All posts by Matt

Computer Science engineer, with a PhD on signal processing Musician (drummer, bass player and sound engineer)

Audio ToolKit: Mailing list for beta testers

Recently, I’ve struggled with releasing perfect plugins. There were some glitches in the last 2 plugins that could have been avoided easily with more testing.

So this is a call for people who are interested in my plugins. You can join the mailing list, share your ideas of the current plugins, and the future ones, about what can be made better, how it can be better…

Announcement: ATKGuitarPreamp 1.0.0

I’m happy to announce the release of a modeling of the Vox AC30 preamplifier stage followed by a JCM800 tone stack based on the Audio Toolkit. They are available on Windows and OS X (min. 10.9) in different formats.

Continue reading Announcement: ATKGuitarPreamp 1.0.0

Announcement: ATKBassPreamp 1.0.0

I’m happy to announce the release of a modeling of the Fender Bassman preamplifier stage based on the Audio Toolkit. They are available on Windows and OS X (min. 10.9) in different formats.

Continue reading Announcement: ATKBassPreamp 1.0.0

Book review: OpenGL Data Visualization Cookbook

This review will actually be quite quick: I haven’t finished the book and I won’t finish it.

The book was published in August 2015 and is based on OpenGL < 3. The authors may sometimes say that you can use shaders to do better, but the fact is that if you want to execute the code they propose, you need to use the backward compatibility layer, if it's available. OpenGL was published almost a decade ago, I can't understand why in 2015 two guys decided that a new book on scientific visualization should use an API that was deprecated a long time ago. What a waste of time. [amazon_enhanced asin="1782169725" /][amazon_enhanced asin="B01FGMWRO8" /]

Analog modeling: Comparing preamps

In a previous post, I explained how I modeled the triode inverter circuit. I’ve decided to put it inside two different plugins, so I’d like to present in 4 pictures their differences.

Continue reading Analog modeling: Comparing preamps

Book review: Getting Started With JUCE

After the announce of JUCE 5 release, I played a little bit with it, and then decided to read the only book on JUCE. It’s outdated and tackles JUCE 2.1.2. But who knows, it may be a gem?

Continue reading Book review: Getting Started With JUCE

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)