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EmotionalPitchConversion
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Cova8bitdots
August 26, 2019
Programming
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500
EmotionalPitchConversion
Tips of pitch conversion with Unity described in Japanese
Cova8bitdots
August 26, 2019
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Transcript
ΤϞ͍ϐονม Roppongi.unity
ΤϞ͍ϐονม ϐονͱ Pitch : Իఔɻ৺ཧతͳɻ Իָݱ(ϨίʔσΟϯάɾϥΠϒɾֶߍͷ෦׆etc.)ͰΑ͘͏ݴ༿ɻ ɹɹɹྫ) ϐον͕ߴ͍ɺϐον͕߹͍ͬͯͳ͍ جຊपɿϐονʹରԠ͢Δཧྔ [Hz]
ֶɾཧͷੈքͰͪ͜ΒΛ͏ɻ ਓؒͷಛੑɿԻఔ2ഒ ≠ प2ഒ ࢀߟɿཧྔͱ৺ཧྔͱΛͭͳ͙ mel(ϝϧ) ͱ͍͏ई͕͋Δ
ΤϞ͍ϐονม Ի ԻɿԻָʹ༻͍ΔԻߴͷ૬ରతͳؔͷجఈͰ͋Δ(by Wikipedia) →͋Δج४Իͷपʹର͠ଞͷԻͷपΛͲ͏ઃఆ͢Δ͔ͷϧʔϧɻ දతͳԻ ɾ७ਖ਼ɹɹɹɿશͯͷԻ͕؆୯ͳൺͰද͞ΕΔɻԻʹ͏ͳΓ͕ແ͍ ɾϐλΰϥεɿશ5(υͱιͷؔ)Ͱ͋Δपൺ3:2 Λ࿈ଓͰߦ͍
ɹɹɹɹɹɹɹɹ֤ԻͷൺΛܭࢉ͢Δํ๏ ɾதશԻɹɹɿ3(υͱϛͷؔ)͕७ਖ਼ʹͳΔΑ͏ʹશ5Λগ͠ڱΊͨԻ ɾฏۉɹɹɹɿΦΫλʔϒΛج४ʹ12ԻΛִؒʹׂɻ ɹɹɹɹɹɹɹɹͭ·ΓԻج४Իʹ2ͷ12ࠜ㲈1.059Λ͔͚ͨ ɹɹɹɹɹɹɹɹ(ࢀߟ:ϐΞϊͷௐɿฏۉ+ௐ࢜͞Μͷඍௐ)
ΤϞ͍ϐονม ૣૹΓɾר͖͠Ͱϐον͕มΘΔ ɾΧηοτςʔϓͷ͋Εʢ࣌Εʣ ɹɾͦͦ࠷ۙʮૣ͠ʯɻʮר͘ʯͷͳΜͯͳ͍ ݪཧɿ୯Ґ࣌ؒ͋ͨΓʹಡΈऔΔͷͷपظ͕૿͑Δ ɹ→प͕ߴ͘ͳΔ ɹ→Իఔ͕ߴ͘ͳΔ [ࢀߟ]σδλϧͰͷ࠶ݱɿ 1. αϯυ༻ͷϦϯάόοϑΝΛ༻ҙ(DSP্ͳͲ)
2. ݱࡏ࠶ੜ͍ͯ͠ΔόοϑΝͷࢀরϙΠϯλΛ༻ҙ 3. όοϑΝΛnݸඈ͠ͰಡΈऔΕnഒ
ΤϞ͍ϐονม UNITY ͷϐονม ɾAudioSource.pitch ɾ[-3.0f 3.0f] ͷൣғͰมߋ͕Մೳ(ج४1.0f) ɾมॲཧΧηοτςʔϓͳͲͱಉ͡ݪཧ(ৄࡉFMODΛղੳ͢Δඞཁ͋Γ) Α͋͘ΔSE࠶ੜϝιουྫ
ຊʹ͋Δൣғͷ దͳʹͯ͠େৎʁ
ΤϞ͍ϐονม ҆ఆ ҆ఆ ҆ఆ ҆ఆ ҆ఆ ෆ҆ఆෆ҆ఆ ෆ҆ఆෆ҆ఆ ෆ҆ఆ
ෆ҆ఆ ෆ҆ఆ ҆ఆ 2Ի໐Β͢߹ɺશମతʹׂͱෆ҆ఆ ˠෆڠԻʹͳΓ͍͢
ΤϞ͍ϐονม UNITY ͷϐονม ɾ༧Ί༻͢ΔԻʢεέʔϧͰՄʣ ɹΛఆ͓ٛͯ͘͠ ɾϥϯμϜͰͲ͏ͯ͠ߦ͍͍ͨ߹ ɹͦͷ༻ՄೳԻͷத͔Βநબ ɾίϯϘͱ͔ʹؔ࿈͢ΔͳΒίϯϘʹ ɹԠͯ͡IndexΛΠϯΫϦϝϯτͤ͞Δ
ΤϞ͍ϐονม ·ͱΊ ɾϐονͷมߋʮԻָతʯʹਖ਼͍͔͠Ͳ͏͔ඇৗʹॏཁͳ؍ ɾ͏·͘ϐονมΛ͑ૉࡐͷઅʹͳΔ ɾ୯७ͳϐονมߋ࣌ؒ࣠มߋͯ͠͠·͏͜ͱΛ೦಄ʹ͓͘ ɹɾ࣌ؒ࣠Λมߋ͠ͳ͍ϐονมผ్αϯυΤϯδϯΛར༻ or ԻݯΛ༧Ί༻ҙ ࢀߟɿ
ϐονมʹVocoderपͱεϖΫτϥϜแབྷͷௐͰߦ͏ํ๏͋ͬͨΓ͠·͢
ΤϞ͍ϐονม ొஃऀใ Twitter: @8bitdots ɾεϚϗήʔϜ࡞ͷUnityΤϯδχΞ ɾήʔϜͱαϯυେ͖ ࠓճͷσϞϓϩάϥϜɿ https://github.com/Cova8bitdots/SoundPitchTest