Grainstorm

The Secret Laboratory

In-app purchases

About this app

Use as/for:
• Tool for Sound Design
• Experimental Musical Instrument
• Fun

Key Features:
• Fast and lightweight
• Four tracks
• Stereo Mode
• Loads sound files of up to seven minutes length in any audio format
• Effects like Convolution Reverb, Channel Vocoder, Phase Vocoder

First use instructions:
1. Press POWER. Upper right power button turns on audio engine which is TURNED OFF on startup to save battery.
2. Press EJECT. Load a sound file.
3. Press PLAY.

A manual can be found here: https://grainstorm.rocks.me/instructions.html

There is an In-App-Purchase which among other things lets you record the output. Please consider the free version as a demo version.

Ratings and reviews

phenomenal!! part of my tool stack! My biggest wish is to have TWO quantization stacks added. A TIME based quantization that any TIME-based (Hz / cps) parameter can be quantized to nearest MUSICAL subdivisions (n/N with triples and dotted halfs) of a set tempo , AND quantization to FREQUENCIES as far as musical not frequencies (including CPS and Hz values). Then it will be perfect.

This app is a ton of fun for creating experimental tonality. Don't expect anything that's going to be easily loopable but do you expect to have a great time making noise. I'm anxious to plug it in and do some recording! I would love to have a version of this that I can pay for it that's a little bit more expansive with features (easy MIDI looping, a sequencer, etc. .) but I'm excited to have a new toy to play with. If the developers would like any feedback I would love to make some suggestions...

This app is an unpolished gem. Lots of great ideas and easy to get good sounds out of. Several of its time seek controls (speed + grain position) lead to very metallic sounds, indicating DSP issues. The rotary controls are unintuitive, not following the de facto standard most music software has landed on for vertical scrubbing. Output gain is too easy to slam. Aside from several issues like this it's one of the better granular synths available here, and definitely worth a try.

What's new

Bugfixes