Tag Archives: Digital filter

Using Audio ToolKit with JUCE 5

As some may have seen online, ROLI released a new version of JUCE. The nice thing is that they added a new tier for people like me who don’t sell plugins but who don’t want to release their code under the GPL license for diverse reasons (for me, it was formerly incompatibility between VST3 license and the GPL).

With JUCE 5, you have support for all major APIS, from VST2 to Audio Unit v3 and also AAX or VST3. And you can develop your own plugins. The caveat with this tier is that you have a splash screen and a tracking of your users… (actually, there is a flag to remove both). the advantage is that on MacOS, there is no more SDK conflicts, and I have Audio Unit 3 support

So I’ve started playing with Projucer and built a barebone ATK plugin that doesn’t do anything. What I can say is that the worst part is handling universal binaries, support 32bits plugins, as the JUCE project builder overwrites all my changes. Even adding ATK is painful with the project manager.

So instead, I’m going the WDL-OL here, and keeping this ATKJUCE plugin as the simple plugin I’ll duplicate by changing the names and its content. I have my builders that build the plugins and creates the installers, all that while keeping the same JUCE core code (it is shared by all plugins).

The next step is trying to make sense of the API to build a nicer GUI than what I currently have (probably something flat). Indeed, the tutorials on the GUI are small and too basic, but WDL-OL was no better in that aspect, but with more examples.

Announcement: ATKStereoUniversalDelay 1.0.0

I’m happy to announce the release of a stereo delay that allows ping-pong like effects based on the Audio Toolkit. They are available on Windows and OS X (min. 10.11) in different formats.

Continue reading Announcement: ATKStereoUniversalDelay 1.0.0

Announcement: Audio TK 2.0.0

ATK is updated to 2.0.0 with a major refactoring to ensure signed/unsigned consistency, new Adaptive module and EQ design. Complex-valued filters are also now available to allow simultaneous dual channel processes and advanced filters like complex LMS filters.
Continue reading Announcement: Audio TK 2.0.0

Audio Toolkit: Create a FIR Filter from a Template (EQ module)

Last week, I published a post on adaptive filtering. It was long overdue, but I actually had one other project on hold for even longer: allowing a user to specify a filter template and let Audio Toolkit figure out a FIR filter from this template.
Continue reading Audio Toolkit: Create a FIR Filter from a Template (EQ module)

Announcement: ATKChorus 1.1.0 and ATKUniversalVariableDelay 1.1.0

I’m happy to announce the update of the chorus and the universal variable delay based on the Audio Toolkit. They are available on Windows and OS X (min. 10.11) in different formats.

This release fixes the noises that can arise in some configuration.

Continue reading Announcement: ATKChorus 1.1.0 and ATKUniversalVariableDelay 1.1.0

Audio Toolkit: Recursive Least Square Filter (Adaptive module)

I’ve started working on adaptive filtering a long time ago, but could never figure out why my simple implementation of the RLS algorithm failed. Well, there was a typo in the reference book!

Now that this is fixed, let’s see what this guy does.
Continue reading Audio Toolkit: Recursive Least Square Filter (Adaptive module)

AudioToolkit: creating a simple plugin with WDL-OL

Audio Toolkit was started several years ago now, there are more than a dozen plugins based on the platform, applications using it, but I never wrote a tutorial explaining how to use it. Users had to find out for themselves. This changes today.

Continue reading AudioToolkit: creating a simple plugin with WDL-OL

Announcement: Audio Unit updates

I’m happy to announce the updates of all OS X plugins based on the Audio Toolkit. They are available on OS X (min. 10.11) in AU, VST2 and VST3 formats.

Continue reading Announcement: Audio Unit updates