Sine synthesizer with PureMVC

Screenshot

The past weeks I’ve been learning PureMVC. It had been on my mind for some time, and now that a project (a pianoroll type MIDI editor) became too complicated and the lack of structure took the fun out of programming I figured it was time for a nice new clean framework.

I read the ‘Framework Overview with UML’, the ‘Implementation Idioms and Best Practices’ and memorized the famous conceptual diagram with it’s interconnected cloud of meaningfull data blobs (see picture). I looked up some basic tutorials, ‘Minimalist MVC example using the PureMVC Framework’, ‘Building a Flash site using PureMVC’ and found this useful page: ‘PureMVC in a week’. And then felt ready for some PureMVC action of my own.

The PureMVC conceptual diagram

And I must say: It’s not as complicated as I feared it would be. The first hurdle is a bit high with a lot of concepts and rules to remember, but then it quickly becomes clearer what part of the code goes where. My previous framework experience was with Cairngorm which is MVC based as well, so that definitely helped me to get my head round PureMVC.

Here is my first PureMVC test project, done to check how the audio programming stuff would integrate with the framework: It’s a small synthesizer that plays sine waves. Only sine waves. You can use keys on the computer keyboard to play the synth as a piano keyboard (see picture for the keys) and use Z and X to switch octaves and C and V to change the volume. This keyboard layout was taken from Ableton Live. I like the way it works there. So thank you Ableton.

The source files are available again : Download the source files here.

Take note however that there is no FLA file. This is an ActionScript only project made in FDT. But if you want to compile it in Flash, it will probably work if you set App.as as the document root.

Use the computer keyboard to play