Feat/music mic#305
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…s (PR2) Cœur DSP du micro (pur, testable) : onsets → BPM + phase + confiance via la longueur résultante des onsets projetés sur chaque période candidate. Plage BPM bornée pour limiter le repli d'octave. 6 tests (train propre, jitter, aléatoire, fenêtre glissante).
…aptatif (PR2) PCM mono → timestamps d'onsets (énergie par trame, flux demi-rectifié, seuil adaptatif EMA, période réfractaire). Streaming (trames incomplètes gardées). 4 tests sur click-tracks synthétiques (placement, silence, streaming, régularité).
…estable (PR2) BeatClock micro, cœur pur pilote par le PCM (horloge échantillons) : intro (écoute jusqu'au verrou confiant) → lecture (émet les battements, re-cale la dérive) ; gate(windowMs) pour ignorer nos bips. La capture micro réelle (record) sera une fine couche appelant feedPcm. 4 tests sur click-track (verrou, silence, gate, changement de tempo). Aucun changement de pubspec.
…issions (PR2) Câblage plateforme du mode micro (hors ligne, capture locale) : - record ^5.2.1 (PCM16 stream, echoCancel + noiseSuppress). - MicCapture : record stream → samples mono −1..1 → MicTempoSource.feedPcm. decodePcm16 pur + testé. - MusicSessionController : flag useMic ; en micro lance la capture (permission), expose isCalibrating, gate(70ms) autour de chaque bip. - Écran : SegmentedButton tap/micro, état d'intro « écoute… », SnackBar si permission refusée. i18n fr/en/de/es. - Permission RECORD_AUDIO (Android manifest) + NSMicrophoneUsageDescription (iOS). 699 tests verts, analyze propre. À tester sur appareil réel avec de la musique.
…cord 5.x) record 5.2.1 contraignait record_linux <1.0.0 (0.7.2, sans startStream) tout en tirant platform_interface 1.6.0 → erreur de compilation (RecordLinux missing startStream) même pour un build Android. record 6.2.1 résout record_linux 1.3.1 (cohérent). API MicCapture inchangée. Build APK debug OK.
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