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

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

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

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

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

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

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