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
76
HandGestureTool for AppleVisionPro
cova8bitdots
0
110
NinjaGazeTyping 制作秘話
cova8bitdots
0
330
UnityとGoogleCloudFunction を連携して社内サービスを作った話
cova8bitdots
0
190
Unity-chan.Terrastal!!
cova8bitdots
0
430
ExampleOfTilemap2D
cova8bitdots
0
140
unity_lt_2021_Dec.pdf
cova8bitdots
0
860
HowToUseAudioMixer
cova8bitdots
0
150
TrapOfSpriteAtlas
cova8bitdots
0
5.2k
Other Decks in Programming
See All in Programming
Reduxモダナイズ 〜コードのモダン化を通して、将来のライブラリ移行に備える〜
pvcresin
2
690
Back to the Future: Let me tell you about the ACP protocol
terhechte
0
130
dynamic!
moro
9
6.6k
Conquering Massive Traffic Spikes in Ruby Applications with Pitchfork
riseshia
0
150
いま中途半端なSwift 6対応をするより、Default ActorやApproachable Concurrencyを有効にしてからでいいんじゃない?
yimajo
2
340
Go Conference 2025: Goで体感するMultipath TCP ― Go 1.24 時代の MPTCP Listener を理解する
takehaya
7
1.6k
高度なUI/UXこそHotwireで作ろう Kaigi on Rails 2025
naofumi
4
3.5k
なぜGoのジェネリクスはこの形なのか? Featherweight Goが明かす設計の核心
ryotaros
7
1k
プロダクト開発をAI 1stに変革する〜SaaS is dead時代で生き残るために〜 / AI 1st Product Development
kobakei
0
490
CSC509 Lecture 06
javiergs
PRO
0
240
私達はmodernize packageに夢を見るか feat. go/analysis, go/ast / Go Conference 2025
kaorumuta
2
490
ソフトウェア設計の実践的な考え方
masuda220
PRO
3
490
Featured
See All Featured
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.5k
Automating Front-end Workflow
addyosmani
1371
200k
How to Ace a Technical Interview
jacobian
280
24k
Context Engineering - Making Every Token Count
addyosmani
5
180
Agile that works and the tools we love
rasmusluckow
331
21k
The Cult of Friendly URLs
andyhume
79
6.6k
Git: the NoSQL Database
bkeepers
PRO
431
66k
Designing Experiences People Love
moore
142
24k
Scaling GitHub
holman
463
140k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
26
3.1k
The Illustrated Children's Guide to Kubernetes
chrisshort
48
51k
GitHub's CSS Performance
jonrohan
1032
460k
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.