iPad Screenshots


csSpectral is a real-time, Csound-based, multi-effects processor featuring a Streaming Phase Vocoder and six other FFT-based spectral algorithms. The diverse collection of real-time DSP effects let you create unique textures and timbres by transforming your voice, your instrument, imported audio, or songs from your iTunes library. csSpectral also supports Audiobus, allowing you to send and receive audio from other apps, making the processing possibilities nearly endless.

What’s New

Version 1.1.1

- Audiobus updates
- Dropbox fixes
- Various fixes and updates
- Full 64 bit support.
- AudioBus 3 support.
- Updated DropBox support.

Ratings and Reviews

Rreenn2015 ,

A fine addition to the audio toolbox.

Looses 2 Stars for the spectral EQ module (which looks interesting) not working... at all, but otherwise worth the money for sound designers or those looking for less traditional but still musically useful effects.

ZenLizard ,


Shaping tools abound. An iPad 4th gen. barely seems to handle it in live mode with AudioBus and another app, even with visuals turned off.

If you own and older iPad, you may need to stick with off-line mode.

Long words ,

Cs spectral

Wow. This app slaps a gui on csound. It has almost limitless sound shaping capabilities with out the need to program. I have been waiting for something like this for a while now. Pure fun.
The more I play with it the more I like it! Soo many activities! It's a amazing effects machine.


Richard Boulanger
129.3 MB
Requires iOS 10.0 or later. Compatible with iPad.
Age Rating
Rated 4+
© 2017 Boulanger Labs


  • Family Sharing

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

More By This Developer

You May Also Like