Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Unity_VolumeEffect
Search
Cova8bitdots
January 29, 2019
Programming
2
4.5k
Unity_VolumeEffect
Unityオーディオ完全に理解した勉強会での登壇資料です
Cova8bitdots
January 29, 2019
Tweet
Share
More Decks by Cova8bitdots
See All by Cova8bitdots
Latest_Information_of_CICD_for_UnityAppWithAppleVisionPro
cova8bitdots
0
75
HandGestureTool for AppleVisionPro
cova8bitdots
0
110
NinjaGazeTyping 制作秘話
cova8bitdots
0
320
UnityとGoogleCloudFunction を連携して社内サービスを作った話
cova8bitdots
0
180
Unity-chan.Terrastal!!
cova8bitdots
0
420
ExampleOfTilemap2D
cova8bitdots
0
140
unity_lt_2021_Dec.pdf
cova8bitdots
0
850
HowToUseAudioMixer
cova8bitdots
0
150
TrapOfSpriteAtlas
cova8bitdots
0
5.2k
Other Decks in Programming
See All in Programming
知っているようで知らない"rails new"の世界 / The World of "rails new" You Think You Know but Don't
luccafort
PRO
1
160
print("Hello, World")
eddie
2
530
CloudflareのChat Agent Starter Kitで簡単!AIチャットボット構築
syumai
2
500
Flutter with Dart MCP: All You Need - 박제창 2025 I/O Extended Busan
itsmedreamwalker
0
150
Vue・React マルチプロダクト開発を支える Vite
andpad
0
110
プロパティベーステストによるUIテスト: LLMによるプロパティ定義生成でエッジケースを捉える
tetta_pdnt
0
330
開発チーム・開発組織の設計改善スキルの向上
masuda220
PRO
20
11k
@Environment(\.keyPath)那么好我不允许你们不知道! / atEnvironment keyPath is so good and you should know it!
lovee
0
120
奥深くて厄介な「改行」と仲良くなる20分
oguemon
1
540
Azure SRE Agentで運用は楽になるのか?
kkamegawa
0
2.2k
Laravel Boost 超入門
fire_arlo
3
220
機能追加とリーダー業務の類似性
rinchoku
2
1.3k
Featured
See All Featured
GitHub's CSS Performance
jonrohan
1032
460k
Optimising Largest Contentful Paint
csswizardry
37
3.4k
Code Reviewing Like a Champion
maltzj
525
40k
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
A Modern Web Designer's Workflow
chriscoyier
696
190k
Done Done
chrislema
185
16k
Automating Front-end Workflow
addyosmani
1370
200k
Building a Modern Day E-commerce SEO Strategy
aleyda
43
7.6k
Making the Leap to Tech Lead
cromwellryan
135
9.5k
Context Engineering - Making Every Token Count
addyosmani
3
43
A better future with KSS
kneath
239
17k
The Language of Interfaces
destraynor
161
25k
Transcript
Իྔͷجૅˍ ɹɹUNITY্ͰͷԻྔԋग़ UNITYΦʔσΟΦશʹཧղͨ͠
͡Ίʹ ొஃऀใ Twitter: @8bitdots ήʔϜͱαϯυେ͖UnityΤϯδχΞ ʢ≠αϯυΤϯδχΞʣ
Իྔͷجૅ Իྔʹ͍ͭͯ < ͜͜ͷSEͪΐͬͱ͏Δ͍͞Ͱ͢Ͷ ͦ͏ͨ͠ΒͱΓ͋͑ͣ3dB ఔԼ͛ͯΒ͑·͔͢ʁ> < (AudioSource.volume ͬͯ0.0~1.0 ͳΜ͚ͩͲͳ͊ɻ
ԿݴͬͯΔΜͩʁ) Έ͍ͨͳΓͱΓͷܦݧͳ͍Ͱ͠ΐ͏͔ʁ
Իྔͷجૅ Իྔʹ͍ͭͯ ▸ Իڹֶత؍ ▸ ʮԻྔʯͱ͍͏ݴ༿ͳ͘ʮԻѹʯʮԻͷڧ͞ʯʮԻڹύϫʔʯͳͲͷ ཧྔΛఆٛ ▸ Իѹ p[Pa]
ͷԻѹϨϕϧ(SoundPressureLevel) Lp [dB] p0 ɿج४Իѹ(1kHz ͷ࠷খՄௌԻ) = 2.0x10-5[Pa] ▸ σδλϧ৴߸ॲཧ [0.0 1.0] Ͱਖ਼نԽ͞Ε͍ͯΔͷͰͦͷରΛͱͬͯ͋͛Δ ˠ[-∞ 0.0] ʹม
Իྔͷجૅ Իྔʹ͍ͭͯ ▸ Ұൠతʹਓؒͷײ֮ྔ ཧྔͷରʹ΄΅ൺྫɹɹɹɹɹɹɹ ▸ ਓؒͷײ֮ʹ߹ΘͤͨԻྔ ˠϥυωε ϥυωεۂઢ(ISO226:2003) ʰԻڹֶೖʱΑΓҾ༻
ʰԻڹֶೖʱΑΓҾ༻
Իྔͷجૅ ϥυωεͷݱ࣮ ▸ ςϨϏͳͲͷ์ૹۀք ຽ์࿈ɿhttps://j-ba.or.jp/category/t032 ฏۉ: -24LKFS (Loudness K-weight Full
Scale)Ͱ౷Ұ ▸ ήʔϜۀքͰ ▸ ίϯγϡʔϚʔɿ2012ʹCEDECͰηογϣϯ͕͋ͬͨͷͷ… https://www.slideshare.net/IGDAJ_SigAudio/sigaudio1-cedec2012 ▸ ϞόΠϧɿTencent Ͱେମ-16LKFS ఔʹἧ͑ͨͱͷ͜ͱ https://cedil.cesa.or.jp/cedil_sessions/view/1806 ▸ UnityͰ ▸ AudioMixerʹVUϝʔλ͋Δͷͷ…
Իྔͷجૅ ԻׂΕ ▸ ԻྔΛ্͛ΔͱԻׂΕ͢Δ ˠԻ͕Ճ͞Εͨײ͡ʹฉ͑͜Δ ▸ ݪҼɿ Mathf.Clamp( ܗ, -1,
1 ) ͕ߦΘΕΔͨΊ
Իྔͷجૅ ԻׂΕ ▸ ݩܗ ▸ ԻׂΕ
ݩܗΛ4ഒʹ૿෯ ˠܗαΠζௐ ˠ0.5 Ҏ্,-0.5ҎԼ͕ਅͬฏΒʹ εϖΫτϥϜ εϖΫτϥϜ ܗ ܗ ԻׂΕ͕ى͖ΔˠۣܗΈ͍ͨʹܗ͕มԽ͍ͯ͠Δ
Իྔͷجૅ ԻׂΕ ԻׂΕͰܗ͕ۣܗͬΆ͘ͳͬͨ ˠۣܗʹ͍ͭͯߟ͑ͯΈΔ ▸ ϑʔϦΤڃల։ ▸ ͬ͘͟Γͱͨ͠આ໌ɿ पظؔΛsinͱcos ͦΕͧΕͷഒԻΛͲΜͲΜ͠߹Θͤͯۙࣅ͢Δදݱ
▸ ஸೡͳઆ໌ɿ पظTͷؔf(t) ΛۮؔͱحؔͷͰදݱ εϖΫτϥϜ εϖΫτϥϜ ܗ
Իྔͷجૅ ܗͱϑʔϦΤڃల։ ▸ ۣܗΛϑʔϦΤڃల։Λͬͯදݱͯ͠ΈΔ حؔͳͷͰۮؔ(an )શͯ0 حؔ
Իྔͷجૅ ۣܗΛϑʔϦΤڃల։Ͱදݱ Sin(t) ͷΈ
Իྔͷجૅ ۣܗΛϑʔϦΤڃల։Ͱදݱ Sin(3t) ·Ͱͷ
Իྔͷجૅ ۣܗΛϑʔϦΤڃల։Ͱදݱ Sin(5t) ·Ͱͷ
Իྔͷجૅ ۣܗΛϑʔϦΤڃల։Ͱදݱ Sin(11t) ·Ͱͷ
Իྔͷجૅ ۣܗΛϑʔϦΤڃల։Ͱදݱ Sin(21t) ·Ͱͷ
Իྔͷجૅ ۣܗΛϑʔϦΤڃల։Ͱදݱ Sin(41t) ·Ͱͷ ͍ͩͿۣܗʹ͍͍ۙͮͯΔͷͷ ͕·ͩݟ͑Δ
Իྔͷجૅ ۣܗΛϑʔϦΤڃల։Ͱදݱ Sin(101t) ·Ͱͷ ·ͩߥͿ͍ͬͯΔ͕ தԝ͍ۙͩͿ͕ࡉ͔͘ͳ͖͍ͬͯͯΔ
Իྔͷجૅ ۣܗΛϑʔϦΤڃల։Ͱදݱ Sin(201t) ·Ͱͷ ͔ͳΓݟۣͨܗͬΆ͘ͳ͖͍ͬͯͯΔ
Իྔͷجૅ ۣܗΛϑʔϦΤڃల։Ͱදݱ ۣܗΛࡾ֯ؔͰදݱ͢Δʹߴ࣍ഒԻͷॏͶ߹Θ͕ͤඞཁ https://github.com/Cova8bitdots/FourieSample
Իྔͷجૅ ԻׂΕʢ·ͱΊʣ ▸ ۣܗɿSinͷߴ࣍ഒԻ·ͰͷॏͶ߹ΘͤͰදݱ ▸ ԻׂΕঢ়ଶˠܗ͕ۣܗνοΫʹՃ͞ΕΔ ɹɹɹɹɹˠߴ࣍ഒԻ͕উखʹ͞Εͯ͠·͏ ɹɹɹɹɹˠԻ৭͕มΘΔ ▸ ԻΛॏͶͯ໐Β࣌͢ؾΛ͚ͭΑ͏
UNITY ্ͰͷԻྔԋग़ Իྔʹؔ͢Δԋग़ྫ • ϑΟϧλ/ΤϑΣΫτʹΑΔ੍ޚ • ScriptʹΑΔ੍ޚ
UNITY ্ͰͷԻྔԋग़ Իྔʹؔ͢Δԋग़ྫ • ϑΟϧλ/ΤϑΣΫτʹΑΔ੍ޚ • ScriptʹΑΔ੍ޚ
UNITY ্ͰͷԻྔԋग़ Իྔʹؔ͢Δԋग़ྫ ▸ UnityͰ༻ՄೳͳϑΟϧλ ▸ LowPassFilter ߴԻҬΛΧοτɻ ήʔϜͷϙʔζதͳͲʹ༻͞ΕΔ͜ͱ͕ଟ͍ ▸
HighPassFilter ԻҬΛΧοτɻ LPFͱΈ߹ΘͤͯBandPassFilterͱͯ͠ར༻ BPFͳΒதҬͷΈ௨աͰϥδΦͬΆ͍ԋग़ [༻ޠઆ໌] ΧοτΦϑपfc ɿ ύϫʔ͕6dB Լ͢Δͷप Q: ɹQ͕ߴ͍ͱϑϥοτͳ෦͕ଟ͍ ɹ͍ͱ࠷ॳ͔ΒΏͬͨΓͱԼ͢Δ(LPF) ڞৼप όϯυ෯ ʰԻڹֶೖʱΑΓҾ༻
UNITY ্ͰͷԻྔԋग़ Իྔʹؔ͢Δԋग़ྫ ▸ AudioMixerΛͬͯͷදݱ ▸ LowPassEffect ▸ HighPassEffect ▸
FadeIn/FadeOut SnapShotͷΓସ͑ʹΑΓࣗಈͰϑΣʔυ͕͔͔Δ ▸ μοΩϯά ϘΫγϯάͷ͔͕Ήಈ࡞͔Βདྷ͍ͯΔ༻ޠ ଞͷԻ͕໐Δͱ͖ʹࣗʢେBGMʣͷԻྔΛԼ͛໐ΓऴΘΔͱಉ࣌ʹԻྔΛݩʹ͢ԋग़ ▸ αΠυνΣʔϯೖྗʹΑΔμοΩϯά ଞͷԻ(ϕʔεԻ, υϥϜͷΩοΫԻͳͲ)ͷେ͖͞ʹ࿈ಈͯ͠ಈతʹԻྔΛมԽͤ͞Δํ๏
UNITY ্ͰͷԻྔԋग़ Իྔʹؔ͢Δԋग़ྫ • ϑΟϧλʹΑΔ੍ޚ • ScriptʹΑΔ੍ޚ
UNITY ্ͰͷԻྔԋग़ Իྔʹؔ͢Δԋग़ྫ ▸ ScriptʹΑΔ੍ޚ ▸ FadeIn/FadeOut →ίϧʔνϯ ͳΓͰ࣮Մೳ ▸
μοΩϯά ▸ ΠϯτϩBGM࠶ੜ ▸ ΠϯλϥΫςΟϒϛϡʔδοΫ
UNITY ্ͰͷԻྔԋग़ ϑΣʔυ࣮ͷςΫχοΫ ▸ Scriptࣗମඇৗʹ୯७ FadeIn/Out ͦΕͧΕಉ͡ίʔυͰදݱՄೳʢStartͱEndͷઃఆ࣍ୈʣ
UNITY ্ͰͷԻྔԋग़ ϑΣʔυ࣮ͷςΫχοΫ ▸ ΫϩεϑΣʔυͷҙ ▸ ϑΣʔυΧʔϒ͕ઢͩͱશମͷԻྔ͕Լ͕Δॠ͕ؒੜ·ΕΔ ▸ ▸
ղܾखஈͱͯ͠ɺϑΣʔυΧʔϒͱͯ͠ࡾ֯ؔΛ༻͍Δ
UNITY ্ͰͷԻྔԋग़ ϑΣʔυ࣮ͷςΫχοΫ ▸ ͬ͘͟Γͱͨ͠આ໌ ▸ ͷΤωϧΪʔઈରͷ2 ▸ A(t), B(t)
ʹ t, 1-t Λೖ ▸ ৴߸S1 (t), S2 (t) ͷΤωϧΪʔΛҰఆͱԾఆ ▸ 2ͨ͠ͱ͖ʹҰఆˠsin2+cos2 ▸ ࡾ֯ؔͰϑΣʔυΧʔϒΛදݱͯ͋͛͠Ε͍͍ ▸ ৄࡉɿhttps://speakerdeck.com/cova8bitdots/unitydeintarakuteibumiyuzitukuyatutemita
UNITY ্ͰͷԻྔԋग़ Իྔʹؔ͢Δԋग़ྫ ▸ ScriptʹΑΔ੍ޚ ▸ FadeIn/FadeOut →ίϧʔνϯ ͳΓͰ࣮Մೳ ▸
μοΩϯά ԻݯBΛ࠶ੜ͢ΔલʹԻݯAΛFadeͰԻྔམͱ͢ˠԻݯB࠶ੜޙʹԻݯAΛFadeͰݩͷԻྔ ▸ ΠϯτϩBGM࠶ੜ ΠϯτϩͷԻݯͷऴΘΓ͔͚ͱϧʔϓ෦ΛΫϩεϑΣʔυͰಉظͤͯ͞࠶ੜ ▸ ΠϯλϥΫςΟϒϛϡʔδοΫ ▸ ݱࡏͷBGMͷϏʔτʹ߹ΘͤͯΫϩεϑΣʔυΛελʔτͤͯ͋͛͞Δ ▸ ݱࡏͷBGMͷ࠶ੜҐஔΛಉظͯ͠ΫϩεϑΣʔυΛߦ͏
༰ͷ૯෮श ·ͱΊ ▸ Իྔʹ͍ͭͯ ▸ ରΛͱͬͯදݱ[dB] ▸ ײ֮ྔʹΑΓͦ͏ͳΒϥυωε ▸ ԻׂΕ
▸ ԻׂΕ͢ΔͱԻ͕Ή ▸ ഒԻʹΑͬͯԻ৭͕มΘΔ ▸ αϯυԋग़ ▸ FadeΛ੍͢Ε৭ʑग़དྷΔ ▸ μοΩϯά ▸ ΠϯτϩBGM࠶ੜ ▸ ΠϯλϥΫςΟϒϛϡʔδοΫ
͓ΘΓʹ એ ▸ ϛυϧΣΞʹཔΒͳ͍ͰؤுΔαϯυΤϯδϯӶҙ࡞த ▸ https://github.com/UnityLibrary/UniSound ▸ ػೳ ▸ Πϯτϩ͖BGM࠶ੜ
▸ FadeIn/FadeOut/ CrossFade ▸ ΠϕϯτͷϏʔτಉظ ▸ Մมςϯϙใઃఆ ▸ ಉ࣌ൃԻ੍ޚ ▸ ൃԻ੍ ▸ ൃԻͷΠϯλʔόϧ੍ ▸ ઌண/ޙண༏ઌઃఆ ▸ etc.