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ブラウザ上で弾ける「あの楽器」を作ってみた
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Shota Kubota
May 08, 2015
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980
ブラウザ上で弾ける「あの楽器」を作ってみた
CodeGrid三周年記念パーティー on Zusaar
http://www.zusaar.com/event/7847057
で話した、ブラウザ上で弾ける「あの楽器」についての資料です。
Shota Kubota
May 08, 2015
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Transcript
ϒϥβ্Ͱ͚Δ ʮ͋ͷָثʯΛ ࡞ͬͯΈͨ @kubosho_ / Grani, inc.
CodeGrid 3प͓ΊͰͱ͏͍͟͝·͢ʂ
͋ͷָثʁ
ʲॳԻϛΫʳInnocenceʲ3DPVʳ http://www.nicovideo.jp/watch/sm5480792
http://www.tripshots.net/img/wp/wp_ano.jpg
͋ͷָث #ͱ • ʮʲॳԻϛΫʳInnocenceʲ3DPVʳʯ ͱ͍͏ಈըʹొ͢ ΔɺॳԻϛΫ͕͍͍ͯΔָث • ܗঢ়γϣϧμʔΩʔϘʔυʹ͍ۙɻ伴൫ʹ͋ͨΔ෦͕Ұ໘ σΟεϓϨΠʹͳ͓ͬͯΓɺλονͯ͠ԋ͢Δɻλον͢Δ ͜ͱͰσΟεϓϨΠ্ʹઢɺࡾ֯ܗɺ࢛֯ܗͳͲͷزԿֶ
༷͕͋ΒΘΕΔ (http://dic.nicovideo.jp/a/ %E3%81%82%E3%81%AE%E6%A5%BD%E5%99%A8 ΑΓ)
ͳΜ͔ͩ࡞Εͦ͏ʂ (֎আ͘)
࡞ͬͯΈͨ
http://bit.ly/anogakki ※IEඇରԠͰ͢ ※AndroidChromeͰ ݟ͍ͯͩ͘͞
ʮ͋ͷָثʯ Λࢧ͑Δٕज़
Web Audio API
Web Audio API • Web Audio API ͷ createOscillatorNode() ΛͬͯαΠϯ
Λੜ • ԻߴͷσʔλΛɺҰ୴ MIDI ϊʔτ൪߸ʹม͠ɺMIDI ϊʔτ൪߸͔Βपʹมͯ͠ɺoscillatorNode ͷ frequency.value ϓϩύςΟʹೖ͍ͯ͠Δ • touchstart or mousedown Πϕϯτ͕ى͖ͨΒɺੜͨ͠ ԻΛ࠶ੜͯ͠ɺ200ms ޙʹࢭΊΔͱ͍͏ॲཧΛ͍ͯ͠Δ
ԻߴΛपʹ͢ΔྲྀΕ “A4” (Իߴ) -> 69 (MIDIϊʔτ൪߸) -> 440 (प)
SVG
SVG • Snap.svg ͱ͍͏ϥΠϒϥϦΛ͍ɺ touchstart or mousedown Πϕϯτ͕ى͖ͨ ΒɺزԿֶ༷Λඳը͍ͯ͠Δ •
ಈըΛݟͭͭɺͲͷΑ͏ʹزԿֶ༷Λඳը ͢Δ͔ௐ (༷ͱ͔Ξχϝʔγϣϯͱ͔)
·ͱΊ
·ͩα൛ͳͷͰɺ σϞΛ৮ͬͯΈͯ ؾ͍ͮͨͱ͜Ζ͕͋ͬͨΒ issue ࡞͍ͬͯͩ͘͞ http://bit.ly/anogakki-issues
͋Γ͕ͱ͏͍͟͝·ͨ͠ Twitter: https://twitter.com/kubosho_ GitHub: https://github.com/kubosho