ZKM Zirkonium¶

Summary¶

• Description: Zirkonium was originally developed for the 47 loudspeaker equipped ZKM Klangdome, but can be adapted to other loudspeaker configurations of course. It spatialized source with the Sound Surface Panning technique (SSP). Zirkonium can be used as a stand-alone application for creating a multitrack , spatialized composition or simply as a tool for spatialization within another program.
• Manufacturer / Developer: ZKM, Chandrasekhar Ramakrishnan
• Version: described version
• Platform: Cocoa stand-alone application which can receive OSC
• OS: MacOS
• License:
• etc,...
• Status of this entry: in progress

Parameter definition¶

Coordinate system convention¶

• Spherical Coordinates: Navigational System on a unit sphere
  • No Distance value,
  • Azimuth has normalized values between -1.0 and 1.0,
  • Elevation from 0.0 (no elevation) to 0.5 (above head),
• Cartesian System: Shifted Mathematical System:
  • right-handed system, x to the front, y to the left

Parameter describing a sound source¶

Zirkonium can be remotely controlled via the OSC command /pan/az.
The syntax for this OSC message is: /pan/az <int:id><float:azimuth><float:zenith><float:az span><float:zn span><float:gain>

parameter	description	data format	range	initial state	unit	example	misc
	delta Azimuth, change in azimuth	float	[-∞ ... ∞]				is wrapped
	delta Zenith, a change in elevation	float	[0. ... 0.5]
	Azimuth Span	float	[0.0 .. 2.0]				0 (a point source) to 2.0 (an entire circle)
	Zenith Span	float	[0.0 0.5]				Ranges from 0 (a point source) to 0.5 (a 1/4 circle)
	X - coordinate, absolute value	float	[-1.0 ... 1.0]
	Y - coordinate, absolute value	float	[-1.0 ... 1.0]
	X Span	float	[0.0 .. 2.0]				0 (a point source) to 2.0 (an entire circle)
	Y Span	float	[0.0 .. 2.0]				0 (a point source) to 2.0 (an entire circle)
	Gain	float	0.0 ... +∞]

Parameter describing a virtual space¶

parameter	description	data format	range	initial state	unit	example	misc
spaceParameter1
spaceParameter2

Parameter describing the position of loudspeakers¶

parameter	description	data format	range	initial state	unit	example	misc
speakerParameter1
speakerParameter2

Other parameter¶

parameter	description	data format	range	initial state	unit	example	misc
miscParameter1
miscParameter2

Projects, sound, and music¶

• art or research projects utilizing this spatial renderer

References¶

• Ramakrishnan, C. (2009). Zirkonium: Non-invasive software for sound spatialisation. Organised Sound, 14(3):268 – 276.
• Ramakrishnan, C., Goßmann, J., and Brümmer, L. (2006). The ZKM Klangdom. In Proc. of the 2006 conference on New Interfaces for Musical Expression, NIME06, pages 140–143, Paris, France. [pdf]
• Manual [pdf]

External Links¶

• http://ima.zkm.de/%7Ecramakri/zirkonium/index.html
• http://on1.zkm.de/zkm/stories/storyReader$5041
• google code repository: http://code.google.com/p/zirkonium/

Media¶

• GUI screenshots
• Example patches
• things which might explain the listed content better