Live on iOSDC2023 - Speaker Deck

Live on iOSDC2023

by h.crane

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Live on iOSDC2023 20230903 iOSDC2023 Rakuten Group, Inc. Hiromu Tsuruta / hcrane(͘Ε͍Μ)

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Swi f Ͱ Ի੠ϓϩάϥϛϯά͸ ָ͍ͧ͠ʂ

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ΤϨΩΪλʔʹ͍ͭͯ جૅ஌ࣝ

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ΤϨΩΪλʔ Ξϯϓ γʔϧυέʔϒϧ ΪλʔͷԻ͕ग़Δ࢓૊Έ ݭͷৼಈΛిؾʹม͑ͯɺΞϯϓͰ૿෯ͤ͞Δͬͧʂʂʂ

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ΪλʔͷԻΛม͑Δํ๏ ΪλʔͱΞϯϓͷؒʹɺΤϑΣΫλʔΛܨ͍ͰԻΛมԽͤ͞Δͬͧʂʂʂ ΤϨΩΪλʔ Ξϯϓ ΤϑΣΫλʔ

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ΞφϩάͱσδλϧͷԻ੠৴߸ΛɺΦʔσΟΦɾΠϯλʔϑΣʔεͰม׵͢Δͬͧʂʂʂ ΤϨΩΪλʔ Mac ΦʔσΟΦ ΠϯλʔϑΣʔε ΪλʔͷԻΛ PC Ͱѻ͏

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Xcode (Mac Catalyst) ֎෦͔Βೖྗͨ͠ԻΛग़ྗ͢Δ࠷খݶͷίʔυ ΪλʔͷԻΛ Swift Ͱѻ͏ ※ ΪλʔʹݶΒͣ֎෦ೖྗ͞ΕΔԻΛશͯѻ͑Δ AVAudioEngine ͕ೖྗԻΛऔ͖ͬͯͯ͘ΕΔͷͰɺࣽΔͳΓম͘ͳΓ޷͖ʹͬͧ͢ʂʂʂ

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AVAudioEngine·ΘΓ

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iOS 2.0~ CoreAudio ͷ౥ࡌ iOS 3.0~ AVAudioSession ͷ௥Ճ iOS 5.0~ Audio Unit ͷΤϑΣΫτΛ௥Ճ iOS 7.0~ Inter-App Audio ͷ௥Ճ iOS 8.0~ AVAudioEngine AVAudioUnit ͷ௥Ճ iOS 9.0~ AUAudioUnit ͷ௥Ճ   Audio Unit Extensions ͷొ৔ AVAudioEngine ͕ొ৔͢Δ·ͰɺϦΞϧλΠϜʹԻ੠Λૢ࡞͢Δͷ͸͔ͳΓෑډ͕ߴ͔ͬͨ… ΦʔσΟΦपΓͷ API Ξοϓσʔτ

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AVAudioUnit Ͱཉ͍͠ΤϑΣΫτΛ࡞Γɺattach ͯ͠ connect ͢Δ͚ͩʂ AVAudioEngine ͰԻΛ࿪·ͤΔίʔυྫ

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iOSDC 2018 AVAudioUnitE ff ect࣮ԋ by takopom iOSDC 2020 ࠓ೔͔Β෼͔ΔAVAudioEngineͷશͯ by s_urabe 👇👇 ৄ͍͠࿩͸աڈͷ iOSDC ͔Β 👇👇 Quite: https://speakerdeck.com/takopom/iosdc-2018-lt Quite: https://speakerdeck.com/yaminoma/jin-ri-karafen-karu-avaudioenginefalsequan-te

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ʢ౰વͳΜ͚ͩͲʣ AVAudioEngine ͸ ΪλʔͷԻʹಛԽͯ͠ͳ͍

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AudioKit

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Ի੠ॲཧ͕Ͱ͖Δ Swi f ϑϨʔϜϫʔΫ

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Try! Swift 2019 Swiftʹ͓͚ΔԻͷ੒ܗ by Adam Bell 👇👇 try! Swift Ͱ΋औΓ্͛ΒΕ͍ͯͨ 👇👇 Quite: https://github.com/b3ll/try-swift-2019/blob/master/Presentation.pdf

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Version 1.0~ ϦϦʔε(Csound ͷϥούʔ) Version 5.0~ AudioEngine ΫϥεΛίΞͱͨ͠େ෯ͳΞοϓσʔτ ݩʑ͸ Csound ϕʔεͩͬͨ΋ͷ͕ɺAVAudioEngine ʹมΘΓɺ͔ͳΓѻ͍΍͍ͬͧ͢ʂʂʂ AudioKit ͷྺ࢙ Version 3.0~ ίΞͷίʔυ͕ AVAudioEngine ʹͳΔ Version 2.0~ ϥΠϒίʔσΟϯάػೳͷ௥Ճ Version 4.0~ ػೳͷ֦ॆͱςετͷ௥Ճ Version 5.2~ ϥΠϒϥϦͷ Feature Խ Version 6.0~ Coming soon ※ Csound΋Ұ෦Ͱ࢖༻͍ͯ͠Δɻ·ͨ CoreAudio, C++ Ͱ͍͔ͭ͘ͷػೳ͸ิ͍ͬͯΔ

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Version 1.0~

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Csound ͷίʔυྫ ΦʔσΟΦϓϩάϥϛϯάͷͨΊͷυϝΠϯݻ༗ݴޠ

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Objective-C Ͱѻ͏ίʔυྫ ֎෦͔Β͸ӅṭԽͯ͠ɺ಺෦Ͱ Csound(.csd) Λੜ੒ͯ͠ѻ͏ͬͧʂ

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Version 3.0~

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AVAudioEngine Λϥοϓ͍ͯͯ͠ɺ͞Βʹ؆ܿʹॻ͚Δͬͧʂʂʂ AudioEngine ͰԻΛ࿪·ͤΔίʔυྫ

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Version 5.2~

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AudioKit (v5.2~) AudioKitEX AudioKitUI DevoloopAudioKit DunneAudioKit SoundpipeAudioKit SporthAudioKit STKAudioKit Controls Flow Keyboard Microtonality PianoRoll Tonic Waveform Core Feature Support

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DevoloopAudioKit

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Ϊλʔ޲͚ʹఏڙ͞Εͨ ϑϨʔϜϫʔΫ

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ίϯϓϨοαʔͱΞϯϓγϛϡϨʔλͷ͕̎ͭ༻ҙ͞Ε͍ͯΔͬͧʂ Quite: https://www.audiokit.io/DevoloopAudioKit/documentation/devoloopaudiokit DevoloopAudioKit ͷத਎

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ԻΛൺֱͯ͠ΈΑ͏ʂ

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GitHub - EffectPlayer Quite: https://github.com/crane-hiromu/E ff ectPlayer

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ͦ΋ͦ΋Ի͕มΘΔͬͯ Ͳ͏͍͏࢓૊Έͳͷʁ

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Իͬͯʁ

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Quite: https://www.chegg.com/learn/topic/characteristics-of-sound-waves Ի͕఻ΘΔͷ͸ɺ෺ମͷৼಈʹΑͬͯൃੜ͢Δ೾ͩͬͧʂ Իͷ೾

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Quite: https://www.chegg.com/learn/topic/characteristics-of-sound-waves ೾͸Ի৭͝ͱʹܗ΋ҧͬͯ͘Δ ೾ͷྫ

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Ի͸਺ࣜͰදͤΔʂ ※ ৚݅෇͖

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Quite: https://www.chegg.com/learn/topic/characteristics-of-sound-waves ϑʔϦΤڃ਺ ʢपظؔ਺Ͱ͋Ε͹ʣͲΜͳؔ਺Ͱ΋ࡾ֯ؔ਺ͷ࿨ͰۙࣅͰ͖Δ or ۠෼తʹ׈Β͔ ͔ͭ ࿈ଓ ͔ͭ ઈରՄੵ෼

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Quite: https://www.youtube.com/watch?v=ds0cmAV-Yek ؔ਺ͷ࿨Λදͨ͠ྫ

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Quite: https://www.nli-research.co.jp/report/detail/id=69307 ϑʔϦΤม׵ ೔ৗͷԻ͸पظతͳԻͱ͸ݶΒͳ͍ɻ   ແݶʹ௕͍पظΛ࣋ͭ΋ͷͱͯ͠ɺϑʔϦΤม׵Λͯ͠ѻ͑Δ Α͏ʹ͢Δɻ Quite: https://takun-physics.net/7994/

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೾ʹԿ͔ͨ͠Βͷ਺ࣜΛ࢖͑͹ԻΛม͑ΒΕΔͬͧʂ Իͷ೾Λ਺ࣜͰม͑Δ

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σΟετʔγϣϯ(࿪ΈԻ) Λ࠶ݱͯ͠ΈΔ

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Quite: https://kensukeinage.com/e ff ector_distortion_and_overdrive/ ԻΛաେ૿෯ͤ͞ΔͱɺΫϦοϐϯάݱ৅͕ى͖೾ܗͷҰ෦͕੾ΓऔΒΕɺ࿪ΜͩԻʹͳΔͬͧʂ σΟετʔγϣϯʢ࿪ΈԻʣͷ࢓૊Έ

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Quite: https://ja.wikipedia.org/wiki/γάϞΠυؔ਺ γάϞΠυؔ਺ Distortionʢ࿪ΈʣͷΑ͏ͳԻΛ࡞Δ৔߹͸ɺγάϞΠυؔ਺Λ࢖͏ͬͧʂ

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γάϞΠυؔ਺Λ Swift Ͱ࣮૷͢Δ Swift Ͱ͸ tanh ؔ਺͕༻ҙ͞Ε͍ͯͯ؆୯ͩͬͧʂ

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γάϞΠυؔ਺Λ Swift Ͱ࣮૷͢Δ + α ֎෦͔Β஋Λௐ੔Ͱ͖ΔΑ͏ʹม਺Λ͍͔ͭ͘༻ҙ͢Δͬͧʂ

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ΪλʔͷԻΛऔಘ͢Δ όοϑΝΛऔಘͯ͠ԻΛՃ޻͍ͯͬͧ͘͠ʂ

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γάϞΠυؔ਺ͰԻΛՃ޻͢Δ ϑϨʔϜ͝ͱͷαϯϓϧ஋ΛɺγάϞΠυؔ਺ͰมԽͤ͞Δͬͧʂ

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ॲཧ͕஗Ԇ͢ΔͷͰ C++ Ͱ࣮૷͠ͳ͓͢

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γάϞΠυؔ਺Λ C++ Ͱ࣮૷͢Δ ԻΛՃ޻͢ΔͨΊͷ DistortionProcessor ΫϥεΛ༻ҙ࣮ͯ͠૷͍ͯͬͧ͘͠ʂ Swift C++

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ԻͷՃ޻͢Δ෦෼Λ C++ Ͱ࣮૷͢Δ ಈ࡞Λૣ͘͢ΔͨΊʹνϟϯωϧͷ਺͚ͩฒྻॲཧ͍ͯ͠Δͬͧʂ ※ ಈ࡞͢ΔίʔυΛఏ͍ࣔͯ͠·͕͢ɺ៉ྷͳίʔυ͔Ͳ͏͔ͷอূ͸Ͱ͖·ͤΜ

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Objective-C++ ͰϒϦοδίʔυΛ࣮૷͢Δ C++ ͸ Swift ͔Β௚઀ݺͼग़ͤͳ͍ͷͰɺObjective-C++ ͰϒϦοδ͢Δͬͧʂ

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ΪλʔͷԻΛऔಘ͢Δ Objective-C++ ͔ΒϝιουΛݺͿ͚ͩʂ

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ઌ΄ͲͷϦϙδτϦʹαϯϓϧೖͬͯ·͢ʂ Quite: https://github.com/crane-hiromu/E ff ectPlayer

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C++ Ͱ Ի੠ϓϩάϥϛϯά͸ ָ͍ͧ͠ʂ Swi f