AudioKit is a new open source platform for audio synthesis, processing and analysis on iOS and OS X.
It’s evolved from the Csound computer language for audio. As CDM’s Peter Kirn notes, “what AudioKit is in effect is Csound as an audio engine, with Objective-C and Swift as the API.”
- 100+ Synthesizers and FX – Physical Models, Spectral Effects, Granular Synthesis, Effects Processing, Filters, Reverbs, and more.
- Built-in Sampler – Record audio streams, including from the microphone, into tracks you can name, recall, and process on-the-fly.
- Powerful Sequencing – Sequences are not limited to the usual notes-on-a-score, but can contain blocks of any code that can be triggered at any time.
- Full-featured Examples – The list of examples is growing, but already contains projects demonstrating audio techniques such as FM Synthesis, Granular Synthesis, Convolution, Effects Processing, and Pitch-Shifting, and more.
- Simple, Human-readable Code – Coding with audio with audio metaphors – Conductors control Orchestras, which contain Instruments that produce Notes. Clear methods with Apple-style naming conventions, Xcode completion, documentation and tool-tips.
- Write your audio-code along side your app logic – The same code that controls your data and user interface controls your sound in Objective-C or Swift.
Here’s a video intro:
Details on AudioKit are available at the project site.
If any readers are using AudioKit, let us know how you are using it and what you think of it!
via CDM’s Peter Kirn
9 thoughts on “AudioKit – An Open-Source Platform For Audio Synthesis, Processing, And Analysis”
Why can I not find what license it uses? “Open Source” is a vague marketing term not a legal term. This looks super awesome though!
GNU LESSER GENERAL PUBLIC LICENSE
Ok, so for the question everybody really wants to know: is LGPL compatible with the Apple app store? This isn’t the thing you just want to assume without being certain. Moreover, this is the kind of thing that would be awesome to have plainly stated on the website. The fact that it’s not makes me nervous; almost like you want people to get hooked using it and then later “oh, sorry LGPL can’t be used on the app store, but if you pay us we’ll license it proprietarily to you for commercial use”. Not saying that’s the case but any time the FSF is involved you can be sure the code is anything but “free”.
4. Combined Works.
You may convey a Combined Work under terms of your choice that,
taken together, effectively do not restrict modification of the
portions of the Library contained in the Combined Work and reverse
engineering for debugging such modifications, if you also do each of
a) Give prominent notice with each copy of the Combined Work that
the Library is used in it and that the Library and its use are
covered by this License.
b) Accompany the Combined Work with a copy of the GNU GPL and this license
c) For a Combined Work that displays copyright notices during
execution, include the copyright notice for the Library among
these notices, as well as a reference directing the user to the
copies of the GNU GPL and this license document.
d) Do one of the following:
0) Convey the Minimal Corresponding Source under the terms of this
License, and the Corresponding Application Code in a form
suitable for, and under terms that permit, the user to
recombine or relink the Application with a modified version of
the Linked Version to produce a modified Combined Work, in the
manner specified by section 6 of the GNU GPL for conveying
1) Use a suitable shared library mechanism for linking with the
Library. A suitable mechanism is one that (a) uses at run time
a copy of the Library already present on the user’s computer
system, and (b) will operate properly with a modified version
of the Library that is interface-compatible with the Linked
e) Provide Installation Information, but only if you would otherwise
be required to provide such information under section 6 of the
GNU GPL, and only to the extent that such information is
necessary to install and execute a modified version of the
Combined Work produced by recombining or relinking the
Application with a modified version of the Linked Version. (If
you use option 4d0, the Installation Information must accompany
the Minimal Corresponding Source and Corresponding Application
Code. If you use option 4d1, you must provide the Installation
Information in the manner specified by section 6 of the GNU GPL
for conveying Corresponding Source.)
Always sad to see good code wasted by the GPL, oh well.
From this agreement I think you can. Am I wrong? What do these terms mean?
Lesser GPL v3 – go to https://github.com/audiokit/AudioKit and click the LICENSE link. (Csound’s own license is also Lesser GPL, v2.1 or later.)
Yeah, the world needs more platform-dependant frameworks!
C sound with an easier GUI? Sounds great.