Sound in VR Robert Putnam putnambu edu New

Sound in VR Robert Putnam putnam@bu. edu New Voices and New Visions: Summer 2008

Outline l Video demonstration l DAFFIE sound server overview l VR sound workflow New Voices and New Visions: Summer 2008 2

Video demonstration l One-minute “flythrough” with four segments – Kiva – Dancer – Hoghan – Juniper New Voices and New Visions: Summer 2008 3

DAFFIE audio l Soundserver – Plays sound files associated with objects – Mixes many simultaneous sounds – Internet telephony support New Voices and New Visions: Summer 2008 4

DAFFIE localization All sounds are assigned a location in virtual space. l Typically, sounds are associated with visible objects, but “ambient” sound (e. g. , wind, nature) is supported too. l Direction and distance are indicated by variations in loudness among the loudspeakers – done automatically by soundserver. l New Voices and New Visions: Summer 2008 5

VR sound workflow (2006 -2007) l Sound design/theme – Language – Original music – Materials: sand, wood, stones l Record, select, and mix audio – Studio recording with Manny R. – Choose from multiple “takes” – Edit, mix (e. g. , story + fire sound effect) New Voices and New Visions: Summer 2008 6

VR sound workflow (cont. ) l Associate sounds with locations/objects – E. g. , bullroarer -> juniper tree l Test/adjust – Overall loudness/balance – Sound attenuation with distance – Trigger distance (proximity triggering) – Trigger interval (automatic triggering) New Voices and New Visions: Summer 2008 7