Month: May 2016

On modeling posts

May 29, 2016 Matt No Comments Electronic, Music, Digital filters, C++

I’m currently considering whether I should do more posts on preamps modeling or just keep implementing filters/plugins. Of course, it’s not one or the other, there are different options in this poll:

Modeling preamps: more or less?

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So the idea is to ask my readers what they actually want. I can explain how the new triodes filters are implemented, how they behave, but I can also add new filters in Audio Toolkit (based on different preamp and amp stages, dedicated to guitars, bass, other instruments), try to optimize them, and finally I can include them in new plugins that could be used by users. Or I can do something completely different.

So if you have any ideas, feel free to say so!

Announcement: ATKAutoSwell 1.0.0

May 10, 2016 Matt 14 Comments Digital filters, C++, Music

I’m happy to announce the release of a mono autoswell based on the Audio Toolkit. They are available on Windows and OS X (min. 10.8) in different formats.

This plugin applies a ratio to the global gain of a signal once it is higher than a given threshold. This means that contrary to a compressor where the power of the signal will never go lower than the threshold, for AutoSwell, it can.

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Analog modeling of a diode clipper (4): State-space

May 3, 2016 Matt 1 Comment Digital filters, C++, Electronic, Music
This entry is part 5 of 5 in the series Analog modelling of a diode clipper

Update: It seems I have misunderstood the DK method, so instead I’m using a variation of the Nodal Analysis, so this can be understood as a state-space MNA method.

When analyzing a circuit form scratch, we need to replace all capacitors by an equivalent circuit and solve the equation with this modified circuit. Then, the equivalent currents need to be updated with the proper formula.

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