Randrum – a weighted random drum sequencer

Randrum is a drum sequencer that uses weighted random values to trigger audio samples. The idea came from programming drum patterns using Pbind in SuperCollider (SC). In SC there is a pattern object called Pwrand (SC description: “Returns one item from the list at random for each repeat, the probability for each item is determined by a list of weights which should sum to 1.0.”) which I really liked and wanted to see how that would work in Max. Randrum is the result of this experimentation.

It is still very much a work in progress, so I will share my code in a later stage I guess.



Control stuff with M4L – update [26-05-2015]

I have made some stuff in MaxForLive to integrate SuperCollider and the Roland JP8000 synthesizer more into my workflow in Ableton Live.

– SuperCollider SynthDef control: Send values from Ableton Live to a SynthDef in SuperCollider. Map MaxForLive device dials to SynthDef arguments using the openObject Quark. M4L dials can be automated in Live, so you can automate your SynthDef parameters in your composition.


The SuperCollider_SynthDefCtrl M4L device has at its top left corner a text field where the  publish name of the SynthDef should be entered. To map a dial to a SynthDef argument simply change param_name into the SynthDef’s arg name. Each dial has its own lower and upper boundaries (default set to 0. to 1.0) and a lag value.

// to install OpenObject Quark:
// Find and check the OpenObject Quark and hit Apply

// to start OpenObject Quark in SuperCollider:

// I always use a gate arg, it's not mandatory though.
// You can change the gate argument in the M4L device
// to something else.

SynthDef(\synthie, {| gate=0, arg1, arg2, arg3... |

// some awesome SynthDef code


a = Synth(\synthie); // create a synth
a.publish(\synthie_or_something_else); // publish name


– Automate Roland JP8000 synth parameters in Ableton Live (not updated – 10-2014): Download





Max object: mxj pandorabot

Pandorabot mxj object for Max, to chat with pandora bots.

Pandorabot java source and class file on github.

Here is a Max patch where two bots talk to each other: Pandorabot.zip This max patch also uses the external [flite~] (to do text-to-speech, so it sounds like the two bots are having a conversation out loud), and my [mxj htmlsource]. Mxj htmlsource is used to get all the ID’s of the available bots you can chat with. Not all bots work correctly atm, because of the way they use/named html forms.

Here is a short video of one of their conversations: [vimeo https://vimeo.com/97649674]


Max Twitter Stream [update 26-09-2013]

I have just made my first two mxj objects for Max, using Twitter4j, a java library for the Twitter API. You can filter the live Twitter stream by using keywords, users or locations. I made this for a sonification project I am working on at the moment. Next to the live stream you can also search twitter data, view timelines, direct message friends and some other cool stuff. This is my first time using Java (next to some stuff made in Processing), most of the code is a slightly modified version of the Twitter4j examples. The mxj objects where made in Eclipse, you can find a short tutorial on how to set up Eclipse to start developing mxj objects here, and check the WritingMaxExternalsInJava.pdf located in the Max applications folder under java-doc. The idea of combining Twitter stream location data with a world map came from this project. If you want to use this code you have to get a Twitter Consumer key/secret and access token/secret, and put it in your java code at the ConfigurationBuilder stuff, highlighted in the code below. Maybe i will implement this into the code in the future to streamline this process, but for now you can find some info on how to get these keys on the Twitter developer forum.

Here is a short video:

[update 26-09-2013] :

  • Added Sentiment Analysis, with LingPipe, which is a toolkit for processing text using computational linguistics. Tweets are analyzed and categorized, the dot on the world map, representing the location of the Tweet, wil have a corresponding color (positive=blue/neutral=green/negative=red). Amount of pos/neu/neg Tweets are counted (so you can see the overall sentiment on topics or area’s). (Only works on Tweets written in English)
  • Added a daylight layer, which is a world map showing day/night around the globe and cloud coverage. You can change the opacity of the normal (grey scale) map, and the opacity of the daylight map.
  • Added search location by name rather than bounding box coordinates. Location names are converted to bounding box coordinates using the website: http://isithackday.com/geoplanet-explorer/ For this to work I created an extra MXJ object that imports a websites source into Max.

You can download the Max MXJ objects here: https://github.com/Haighton/mxj-objects

And the Max patches here.

Musical Scale Generator

Simple MIDI note generator application made in Max 6.
Generates MIDI notes based on different musical scales (major, minor, dorian phrygian, lydian, mixolydian and locrian).
The user has the ability to choose between different ways to play the generated note patterns (up, down, up/down, random and sequence). Notes can be turned off or on.
A sequence can be played forward, backwards or both. Up to 12 sequences can be stored. Time intervals and octave can be set and randomised with constraints.
At every parameter there is a green check box which randomises the parameter after a specified amount of measures or by a push of a button.

download MIDINoteGenerator_1.0.mxf

Simple Musical Scale Gen
Simple Musical Scale Gen

You need Max Runtime to run this application.

Shoebox Auditorium – Arrange your own soundscape

Device I built together with Guido Huijser for the course Sound, Space & Interaction at Media Technology. The device uses an Arduino Duemilanove, Parallax 28440 RFID reader/writer, Parallax RFID tags, Korg Nano Kontrol and a Macbook running Max 6.
The idea is based on the old kijkdoos; which is a sort of shoebox diorama.

The user can arrange his/her own sound collage by placing RFID tag card’s onto the glass plate, each card corresponds to a specific field recording. The user can adjust each sound its volume, stereo placement, playback rate and playback direction. 8 sounds can be played simultaneously. The user has the ability to record his/her own soundscape, which will then be uploaded to a server. By entering an email address, the user can receive a download link to their sound file.

We’ve recorded most of the sounds with the Soundman OKM II studio klassik solo binaural microphones. And some sounds with the built-in stereo microphone from the Zoom H4 portable recorder. The device uses two headphones so people can enjoy creating soundscapes together.


Here is a little sound sample:

Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.

Prototype Video:

Twitter Morse Stapler

Tired of using a lot of different buttons to type messages? Your boss hates it when you send a tweet at work? Then here is the answer you’ve been waiting for!

The Twitter Morse Stapler

Most functionality under just 1 button! Disguised as a typical office supply. Your boss will think you’ve had too much caffeine, or are heading towards a nervous breakdown.

So no more comments about slacking on the job.

For this assignment i’ve merged a really old and a relatively new way of communication with each other. A sort of literal translation of Old New Media.

The device uses an Arduino + software to translate morse code into text. Max/MSP reads these message from the serial port and uploads these, with a push of a button, to your Twitter feed.

Typing is Sooo 1868! Go morse instead! Dit Dit Dah Dit’s!

This device was made for a school project as tribute to Old New Media

Deteq LFO [update 1.0]

I’ve just updated my LFO (Low Frequency Oscillator) application for automating VST/AU parameters (or any other software that communicates with MIDI CC or OSC data).
It has 4 LFO’s and 4 MIDI + OSC output channels. The LFO’s can run by a given frequency, in sync with a Rewire host or synced by an incoming MIDI clock signal. Each LFO can be modulated (FM/AM) by any of the other LFO’s.  Available waveforms :

  • Sine
  • Triangle/Saw
  • Square
  • Random hold
  • Drawing (draw a waveform)

Download: DeteqLFO1.0.zip

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