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FM synthesis
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HORINOUCHI Masato
March 22, 2016
Technology
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32
FM synthesis
社内LT大会 0x64物語 #06 波
HORINOUCHI Masato
March 22, 2016
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Transcript
FM synthesis 2016/03/22 0x64 Tales #06 Wave Livesense Inc. HORINOUCHI
Masato
FM ͱ? पมௐ (frequency modula0on) ͱɺใΛൖૹͷप ͷมԽͰୡ͢ΔมௐํࣜͰ͋Δɻ ্: มௐલͷൖૹɺத: มௐʹ༻͍Δ৴߸ɺԼ:
ૹ৴ पมௐ - Wikipedia ͔ΒҾ༻
FMԻݯͱ? FMԻݯͷݪཧ ͔ΒҾ༻
ΦϖϨʔλʔ • ΦϖϨʔλʔ • ܗੜ & ܗ߹ث • ϞδϡϨʔλʔ •
पมௐΛߦͳ͏ͨΊͷܗΛग़ྗ • ΩϟϦΞ • Իͷߴ͞ʹ߹ΘͤͨपͰൃৼ • ϞδϡϨʔλʔͷܗͱ߹ͯ͠ग़ྗ FMԻݯͷݪཧ ͔ΒҾ༻
ΞϧΰϦζϜ • ΦϖϨʔλʔͷܨ͗ํͷύλʔϯ • 4ΦϖϨʔλʔ (4op) ͷ߹ɺԼه͕Ұൠత ॳԻϛΫͱYAMAHAͷγϯη ͔ΒҾ༻
ΈΜͳͬͯΔ FMԻݯͷԻ YAMAHA DX7ͰൃंϝϩσΟ (Japanese train sta3on melody)
YAMAHA DX7 • 1980લʹҰେϒʔϜͱͳͬͨσδλϧγϯηαΠβʔ DX7 Librarian Page ͔ΒҾ༻
VOCALOID 2 ॳԻϛΫ
ϛΫ͞Μͷ DX100 ͩͬͨઆ ࠓߋͳ͕ΒॳԻϛΫ ͔ΒҾ༻
ΈΜͳͬͯΔ(͔͠Εͳ͍) FMԻݯͷԻ ߗ͍ϕʔεͷԻίΠϯऔͬͨͱ͖ͷۚଐԻ͕͍͔ʹͳ FMԻݯ SONIC THE HEDGEHOG (1991) [1 of
6]
ΦοαϯϗΠϗΠ "OPۂʮTO MAKE THE END OF BATTLEʯɺήʔϜϛϡʔδοΫ্࢙ʹΔ໊ۂͷҰͭʹ͑ΒΕ͍ͯ Δɻ" -- Πʔε2ͱ
- χίχίେඦՊ Πʔε̎ Φʔϓχϯάൺֱಈըʲ΄΅શػछʳ
σϞ • ϒϥβʔ্Ͱಈ͘ FM Synthesizer • Web FM Synthesizer made
with HTML5 • ϒϥβʔ্Ͱಈ͘γϯηαΠβʔΛ࿈ܞಈ࡞͢ΔͨΊͷن֨ • WebMidiLink
·ͱΊ • ϝϦοτ • FMԻݯͷΈ؆୯ɻ • ෳࡶͳഒԻΛ࣋ͭܗΛੜͰ͖Δɻ • ܗΛϦΞϧλΠϜੜ͍ͯ͠ΔͨΊɺϝϞϦʔ༻ޮ͕ͱͯྑ͍ɻ •
σϝϦοτ • ܗΛ߹ͯ͠Ի৭Λ࡞ΔͨΊɺPCMԻݯͱൺֱ͢Δͱੜָثͷ࠶ݱੑ͍ɻ • ύϥϝʔλʔͷมಈʹΑΔഒԻมԽ༧ଌ͕͍ͨ͠ΊɺԻ৭࡞Γ͕ͱͯ͠ ͍ɻ
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠