Radiotalkの収録とライブ配信を支える技術

by Yosei

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Radiotalkͷ ऩ࿥ͱϥΠϒ഑৴Λࢧ͑Δٕज़ iOSΤϯδχΞ 4ࣾ߹ಉLTձɹ2021/7/29ɹΑ͏͍ͤ

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ࣗݾ঺հ Α͏͍ͤ @fairy_engineer   Radiotalkגࣜձࣾ   iOSΤϯδχΞ(5೥໨)   ࡞੒ܦݧ͋ΔαʔϏε   ϒϩάɺԻ੠ɺ༧໿αʔϏεͳͲ

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Radiotalk ɾखܰʹ഑৴Ͱ͖ΔԻ੠αʔϏε ɾ഑৴ํ๏͸ऩ࿥഑৴ͱϥΠϒ഑৴ ɾPodcast΍Spotify΋ࣗಈ࿈ܞ

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ऩ࿥഑৴ͱϥΠϒ഑৴Ͱ ༻͍͍ͯΔٕज़Λ঺հ

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ऩ࿥ͱϥΠϒ഑৴Λࢧ͑Δٕज़ • ऩ࿥഑৴ͱϥΠϒ഑৴ • ऩ࿥഑৴࣮૷ • ϥΠϒ഑৴࣮૷ • ·ͱΊ

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ऩ࿥ͱϥΠϒ഑৴Λࢧ͑Δٕज़ • ऩ࿥഑৴ͱϥΠϒ഑৴ɹ👈 • ऩ࿥഑৴࣮૷ • ϥΠϒ഑৴࣮૷ • ·ͱΊ

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ऩ࿥഑৴ ɾAVAudioRecorderΛ࢖༻ ɾ࠷େ12෼·ͰԻ੠Λऩ࿥ ɾҰ࣌ఀࢭ΋Մೳ

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ऩ࿥഑৴(ήετ͋Γ) ɾagoraΛ࢖༻ ɾ࠷େ5໊·ͰήετΛট଴Ͱ͖Δ ɾ࠷େ12෼·ͰԻ੠Λऩ࿥ ɾURLΛڞ༗͢Δ͜ͱͰট଴Ͱ͖Δ

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ऩ࿥഑৴(ήετ͋Γ)

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ϥΠϒ഑৴ ɾAVAudioEngineΛ࢖༻   ɾ30෼·ͰແྉͰϥΠϒ഑৴Ͱ͖Δ   ɾΪϑτ΍ίϝϯτΛड͚औΕΔ ɾ഑৴தʹޮՌԻΛ࠶ੜͰ͖Δ

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ϥΠϒ഑৴

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ϥΠϒ഑৴(ήετ͋Γ) ɾagoraΛ࢖༻ ɾ࠷େ9໊·ͰήετΛট଴Ͱ͖Δ ɾট଴Ϧετ΍Ϣʔβʔৄࡉ͔Βট ଴Ͱ͖Δ

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ϥΠϒ഑৴(ήετ͋Γ)

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ऩ࿥഑৴ͱϥΠϒ഑৴Λࢧ͑Δٕज़ ௨ৗͷऩ࿥഑৴ͱϥΠϒ഑৴ ʹ͍ͭͯղઆ͠·͢ɻ

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ऩ࿥ͱϥΠϒ഑৴Λࢧ͑Δٕज़ • ऩ࿥഑৴ͱϥΠϒ഑৴ • ऩ࿥഑৴࣮૷ɹ👈 • ϥΠϒ഑৴࣮૷ • ·ͱΊ

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AVAudioRecorder֓ཁ ϑΝΠϧʹԻ੠Λऩ࿥͢ΔΦϒδΣΫτ (AVAudioFoundationʹؚ·ΕΔ)

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ऩ࿥഑৴࣮૷ ᶃRecorderΛ࡞੒ ᶄRecorderͷૢ࡞ɺऩ࿥࣌ؒͷऔಘ

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ऩ࿥഑৴࣮૷ ᶃRecorderΛ࡞੒ ✅ ᶄRecorderͷૢ࡞ɺऩ࿥࣌ؒͷऔಘ

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ऩ࿥഑৴࣮૷ᶃ

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ऩ࿥഑৴࣮૷ ᶃRecorderΛ࡞੒ ✅ ᶄRecorderͷૢ࡞ɺऩ࿥࣌ؒͷऔಘ ✅

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ऩ࿥഑৴࣮૷ᶄ

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ऩ࿥ͱϥΠϒ഑৴Λࢧ͑Δٕज़ • ऩ࿥഑৴ͱϥΠϒ഑৴ • ऩ࿥഑৴࣮૷ • ϥΠϒ഑৴࣮૷ɹ👈 • ·ͱΊ

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AVAudioEngine֓ཁ ೖग़ྗϊʔυʹෳ਺ͷϊʔυΛ૊Έ߹ΘͤΔ͜ͱͰ ऩ࿥΍࠶ੜͳͲͷػೳΛఏڙͰ͖Δ (AVAudioFoundationʹؚ·ΕΔ)

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AVAudioEngine֓ཁ

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ϥΠϒ഑৴࣮૷ ɾAVAudioEngineͷϊʔυߏ੒ ɾAVAudioEngineͷ࣮૷

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ϥΠϒ഑৴࣮૷ ɾAVAudioEngineͷϊʔυߏ੒ ✅ ɾAVAudioEngineͷ࣮૷

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AVAudioEngineͷϊʔυߏ੒

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AVAudioEngineͷϊʔυߏ੒

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AVAudioEngineͷϊʔυߏ੒

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ϥΠϒ഑৴࣮૷ ɾAVAudioEngineͷϊʔυߏ੒ ✅ ɾAVAudioEngineͷ࣮૷ ✅

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AVAudioEngineͷ࣮૷ ᶃΤϯδϯͱϊʔυͷ֤ఆٛ ᶄΤϯδϯʹϊʔυΛऔΓ෇͚֤ϊʔυͷ઀ଓ ᶅԻ੠όοϑΝΛऔಘ͠ϥΠϒ഑৴ॲཧ ᶆΤϯδϯελʔτ

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AVAudioEngineͷ࣮૷ ᶃΤϯδϯͱϊʔυͷ֤ఆٛ ✅ ᶄΤϯδϯʹϊʔυΛऔΓ෇͚֤ϊʔυͷ઀ଓ ᶅԻ੠όοϑΝΛऔಘ͠ϥΠϒ഑৴ॲཧ ᶆΤϯδϯελʔτ

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ᶃΤϯδϯͱϊʔυͷ֤ఆٛ

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ᶃΤϯδϯͱϊʔυͷ֤ఆٛ

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ᶃΤϯδϯͱϊʔυͷ֤ఆٛ

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AVAudioEngineͷ࣮૷ ᶃΤϯδϯͱϊʔυͷ֤ఆٛ ✅ ᶄΤϯδϯʹϊʔυΛऔΓ෇͚֤ϊʔυͷ઀ଓ ✅ ᶅԻ੠όοϑΝΛऔಘ͠ϥΠϒ഑৴ॲཧ ᶆΤϯδϯελʔτ

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ᶄΤϯδϯʹϊʔυΛऔΓ෇͚֤ϊʔυͷ઀ଓ

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ᶄΤϯδϯʹϊʔυΛऔΓ෇͚֤ϊʔυͷ઀ଓ

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AVAudioEngineͷ࣮૷ ᶃΤϯδϯͱϊʔυͷ֤ఆٛ ✅ ᶄΤϯδϯʹϊʔυΛऔΓ෇͚֤ϊʔυͷ઀ଓ ✅ ᶅԻ੠όοϑΝΛऔಘ͠ϥΠϒ഑৴ॲཧ ✅ ᶆΤϯδϯελʔτ

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ᶅԻ੠όοϑΝΛऔಘ͠ϥΠϒ഑৴ॲཧ

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AVAudioEngineͷ࣮૷ ᶃΤϯδϯͱϊʔυͷ֤ఆٛ ✅ ᶄΤϯδϯʹϊʔυΛऔΓ෇͚֤ϊʔυͷ઀ଓ ✅ ᶅԻ੠όοϑΝΛऔಘ͠ϥΠϒ഑৴ॲཧ ✅ ᶆΤϯδϯελʔτ ✅

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ޮՌԻͷ࠶ੜ

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Τϯδϯετοϓ

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ऩ࿥ͱϥΠϒ഑৴Λࢧ͑Δٕज़ • ऩ࿥഑৴ͱϥΠϒ഑৴ • ऩ࿥഑৴࣮૷ • ϥΠϒ഑৴࣮૷ • ·ͱΊɹ👈