A Beamformer to Play with Wall Reflections: The Icosahedral Loudspeaker
The quote from Pierre Boulez, given as an epigraph to this article, inspired French researchers to start developing technology for spherical loudspeaker arrays in the 1990s. The hope was to retain the naturalness of sound sources. Now, a few decades later, one might be able to show that even more ca...
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| Veröffentlicht in: | Computer music journal 2017-09, Vol.41 (3), p.50-68 |
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| container_end_page | 68 |
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| container_issue | 3 |
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| container_title | Computer music journal |
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| creator | Zotter, Franz Zaunschirm, Markus Frank, Matthias Kronlachner, Matthias |
| description | The quote from Pierre Boulez, given as an epigraph to this article, inspired French researchers to start developing technology for spherical loudspeaker arrays in the 1990s. The hope was to retain the naturalness of sound sources. Now, a few decades later, one might be able to show that even more can be done: In electroacoustic music, using the icosahedral loudspeaker array called IKO seems to enable spatial gestures that enrich alien sounds with a tangible acoustic naturalness.
After a brief discussion of directivity-based composition in computer music, the first part of the article describes the technical background of the IKO, its usage in a digital audio workstation, and psychoacoustic evidence regarding the auditory objects the IKO produces. The second part deals with acoustic equations of spherical beamforming, how the IKO’s loudspeakers are controlled correspondingly, how we deal with excursion limits, and the resulting beam patterns generated by the IKO. |
| doi_str_mv | 10.1162/comj_a_00429 |
| format | Article |
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After a brief discussion of directivity-based composition in computer music, the first part of the article describes the technical background of the IKO, its usage in a digital audio workstation, and psychoacoustic evidence regarding the auditory objects the IKO produces. The second part deals with acoustic equations of spherical beamforming, how the IKO’s loudspeakers are controlled correspondingly, how we deal with excursion limits, and the resulting beam patterns generated by the IKO.</description><identifier>ISSN: 0148-9267</identifier><identifier>EISSN: 1531-5169</identifier><identifier>DOI: 10.1162/comj_a_00429</identifier><language>eng</language><publisher>One Rogers St., Cambridge, MA 02142-1209, USA: MIT Press</publisher><subject>Acoustics ; Arrays ; Beamforming ; Icosahedral phase ; Loudspeakers ; Music ; Sound ; Sound sources ; Spatialization</subject><ispartof>Computer music journal, 2017-09, Vol.41 (3), p.50-68</ispartof><rights>2017 Massachusetts Institute of Technology</rights><rights>Copyright © Massachusetts Institute of Technology.</rights><rights>Copyright MIT Press Journals, The Fall 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c420t-82de6fbb7e00475851b9e25d8dad462f4f634b88edd562934018c70344e4d2cd3</citedby><cites>FETCH-LOGICAL-c420t-82de6fbb7e00475851b9e25d8dad462f4f634b88edd562934018c70344e4d2cd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/26777075$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/26777075$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27901,27902,57992,58225</link.rule.ids></links><search><creatorcontrib>Zotter, Franz</creatorcontrib><creatorcontrib>Zaunschirm, Markus</creatorcontrib><creatorcontrib>Frank, Matthias</creatorcontrib><creatorcontrib>Kronlachner, Matthias</creatorcontrib><title>A Beamformer to Play with Wall Reflections: The Icosahedral Loudspeaker</title><title>Computer music journal</title><description>The quote from Pierre Boulez, given as an epigraph to this article, inspired French researchers to start developing technology for spherical loudspeaker arrays in the 1990s. The hope was to retain the naturalness of sound sources. Now, a few decades later, one might be able to show that even more can be done: In electroacoustic music, using the icosahedral loudspeaker array called IKO seems to enable spatial gestures that enrich alien sounds with a tangible acoustic naturalness.
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| ispartof | Computer music journal, 2017-09, Vol.41 (3), p.50-68 |
| issn | 0148-9267 1531-5169 |
| language | eng |
| recordid | cdi_projectmuse_journals_673168_S1531516917300115 |
| source | Jstor Complete Legacy |
| subjects | Acoustics Arrays Beamforming Icosahedral phase Loudspeakers Music Sound Sound sources Spatialization |
| title | A Beamformer to Play with Wall Reflections: The Icosahedral Loudspeaker |
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