how to connect

who we are

Boulanger Labs specializes in the creation of innovative and unique audio tools and is dedicated to all who delight in creating and sharing beautiful noise.

where to reach us

what we create

csGrain is the first in a new line of innovative and imaginative Csound-based audio tools for the iPad.


csGrain has ten core effects; Pitch Shift, Ring Modulation, Chorus, Flanger, Delay, Reverse, High-Pass Filter, Low-Pass Filter, Reverb, and SyncGrain (a real-time granular synthesizer). A Compressor and Limiter are also included for post-processing.

You can record and edit audio from within the app or import audio from iTunes, Dropbox, or AudioCopy to remix in real-time.


Use the SoundCloud player to listen to audio examples of some of csGrain's presets. All of the audio was recorded directly from the application with no further processing and should give you an idea of the variety of sounds that csGrain is capable of producing.


© 2012 Boulanger Labs. All rights reserved.