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VBAP for Pure Data or MaxMSP

Version 7 (Nils Peters, 03/30/2010 11:37 pm)

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h1. VBAP for Pure Data or MaxMSP
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h1. Summary






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* Description: Vector Base Amplitude Panning for MaxMSP and Pure Data






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* Developer: Ville Pulkki






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* Platform: MaxMSP, Pure Data






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* Version: 1.03 (MaxMSP), 0.99 (Pure Data)






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* License:






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* needs to be connected to a matrix~ object






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* Status of this entry: finished






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h1. Parameter definition






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h2. Coordinate system convention






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* Spherical Coordinate System, [[Proposed_coordinate_systems|Navigational Style]]: zero degree to the front






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h2. Parameter describing a sound source






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|_. *parameter*     |_. *description*|_. *data format*|_. *range*|_. *initial state*|_. *unit*|_. *example*|_. *misc*|






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| 2nd leftmost inlet of vbap | azimuth  | int | -∞... ∞ | 1st argument, otherwise 0 | degree | 10 |    |






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| 3rd leftmost inlet of vbap | elevation | int | -∞... ∞ | 2nd argument otherwise 0 | degree | 0 |    |






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| 4th leftmost inlet of vbap | spread the sound signal to multiple panning directions | int | 0 ... 100 | 0 | percent | 100 |    |






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| rightmost inlet of vbap | gain control | float | 0 ... 2 | 1.0 | linear | 1.0 |    |






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h2. Parameter describing a virtual space






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* none






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h2. Parameter describing the position of loudspeakers






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* Loudspeaker layout must either be defined through additional object "define_loudspeakers", or by the message "define_loudspeakers" send to 1st inlet to vbap.






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* max number of speakers 55






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h3. Defining loudspeaker through message "define_loudspeakers":






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|_. *parameter*     |_. *description*|_. *data format*|_. *range*|_. *initial state*|_. *unit*|_. *example*|_. *misc*|






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| define_loudspeaker 2 | angular position data for 2D loudspeaker rig | i i ... |   | has to be defined before VBAP is used | degree | define_loudspeakers 2 -45 45 -135 135 | azi1 azi2 azi3 ...  |






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| define_loudspeaker 3 | angular position data for 3D loudspeaker rig | i i i ....  |   |   | degree | define_loudspeakers 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 ...  |






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h3. Defining loudspeaker through additional object "define_loudspeakers":






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|_. *parameter*     |_. *description*|_. *data format*|_. *range*|_. *initial state*|_. *unit*|_. *example*|_. *misc*|






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| 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   |






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| 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 ...  |






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| 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 ...  |






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h1. Projects






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* many






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h1. References






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* Pulkki, V. (2000). Generic panning tools for MAX/MSP. Proceedings of International Computer Music Conference, pages 304–307. "[pdf]":http://lib.tkk.fi/Diss/2001/isbn9512255324/article4.pdf






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* more references at the [[VBAP_-_Vector_Based_Amplitude_Panning|main VBAP WIKI page]]






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h1. External Links






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* "Search results for VBAP at www.maxobjects.com":http://maxobjects.com/?PHPSESSID=5017c25980cbce296ae66a89fce277fe&request=vbap&operateur=AND&id_format=0&id_plateforme=0&Submit=OK






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* "Workshop for Sound Spatialization with PD":http://grh.mur.at/misc/PdSpatialization.tar.gz], Georg Holzmann 






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h1. Media