rvbap - reverberated VBAP¶

Summary¶

• Description: rvbap is and extension to VBAP which tries to create a sense of distance by the usage of artificial reverb.
• Developer: Olaf Matthes
• Version: 1.0
• Platform: Pure Data, MaxMSP
• OS: Linux (PD only), MacOS 9, MacOS X, Vista, XP
• License:
• Status: in progress

Parameter definition¶

Coordinate system convention¶

• what is the underlying coordinate system?

Parameter describing a sound source¶

parameter	description	data format	range	initial state	unit	example	misc
2nd leftmost inlet of rvbap	azimuth	int	-∞... ∞	0	degree	10
3rd leftmost inlet of rvbap	elevation	int	-∞... ∞	0	degree	0
4th leftmost inlet of rvbap	spread the sound signal to multiple panning directions	int	0 ... 100	0	NA	100
5th leftmost inlet of rvbap	distance	float	1 ... ∞	1.0	meter	3	reverb is added if distance > 1

Parameter describing a virtual space¶

parameter	description	data format	range	initial state	unit	example	misc
depends on the applied reverb algorithm	amount of overall reverb	depends on the applied reverb algorithm	depends on the applied reverb algorithm	depends on the applied reverb algorithm	depends on the applied reverb algorithm	see example below

Parameter describing the position of loudspeakers¶

• Loudspeakers are defined by additional object "define_loudspeakers"
• max number of speakers 55

Defining loudspeaker through additional object "define_loudspeakers":¶

parameter	description	data format	range	initial state	unit	example	misc
ls-triplets	to define the triangular selection of loudspeakers	not documented	not documented	not documented	not documented	ls-triplets 1 2 7 2 7 8 1 3 7	for experts only
ls-directions 2	same than define_loudspeakers 2	i i ...			degree	ls-directions 2 -40 0 40 80 130 180 -130 -80	azi1 azi2 azi3 ...
ls-directions 3	same than define_loudspeakers 3	i i i ...			degree	ls-directions 3 -30 0 30 0 -90 0 90 0 0 0 -150 0 150 0 180 45 -45 45 45 45	pairs of circular coordinates:azi1 ele1 azi2 ele2 ...

Other parameter¶

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

Projects¶

• art or research projects utilizing this spatial renderer

References¶

• MaxMSP object + manual formally hosted by http://www.akustische-kunst.org/maxmsp/
• Pure Data CVS link to rvbap

External Links¶

• Workshop for Sound Spatialization with PD], Georg Holzmann

Media¶