Hey all,
The DAFx (Digital Audio Effects) 2020 conference is happening this coming week. Due to… well, you all know why… the conference will be happening online, and will be entirely free! There’s a ton of really interesting research being presented, but here’s a few things I thought might be interesting to the VCV Rack folks:
Virtual Analog:
- Taming the Red Llama: The first VA model of a CMOS inverter circuit (at least that I’ve seen)
- Antiderivative Antialiasing in Nonlinear Wave Digital Filters: WDFs are a really cool circuit modelling paradigm, and Antiderivative Antialiasing (ADAA) is a great way to reduce aliasing artifacts without only a modest amount of oversampling.
- Moog Ladder Filter Generalizations: A more general way to look at the Moog Ladder architecture, with some neat-looking results. (If you’re not already familiar with Kurt Werner’s work, definitely look at more of his papers, he’s fantastic)
General DSP:
-
Bistable Digital Audio Effect: This effect looks brilliantly simple, and sounds pretty darn good. Maybe I’ll go ahead and make a module of it (unless someone else beats me too it
) - Practical Linear and Exponential Frequency Modulation: Some interesting ideas around FM synthesis.
- The Feedback Delay Network Toolbox: Sebastien Schlecht is a world expert in artifical reverb, particularly FDNs. This looks like a neat tool to help you design your own!
- Neural Modelling of Time-Varying Effects: Alec Wright had a great paper last year on doing neural modelling of distortion effects. This year, he extends his work to time-varying effects. These models can be efficient enough to run in Rack!
For Rack itself:
- GPGPU Patterns for Serial and Parallel Audio Effects: I believe there’s been some talk about potentially using GPU’s to improve the performance of Rack’s audio processing, which hasn’t really panned out. I don’t claim to fully understand it, but this paper seems to have figured out some tricks for using GPU’s for improving the performance of running multiple instances of audio plugins. I know the author a little bit, if anyone wants to get in touch with him about this.
Also (shameless plug), I’ve got a couple of my own papers at this year’s conference as well: a more technical paper on nonlinear filters, and a much sillier paper on water bottle synthesis.
Hope to see you there!
