レポート「2017 Breakthroughs In Spatial Audio Technologies 」

Transcript

1. 2017 Breakthroughs In Spatial Audio Technologies
   ۝୩ɹඒੜ
   in Oculus Connect 4
   

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2. ηογϣϯ֓ཁ
   • ॏཁͳ֓೦΍༻ޠΛཧղͨ͠ޙʹOculus͕։ൃͨ͠࠷
   ৽ͷΦʔσΟΦٕज़Λ঺հɻ
   • Near Field HRTF΍Volumetric Sound SourcesͷΑ͏ͳ
   ৽͍ٕ͠ज़΍πʔϧ͕ɺήʔϜ΍ΞϓϦΛମݧ͍ͯ͠
   Δਓʑͷ຅ೖײΛܶతʹ޲্ͤ͞Δखॿ͚Λ͢Δํ๏
   ʹ͍ͭͯઆ໌ɻ
   

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3. Իͷڑ཭ײ
   • ௨ৗɺࣗ਎ͷࠨଆ͔Β໐ͬͨԻ
   ͸ӈࣖΑΓ΋ࠨࣖͷํʹૣ͘ಧ
   ͘ɻ͜ͷ྆ࣖؒ࣌ؒࠩ͸਺ϛϦ
   ඵͱͳΓɺ೴͕Իͷ஗ΕΛೝࣝ
   ͢Δͷʹ͸े෼ͳ஋ͱͳΔɻ
   • ͜ΕΛϔουϑΥϯͰ%ύϯ
   ͢Δ࣌ʹҰ൪͍ۙεϐʔΧʔ΁
   ύϯɺͭ·Γࠨʹ͚ͩύϯ͢Δ
   ͱɺඇৗʹෆշͳମݧͱͳΔɻ
   • 73Ͱ͸ɺ௨ৗͷεϐʔΧʔͰ
   ͸ߦΘͳ͍)35'Λ࢖༻ͯ͠%
   ΦʔσΟΦΛ࣮ݱ͢Δɻ
   

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4. RiftͰͷVR Sound
   • 3JGUͰ͸ΦϒδΣΫτ͔Βௌ͜
   ͑ͯ͘ΔԻ͕ɺΦϒδΣΫτ͕
   ଘࡏ͢Δํ޲͔Βௌ͑ͯ͘͜Δ
   ༷ʹઃܭ͞Ε͍ͯΔɻ
   • ͨͩ͠ϓϨΠϠʔ͔ΒN͸཭
   Εͨͱ͜ΖʹԻΛஔ༷͘ʹઃܭ
   ͞Ε͍ͯͨɻ
   • ͜͜Ͱ͍͔ͭ͘ͷ՝୊͕ൃݟ͞
   ΕΔɻ
   

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5. Near-Field HRTF
   • NҎ্཭Εͨͱ͜ΖʹԻΛஔ
   ͘ɺͱ͍͏੍ݶ͕͋ΔͱɺϓϨ
   ΠϠʔͷ಄ͷۙ͘ʹԻ͕͋ͬͨ
   ৔߹ ྫ͑͹΢ΟεύʔϘΠεɺ
   ి࿩౳
   ɺදݱ͖͠Εͳ͍ɻ
   • /FBS'JFME)35'Λ࢖༻͢Δ͜
   ͱͰɺ಄ͷۙ͘Ͱ໐͍ͬͯΔԻ
   Λ࠶ݱ͢Δ͜ͱ͕Ͱ͖Δɻ͜Ε
   ʹΑͬͯैདྷͷNҎ্཭Εͨ
   Ի΋ɺΑΓਖ਼֬ʹϞσϧԽ͕Մ
   ೳͱͳΔɻ
   

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6. Volumetric Sound
   Sources
   • ݱ࣮ੈքͰ͸୯Ұͷ৔ॴ͔Βશ
   ͯͷԻ͕ฉ͑ͯ͘͜ΔΘ͚Ͱ͸
   ͳ͍ɻ Ի͕େ͖͍ୌͷԻ͕ฉ
   ͑ͭͭ͜ɺผͷํ޲͔Βਓͷ࿩
   ͠੠͕ฉ͑͜ΔͳͲ
   
   • 7PMVNFUSJD4PVOE4PVSDFT
   ͸σβΠφʔ͕α΢ϯυͷ൒ܘ
   Λࢦఆ͢Δ͜ͱͰɺ؆୯ʹԻΛ
   ϦΞϧʹදݱ͢Δ͜ͱ͕Ͱ͖Δ
   ༷ʹͳΔɻׂΓ౰ͯΔ൒ܘ͕େ
   ͖͍΄ͲɺԻ͕େ͖͘ͳΔɻ
   

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7. Volumetric Sound
   Sources
   • ൒ܘʹۙͮ͘ʹͭΕͯɺԻ͸େ
   ͖͘ฉ͑͜Δɻ
   • ͜Ε͚ͩͰ͸εέʔϧײΛಘΔ
   ͜ͱ͸Ͱ͖ͳ͍͕ɺԻΛ.JY͢
   Δͷʹ͸ඇৗʹ໾ཱͭॏཁͳπʔ
   ϧͰ͋Δɻ
   

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8. VR Soundͷॏཁੑ
   • 73։ൃऀʹରͯ͠ɺ4NVSEPO
   ࢯ͸ҎԼͷ༷ʹఏݴ͍ͯ͠Δɻ
   • ʮ։ൃαΠΫϧͷૣ͍͏ͪʹΦʔ
   σΟΦΛؚΊ͍ͯͬͨํ͕͍͍ɻ
   ࠓ·ͰͷήʔϜͱ͸ҧͬͯϓϨ
   ΠϠʔ͸౓ͷࢹքΛ࣋ͬͯ
   ͍·͢ɻΦʔσΟΦ͸ϓϨΠϠʔ
   ʹਖ਼͍͠ํ޲ΛݟͤΔखஈͱ͠
   ͯຊ౰ʹ໾ཱͪ·͢ɻΦʔσΟ
   Φ͸͜Ε·ͰҎ্ʹେ͖ͳ໾ׂ
   Λ࣋ͪɺՌ͍ͨͯ͠ΔͷͰ͢ɻʯ
   

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9. VR Soundͷະདྷ
   • ݱࡏ͸3JGUͷα΢ϯυ։ൃνʔ
   Ϝ͸ɺα΢ϯυϦϑϨΫγϣϯ
   ͷ՝୊ʹऔΓ૊ΜͰ͍Δɻ
   • ࠓޙͷ734PVOEͷൃలʹΑͬ
   ͯɺݱ࣮ͷੈքͷΑ͏ʹ73Λ
   ײ͡Δ͜ͱ͕Մೳʹͳ͍ͬͯ
   ͘ɻ
   

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