Advanced Features $7.99


  • Family Sharing

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

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