Tag Archives: pd

pd-external: pix_openni 0.10

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If you are working with Xbox Kinect Sensor here is another goodie for you – A pure data / Gem external to get Kinect rgb and depth streams as well as skeleton tracking and multiple hand tracking via OpenNI[ref name=”openni”]http://www.openni.org[/ref]

Download the packed Binaries for OSX and Windows pix_openni-0.10.zip .
Latest sourcecode available at github: http://github.com/kronihias/pix_openni

Look at this page if you don’t know how to install a Pd-External.

To control tilt, led and output accelerometer data you can use libfreenect based http://github.com/kronihias/freenect.
To get audio streams you can use libfreenect based http://github.com/kronihias/freenect_audio.
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pd-external: pix_freenect 0.10

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(C)2011 Matthias Kronlachner

Version 0.10 of pix_freenect external for Pure Data/Gem now available.
Sourcecode and binary for OSX and Ubuntu 11.10 available at github: https://github.com/kronihias/pix_freenect

Look at this page if you don’t know how to install a Pd-External.

The pix_freenect external can output rgb and depth simultaneously from multiple Kinect sensors.

Features:

  • open specific Kinect sensor by serial number – useful for multiple Kinect installations
  • output registered depthmap -> rgb and depth image are aligned
  • output depthmap directly as 16 bit [mm] values
  • resolution of rgb image can be set to 1280×1024

To get audio streams you can use http://github.com/kronihias/freenect_audio.
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IEM Computermusic Ensemble Concert Graz and Vilnius

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ICE @ Porgy&Bess ViennaOn Tuesday, March 20th, 2012 will be the next concert of ICE – IEM Computermusic Ensemble. This networkconcert will be held in two locations at the same time. Listen to it in Graz – Austria or Vilnius – Lithuania.
LMTA[ref name=”lmta”]Lithuanian Academy of Music and Theatre, Gedimino pr. 42, LT-01110 Vilnius, Lithuania[/ref] central building – Room 306, Vilnius
IEM[ref name=”iem”]Institute of Electronic Music and Acoustics, Inffeldgasse 10/3, 8010 Graz, Austria[/ref] Cube – Graz

Announcement in lithuanian language
Announcement in english language

concert starts at
20:00 Graz local time
21:00 Vilnius local time

“extended fields” – ICE (IEM Computermusic Ensemble)

Musicians:
– Jamilla Ballint
– Clara Hollomey
– Wen Liu
– Peter Venus
– Marian Weger
– Matthias Kronlachner (remote from Vilnius)
– Uluğ Can Kazaz (remote from Vilnius)
– guest: Daniel Hojka

Director: Winfried Ritsch
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pd-kinect-examples

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Find some examples about the usage of the externals pix_freenect, pix_openni, pix_threshold_depth, pix_depth2rgba, pix_head_pose_estimation on the Github page http://github.com/kronihias/pd-kinect-examples

In the moment just Mac OSX binaries of the externals are included. Windows binaries coming soon. Linux – please get the source from Github and build them by yourself.
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Live Interfaces

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I’ll be presenting my work for the Kinect sensor and Pure Data/Gem at the LIVE INTERFACES: Performance, Art, Music[ref name=”li”]Live Interfaces http://icsrim.org.uk/liveinterfaces/[/ref] conference.

Find the material here:
lipam2012-kronlachner-paper.pdf
lipam2012-kronlachner-poster.pdf

A substantial project report about all Kinect plugins and examples will be available soon.

Homage to Luciano Berio (1925–2003)

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Lithuanian Ensemble NetworkI was invited to perform with the Lithuanian Ensemble Network (LEN/LAT) at the “Jauna muzika” Festival 2013 in Vilnius and played the live electronics for the pieces:

  • Naturale for viola, percussion and recorded voice (1985)
  • Différences for ensemble and tape (1958-1959)
  • Altra voce for mezzo-soprano, alto flute and live electronics (1999)

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midi2rms – midi volume fader curve sampling

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volume-behaviorA very crucial and maybe often underestimated point for working with (volume) faders, especially in live electronics application is their curve/behavior. Which range does it cover? How fast does “it” get “loud”. What is the behavior around the +0 dB mark?

I sampled the midi volume fader behavior from several of the most popular Digital Audio Workstations. The difference is quite obvious as you can see in the graph to the right.

pd-fader-behavior-screenshotI made a Pure Data abstraction as replacement for the frequently used [fadtorms] or [dbtorms]. In connection with the .txt sample files it can be used to scale your midi fader input.
Get the abstraction including sample files and Matlab plots here:

midi2rms_0.11.zip