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feat: finer spectrum, estimated karaoke, clips in the mini-player, artists to split - #724

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Sep 21, 2026
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@InstaZDLL InstaZDLL commented Sep 21, 2026 •

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Four display changes, grouped because none of them touches the others' code and all four need to be looked at on screen.

#715 — the spectrum

  • Bass resolution. FFT_SIZE 2048 → 4096 (a 10.8 Hz bin at 44.1 kHz), with a fixed hop of 1024 so the update rate does not halve. A band still narrower than a bin reads the spectrum at its centre frequency, interpolated between the two nearest bins, so adjacent bass bands no longer report the same bin. Wide bands now include every bin whose centre falls inside them.
  • Level. The fixed norm_peak = 250 is replaced by a running reference that follows the loudest band — up in ~250 ms, down over ~3 s, floored so silence is never amplified into noise — with 15% headroom. Reset on track change.
  • No smoothing added: the React side keeps its own attack / release. The goal is the right movement, not more of it — this needs judging with music playing.

#719 — artists to split, in Needs attention

  • A new artist-shaped category, phantom_artist, listed by inventory_phantom_artists: each comma-joined artist with the names the split would produce and the split inline (second click confirms). It uses the split's own split_fragments, so it never offers what the split would not do.
  • Every comma name is listed, not only those whose fragments already exist. The issue proposed the stronger signal; measured on a real library (read-only), 18 of 39 comma names had no fragment in the library and every one was a genuine duo. Known fragments are marked and sort a name up.
  • "Don't split" dismisses a real name (Tyler, The Creator) for good, per profile, in profile_setting['inventory.dismissed_phantoms'] by canonical name.

#717 — Canvas and motion cover in the mini-player

  • Same chain as the other surfaces: Canvas > motion cover > slideshow > still cover, same gates. The clip is cropped into the square slot.
  • useCanvasEnabled now listens for storage events: the toggle lives in localStorage, shared by both webviews, but each kept its own in-memory copy, so a toggle in the main window never reached an open mini-player.

#716 — estimated word-by-word karaoke, opt-in

  • profile_setting['lyrics.estimate_words'], default off, Settings → Lyrics.
  • Only the active line gets words, re-derived each time and never stored; lines with real word timing are untouched.
  • Weighted by syllables (vowel groups; Hangul blocks; Han/kana characters), a pause after punctuation, the sung span capped at 550 ms a syllable so a line before an instrumental break is not stretched across it. Chinese and Japanese step by phrase: every view puts a space between words, so a per-character split would write spaces into the line.

Checks

  • cargo clippy --workspace --all-targets -D warnings, cargo fmt --check, bun run typecheck, bun run lint: clean.
  • New Rust tests (bass bands distinct, quiet master reaches the top, silence not amplified, a single beat does not reset the scale; comma names listed / dismissed / unsplittable against the real migrations) — app crate, Linux CI only.
  • 17 locales; playback.md, library.md, ui.md, integrations.md updated.

Worth checking on screen

  • The spectrum on a bass-heavy track and on a quiet master.
  • Needs attention → Artists to split: split one, dismiss one.
  • The mini-player on a track with a Canvas, and one with a motion cover; toggle Show Canvas in the main window with the mini open.
  • Settings → Lyrics → estimated karaoke on a line-synced track.

Closes #715
Closes #716
Closes #717
Closes #719

Summary by CodeRabbit

  • Nouvelles fonctionnalités

    • Ajout d’une option de karaoké mot à mot estimé pour les paroles synchronisées par ligne, sans modifier les données enregistrées.
    • L’inventaire détecte les artistes dont le nom semble regrouper plusieurs artistes et permet de les scinder ou de les ignorer.
    • Le mini-lecteur prend en charge Canvas et les pochettes animées, avec une priorité d’affichage cohérente.
  • Améliorations

    • Visualiseur audio plus précis, notamment dans les basses fréquences et avec les morceaux à faible volume.

@InstaZDLL InstaZDLL added scope: frontend React/Vite frontend (src/) scope: backend Rust/Tauri backend (src-tauri/) scope: i18n Translations (src/i18n/) scope: docs Docs, README, assets type: feat New feature size: xl > 500 lines labels Sep 21, 2026
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📝 Walkthrough

Walkthrough

Cette modification ajoute quatre évolutions : l’estimation optionnelle du karaoké mot à mot, une analyse spectrale adaptative, les contenus animés du mini-player et une catégorie d’artistes à scinder dans l’inventaire.

Changes

Analyse du spectre

Layer / File(s) Summary
Analyse et normalisation adaptatives
src-tauri/crates/app/src/audio/spectrum.rs, docs/features/playback.md
La FFT passe à 4096 échantillons avec un déplacement de 1024 échantillons. Les bandes basses utilisent une interpolation. Le niveau de référence devient adaptatif. Les tests couvrent les faibles niveaux, le silence et les pics isolés.

Estimation du karaoké

Layer / File(s) Summary
Estimation et intégration des timings
src/lib/lyricsWordEstimate.ts, src/hooks/useEstimatedKaraoke.ts, src/hooks/useTrackLyrics.ts, docs/features/integrations.md
Le réglage active l’estimation uniquement pour la ligne active sans timing de mots. Les timings sont recalculés à l’affichage et ne sont pas persistés.
Réglage et affichage
src/components/views/settings/EstimatedKaraokeCard.tsx, src/components/views/SettingsView.tsx, src/components/views/settings/settingsCatalog.ts, src/i18n/locales/*
Une carte de réglage et ses traductions sont ajoutées. Le réglage est désactivé par défaut.

Médias du mini-player

Layer / File(s) Summary
Priorité des contenus animés
src/components/views/MiniPlayer.tsx, src/components/player/MotionCoverOverlay.tsx, docs/features/ui.md
Le mini-player applique la priorité Canvas, pochette animée, diaporama, puis pochette fixe. Le mode de réduction des mouvements reste pris en compte.
Synchronisation de Canvas
src/hooks/useCanvasEnabled.ts
Les changements de la préférence Canvas sont synchronisés entre fenêtres par l’événement storage.

Artistes à scinder

Layer / File(s) Summary
Détection et commande d’inventaire
src-tauri/crates/app/src/commands/artist_split.rs, src-tauri/crates/app/src/commands/inventory.rs, src-tauri/crates/app/src/lib.rs, src/lib/tauri/artistOverrides.ts, src/lib/tauri/inventory.ts, docs/features/library.md
L’inventaire expose les artistes contenant plusieurs fragments distincts. Les fragments connus sont associés. Les exclusions persistées et les cas non séparables sont filtrés. Les opérations utilisent le profil attendu lorsqu’il est fourni.
Affichage et actions d’inventaire
src/components/views/library/InventoryCategories.tsx, src/components/views/LibraryView.tsx, src/components/views/library/PhantomArtistList.tsx
Une catégorie comptée par artiste affiche les fragments, le nombre de pistes et les actions d’exclusion ou de scission.
Libellés des artistes à scinder
src/i18n/locales/*
Les traductions ajoutent la catégorie, les compteurs d’artistes et les actions associées.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~60 minutes

Change: Feature · Severity of issue fixed: Medium

Sequence Diagram(s)

sequenceDiagram
  participant User
  participant SettingsView
  participant useTrackLyrics
  participant estimateLineWords
  User->>SettingsView: active l’estimation des paroles
  SettingsView->>useTrackLyrics: transmet le réglage activé
  useTrackLyrics->>estimateLineWords: estime la ligne active
  estimateLineWords-->>useTrackLyrics: retourne les timings temporaires
Loading
sequenceDiagram
  participant User
  participant PhantomArtistList
  participant inventoryPhantomArtists
  participant TauriInventory
  User->>PhantomArtistList: ouvre la catégorie phantom_artist
  PhantomArtistList->>inventoryPhantomArtists: charge les artistes détectés
  inventoryPhantomArtists->>TauriInventory: invoque inventory_phantom_artists
  TauriInventory-->>PhantomArtistList: retourne les fragments connus
  User->>PhantomArtistList: confirme la scission
  PhantomArtistList->>TauriInventory: appelle splitArtist
Loading

Merge Risk: 🔵 Low · up to 27274

Estimated karaoke timing is slightly too compressed after ASCII trailing dashes. Add the ASCII hyphen to the short-pause matcher before merging.

🚥 Pre-merge checks | ✅ 6 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 74.42% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 43 functions across 18 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (6 passed)
Check name Status Explanation
Description check ✅ Passed La description couvre les quatre changements, les tests exécutés, les points à vérifier et les issues liées. Les sections standard « Summary », « How I tested », « Checklist » et « Screenshots / clips…
Linked Issues check ✅ Passed La description référence et clôt les issues #715, #716, #717 et #719. Ces issues correspondent directement aux quatre objectifs du pull request.
Out of Scope Changes check ✅ Passed Les fichiers modifiés correspondent aux quatre objectifs annoncés, ainsi qu’aux traductions et à la documentation nécessaires. Aucun changement hors périmètre évident n’est indiqué.
Title check ✅ Passed Le titre décrit clairement les quatre changements principaux : spectre, karaoké estimé, mini-player et artistes à scinder. Il reste concis et directement lié au contenu du pull request.
Linked Issues check ✅ Passed Les exigences de codage des issues #715, #716, #717 et #719 sont couvertes par les changements du PR. #715 conserve l’analyse côté décodeur et le lissage React. La FFT passe à 4096 points, les bandes …
Out of Scope Changes check ✅ Passed Les changements restent liés aux objectifs #715, #716, #717 et #719. Les composants, commandes, réglages, tests, traductions et documents ajoutés prennent en charge ces fonctionnalités. Aucun changeme…
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Actionable comments posted: 2

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Some comments are outside the diff and can’t be posted inline due to GitHub limitations.

⚠️ Outside diff range comments (1)

🟡 Minor · Réinitialiser level lors de la désactivation. · spectrum.rs:148

src-tauri/crates/app/src/audio/spectrum.rs:148
🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Réinitialiser level lors de la désactivation.

Quand le visualiseur est désactivé, feed vide seulement pending puis retourne. Lors d’une réactivation pendant le même play_track, spectrum_analyzer réutilise donc l’ancienne référence élevée. Les trames calmes la font ensuite décroître avec LEVEL_RELEASE, ce qui atténue le spectre pendant plusieurs secondes.

             if !self.pending.is_empty() {
                 self.pending.clear();
             }
+            self.level = MIN_LEVEL;
             return;
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In `@src-tauri/crates/app/src/audio/spectrum.rs` at line 148, Update the disabled
path in feed to reset self.level to MIN_LEVEL before returning, alongside
clearing self.pending, so reactivation starts without stale peak state.

  • 🪄 Fix CodeRabbit comments on this PR
🤖 Prompt to fix review comments
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only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
In `@src/components/views/library/PhantomArtistList.tsx`:
- Around line 74-75: Update the loading flow around inventoryPhantomArtists in
PhantomArtistList so each displayed rows collection is associated with the
profile that loaded it. Clear or hide rows immediately when the active profile
changes, and guard the splitArtist and dismiss handlers so they do nothing when
the loaded profile ID differs from the active profile ID.

In `@src/components/views/MiniPlayer.tsx`:
- Around line 625-631: Update the MotionCoverOverlay render condition in
MiniPlayer to also require reducedMotion to be false, while preserving the
existing canvasActive condition and overlay props.

---

Outside diff comments:
In `@src-tauri/crates/app/src/audio/spectrum.rs`:
- Line 148: Update the disabled path in feed to reset self.level to MIN_LEVEL
before returning, alongside clearing self.pending, so reactivation starts
without stale peak state.

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📒 Files selected for processing (37)
  • docs/features/integrations.md
  • docs/features/library.md
  • docs/features/playback.md
  • docs/features/ui.md
  • src-tauri/crates/app/src/audio/spectrum.rs
  • src-tauri/crates/app/src/commands/artist_split.rs
  • src-tauri/crates/app/src/commands/inventory.rs
  • src-tauri/crates/app/src/lib.rs
  • src/components/views/LibraryView.tsx
  • src/components/views/MiniPlayer.tsx
  • src/components/views/SettingsView.tsx
  • src/components/views/library/InventoryCategories.tsx
  • src/components/views/library/PhantomArtistList.tsx
  • src/components/views/settings/EstimatedKaraokeCard.tsx
  • src/components/views/settings/settingsCatalog.ts
  • src/hooks/useCanvasEnabled.ts
  • src/hooks/useEstimatedKaraoke.ts
  • src/hooks/useTrackLyrics.ts
  • src/i18n/locales/ar.json
  • src/i18n/locales/de.json
  • src/i18n/locales/en.json
  • src/i18n/locales/es.json
  • src/i18n/locales/fr.json
  • src/i18n/locales/hi.json
  • src/i18n/locales/id.json
  • src/i18n/locales/it.json
  • src/i18n/locales/ja.json
  • src/i18n/locales/ko.json
  • src/i18n/locales/nl.json
  • src/i18n/locales/pt-BR.json
  • src/i18n/locales/pt.json
  • src/i18n/locales/ru.json
  • src/i18n/locales/tr.json
  • src/i18n/locales/zh-CN.json
  • src/i18n/locales/zh-TW.json
  • src/lib/lyricsWordEstimate.ts
  • src/lib/tauri/inventory.ts

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Comment thread src/components/views/library/PhantomArtistList.tsx Outdated
Comment thread src/components/views/MiniPlayer.tsx
…ed spectrum starts level

Also keeps the artists-to-split rows tied to the profile they were read from.
… the next

And an estimated line hands over at the earlier of its two known ends.
@InstaZDLL

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@coderabbitai Outside-diff note on spectrum.rs:148 fixed: the disabled path resets the level reference to MIN_LEVEL along with clearing pending, so a re-enabled visualizer starts from the floor.

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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@src/components/views/library/PhantomArtistList.tsx`:
- Line 130: Dans l’action de séparation de PhantomArtistList, capturez le
profileId avant l’appel asynchrone à splitArtist, puis utilisez-le pour
l’action. Après son achèvement, mettez à jour loaded uniquement si
prev.profileId correspond toujours au profil capturé; sinon, retournez prev sans
filtrer les lignes du profil actif.

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📒 Files selected for processing (12)
  • src-tauri/crates/app/src/audio/spectrum.rs
  • src-tauri/crates/app/src/commands/artist_split.rs
  • src-tauri/crates/app/src/commands/inventory.rs
  • src/components/player/MotionCoverOverlay.tsx
  • src/components/views/library/PhantomArtistList.tsx
  • src/i18n/locales/pt-BR.json
  • src/i18n/locales/pt.json
  • src/i18n/locales/zh-CN.json
  • src/i18n/locales/zh-TW.json
  • src/lib/lyricsWordEstimate.ts
  • src/lib/tauri/artistOverrides.ts
  • src/lib/tauri/inventory.ts

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Comment thread src/components/views/library/PhantomArtistList.tsx Outdated
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@InstaZDLL Bien reçu. La réinitialisation de la référence de niveau à MIN_LEVEL dans le chemin désactivé évite de réutiliser un niveau précédent lors de la réactivation du visualiseur.

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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@src/lib/lyricsWordEstimate.ts`:
- Line 69: Update the pauseAfter punctuation check in lyricsWordEstimate to
include the ASCII hyphen-minus alongside the existing dash and punctuation
characters, so units ending in “-” return PAUSE_SHORT.

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Comment thread src/lib/lyricsWordEstimate.ts
@InstaZDLL InstaZDLL self-assigned this Sep 21, 2026
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InstaZDLL merged commit 7c47521 into main Sep 21, 2026
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InstaZDLL deleted the feat/display-batch branch September 21, 2026 13:12
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