Using Flash for MIDI

February 1, 2009

I’ve spent a long time trying to get Flash to speak MIDI effectively. It started quite a while ago with Alexis Isaac’s (now pretty much defunct) FlashMidi, which seemed to work fine at the time but is Windows only and firmly stuck in AS2.


…and AS2

…and AS2


Then I moved on to Red5, and many nights bombarding John Grden’s message boards. Whilst Red5 at first seemed great – it was certainly much more responsive than FlashMidi, and cross platform – I soon got stuck trying to send MIDI CC data. Sending notes was fine, which is great for things like triggering samples or turning effects on and off, but without Continuos Controller data there was no filter sweeps or volume changes. I’m not saying you can’t send MIDI CC data with Red5 – and I don’t see any reason you wouldn’t be able to – I just never found out how to do it. Oh yeah, and it’s biiig! Red5 Server came to around 55MB last time I checked. Then, it does do much more than just MIDI


Built using Red5

Built using Red5



Next I moved on to FLOsc, which I had been aware of the whole time but never took into consideration. Whilst FLOsc sends OSC messages as opposed to MIDI, there are applications out there to convert between the two.

Most of what I have found regarding FLOsc has been using Flash to talk with MAKE boards. This turtorial over at got me started. He was using the FWiidom FLOsc AS3 Classes, which were obviously used for Flash and a Nintendo Wiimote. I only had to make a small change to the classes to get it to work properly with Occam, and we have Flash speaking MIDI!

I’ll post the classes (as long as the relevant people say it’s ok), and all my source code for anything related to the above as soon as possible.

UPDATE : Thanks to Adam at I’ve posted my updated versions of his AS3 classes. You can get them here.



January 30, 2009



Minimal MIDI > OSC

I had read about a utility for OS X called Occam, which converts OSC messages to MIDI, but I had a hard time tracking it down as all the links I could find were dead.

You can download it at Chandrasekhar Ramakrishnan’s new site,

It’s very minimal and very easy to use, and worked better for my application than OSCulator.


January 30, 2009

Here is a quick preview of  my new touchscreen, which just arrived in the post. I believe it came from a video jukebox.

The software running on the touchscreen is written entirely in AS3, connecting to FLOsc to send OSC data over a network to Occam, which converts OSC to MIDI to control Ableton Live.

I will be posting in more detail about each of these in the near future, just as soon as I get bored with doing filter sweeps on the touchscreen…