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レポート「2017 Breakthroughs In Spatial Audio Techno...

Avatar for Kutani Mio Kutani Mio
December 21, 2017
Technology
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レポート「2017 Breakthroughs In Spatial Audio Technologies 」

Avatar for Kutani Mio

Kutani Mio

December 21, 2017

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Transcript

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

    4

  2. ηογϣϯ֓ཁ • ॏཁͳ֓೦΍༻ޠΛཧղͨ͠ޙʹOculus͕։ൃͨ͠࠷ ৽ͷΦʔσΟΦٕज़Λ঺հɻ • Near Field HRTF΍Volumetric Sound SourcesͷΑ͏ͳ

    ৽͍ٕ͠ज़΍πʔϧ͕ɺήʔϜ΍ΞϓϦΛମݧ͍ͯ͠ Δਓʑͷ຅ೖײΛܶతʹ޲্ͤ͞Δखॿ͚Λ͢Δํ๏ ʹ͍ͭͯઆ໌ɻ

  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

  4. RiftͰͷVR Sound • 3JGUͰ͸ΦϒδΣΫτ͔Βௌ͜ ͑ͯ͘ΔԻ͕ɺΦϒδΣΫτ͕ ଘࡏ͢Δํ޲͔Βௌ͑ͯ͘͜Δ ༷ʹઃܭ͞Ε͍ͯΔɻ • ͨͩ͠ϓϨΠϠʔ͔ΒN͸཭ Εͨͱ͜ΖʹԻΛஔ༷͘ʹઃܭ

    ͞Ε͍ͯͨɻ • ͜͜Ͱ͍͔ͭ͘ͷ՝୊͕ൃݟ͞ ΕΔɻ

  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

  6. Volumetric Sound Sources • ݱ࣮ੈքͰ͸୯Ұͷ৔ॴ͔Βશ ͯͷԻ͕ฉ͑ͯ͘͜ΔΘ͚Ͱ͸ ͳ͍ɻ Ի͕େ͖͍ୌͷԻ͕ฉ ͑ͭͭ͜ɺผͷํ޲͔Βਓͷ࿩ ͠੠͕ฉ͑͜ΔͳͲ

     • 7PMVNFUSJD4PVOE4PVSDFT ͸σβΠφʔ͕α΢ϯυͷ൒ܘ Λࢦఆ͢Δ͜ͱͰɺ؆୯ʹԻΛ ϦΞϧʹදݱ͢Δ͜ͱ͕Ͱ͖Δ ༷ʹͳΔɻׂΓ౰ͯΔ൒ܘ͕େ ͖͍΄ͲɺԻ͕େ͖͘ͳΔɻ

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

    ϧͰ͋Δɻ

  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

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

    ͘ɻ