we here at dlab just launched our JUCE-based tool that allows to create VST plugins from Simulink models: http://audioplugingenerator.com/
It’s basically a rapid prototyping tool that allows to get a fully functional plugin from an algorithm within minutes (or hours or days, depending on the complexity of the algorithm…) without writing a single line of code. The GUI and the VST interface is implemented using JUCE.
The light version (limited to 1 input and 1 output) is free.
Yep, and there are some JUCEy buttons, too. And - psssst, that’s a secret - they feel pretty much at home on other platforms, too, and would like to spread to mobile devices.
Well, it’s as fast as you and Simulink make it… Think of it as regular C code. Basically, each Simulink block is transformed into nicely written code, but there’s some overhead due to the block-based structure, data logging infrastructure, etc.
In fact, the performance depends very much on the way you design your model. I recently implemented a sequencer + 3-voice FM synthesizer, and by simply optimizing my Simulink model (mainly by using vector data types and single precision floats), I could cut the processing time by about 75%. Now the Windows task manager CPU usage oscillates between 0% and 1% when it runs…
And - psssst, that’s a secret - they feel pretty much at home on other platforms, too, and would like to spread to mobile devices.