Tag: Max/MSP

Random walk synthesizer

40 voices of “drunken” motion in Max

Audio engine and concept stolen from Sam Tarakajian

Screen Shot 2015-03-09 at 9.19.38 PM



folder: poly-synth-drunk.maxpat


  • poly-synth-drunk.maxpat
  • boids_poly-tz.maxpat

You may notice similarities to dude837’s Boids sonificiation patch. http://reactivemusic.net/?p=18388 The swarm was replaced by drunken dots.


ep-341 Max/MSP – Spring 2015 week 7

The Live Object Model in Max for Live.

Screen Shot 2015-03-04 at 12.43.39 PM

Several ways of working with Ableton Live parameters in a M4L patch. (This is an improved version of the patch we built in class) http://reactivemusic.net/?p=18401

The Live Object Model description: https://cycling74.com/docs/max5/refpages/m4l-ref/m4l_live_object_model.html

In the coming weeks we will build synthesizers and work with control surfaces in M4L


Build 3 or more M4L devices, including one of each of the following

  • An audio effect
  • An instrument
  • A Midi effect

Its ok to adapt and “improve” an existing device.

Please bring in your work in progress for next week and be prepared to demonstrate something. The entire assignment will not be due until March 31.


Boids sonification in Max

“Boids is a bird flight and animal flock simulator. It is based on the same algorithm which was used in “Jurassic Park” for herding dinosaurs.”

Max external by Singer, Jasch, Sier and Smith. Tutorial by dude837



folder: boids

project: boids23

patch: main-tz.maxpat (slight modification to enable existing presets to work)

Screen Shot 2015-03-02 at 9.49.09 AM

  • Download version 1.1 from http://s373.net/code/ (in the section called “boids for max”)
  • Then add the path to the downloaded folder to Max objects | file preferences

Screen Shot 2015-03-02 at 10.02.09 AM

Fractal drawing in Max

Fractal geometry with Jitter.

By Peter Elsea

Screen Shot 2015-02-23 at 11.14.14 AM

“Fractal geometry is the study of objects that have a property known as self- similarity – They are made up of smaller copies of the overall shape. One of the most popular is called the Sierpinski triangle”

The Max patches were developed (stolen) from Elsea’s lecture notes at http://peterelsea.com/Maxtuts_jitter/Fractals_in_Max.pdf. The first patch draws Sierpinski triangles. The second patch is generalized to circular shapes with N corners.

Screen Shot 2015-02-23 at 11.14.57 AM



folder: fractals


  • fractal1.maxpat (triangle)
  • fractal-n-corners.maxpat (N corners)
external dependencies

You will need to download Elsea’s Lobjects abstractions and add the path to Max in Options | File Preferences: http://peterelsea.com/lobjects.html


Random dots in Max

Draw random colored dots on a 2d plane.

Screen Shot 2015-02-23 at 8.52.02 AM

Dots are superimposed on a world map using the lcd object.



folder: random-oval-paint

patch: random-oval-paint.maxpat

additional files: worldMap.jpg


Load the patch and click the toggle in the upper left corner to begin drawing. Number boxes allow you change rate and dot size. Click the purple “clear” message to start over.


Soft66lc FTDI driver issues in Mac Os

Notes: Since Mavericks, the Soft66lc SDR external has not been working in Max. Although I was not able to update the external, there is a temporary workaround.

Mac OS is hijacking the FTDI USB device with its own driver. You can unload the driver from terminal:

sudo kextunload -bundle com.apple.driver.AppleUSBFTDI

To reload the driver use “kextload”.

Here is  article from Sparkfun with details about this workaround: https://learn.sparkfun.com/tutorials/how-to-install-ftdi-drivers/mac

And a more elaborate workaround that removes the Apple driver: http://www.mommosoft.com/blog/2014/10/24/ftdi-chip-and-os-x-10-10/

Notes about latency and FTDI http://openbci.com/forum/index.php?p=/discussion/199/latency-timer-os-x-new-info-plist

The real solution involves using the new Apple driver to communicate with the device: https://developer.apple.com/library/mac/technotes/tn2315/_index.html

Or spoofing the driver with a codeless kext: http://stackoverflow.com/questions/7263648/codeless-kext-loading-problem