# Changelog

All notable changes to **TTS Voice Creator — Clone and Design** are documented here.  
Follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) · versioned with [Semantic Versioning](https://semver.org/).

---

## [Unreleased]

### Fixed
- **Chunked TTS — "Failed to fetch" on long text**: `splitTextIntoChunks` only split on sentence terminators (`.!?`), so newline-delimited text (e.g. German bullet lists or care-plan notes) was never split — the full page was sent as one request, causing a TCP timeout that the browser surfaced as "Failed to fetch". Fixed by processing each line individually before applying the sentence regex. Also moved `generation.js` from deferred batch E into the main feature batch so `generateChunkedTts` is always defined before the user can click Generate.

---

## [1.6.0] — 2026-06-03

### Added
- **Script Rehearser — Cast overhaul**: Card / List **view toggle**; **sort & filter** (name, gender, language, line count, tag); character-card-game styling (large portrait, name, description line, action row); **per-character online voice picker** (audition the match, browse alternatives, pick from your library, or search fish.audio inline); **"Hear a line"** button that synthesizes a representative one-liner from the character's own dialogue in their assigned voice.
- **AI character notes** — Match local / Match online / Design all now research the play and drop a per-character note (description, gender, speaking style).
- **Rehearser import auto-save** — uploading a script (PDF/text/FDX/Fountain) saves it to the Library immediately.
- **Internationalization (i18n)** — interface **language picker** with **German** translation of the UI chrome; English is the source language (`static/js/i18n.js`, extend via `I18N_DICT`).
- **Progressive Web App** — installable with offline app shell (`manifest.webmanifest` + network-first service worker), iOS web-app meta and safe-area support.
- **Test suite** — Playwright smoke + functional tests (desktop **and** iPhone/WebKit profiles): app load, sections, clone tabs, PWA, rehearser parse→cast, bundle, i18n.
- **Build tooling** — opt-in single minified bundle (`npm run minify` → `static/dist/main.min.js`, loaded when `?bundle=1`); architecture & migration notes in `docs/ARCHITECTURE.md`.

### Changed
- **Accessibility → WCAG 2.1 AA** — accessible names on all controls, AA text/badge/button contrast, keyboard-focusable scroll regions (audited with axe-core; 40+ violations → a handful of edge cases).
- **Performance / mobile stability** — GZip responses; `content-visibility` virtualization for long lists; lazy-loaded images; Rehearser caps decoded-PCM memory to a sliding window (fixes iPhone crashes); leaked `AudioContext` closed; bounded-concurrency bulk operations.
- **Clone a Voice — reworked GUI** — integrated tab strip (Microphone · Upload · URL/YouTube), clearer sections, scroll-to + obvious "transcribing…" feedback, sample sentence keeps the typed name across language switches.
- **Fish-Speech tone** — per-line tones now reach OpenAudio S2 via inline `[tag]` markers in the text (the `instruct` field is ignored by S2).
- **fish.audio import** — de-duplicates voices already in the library and diversifies matches so different characters don't all get the same fallback voice.
- **Get Voices Online** — tabbed, integrated source switcher; the scrape box lives only under "Direct sources".
- **Voice library** — editable Voice ID (rename), complete country/accent list (decoupled from language), always-visible **Select all** toggle, redesigned bulk-delete confirmation modal.

### Fixed
- **Screenplay parser** — title-page text, numbered scene headings (`A1 EXT. … EVENINGA1`), `OMITTED`/`CONTINUED` markers and dated page slugs are no longer detected as characters.
- **Narrator & all voice pickers** now list the full voice library (lazy-loaded if needed).
- **Cast list controls** wire reliably regardless of when the section mounts; role names no longer truncate; avatars enlarged.

---

## [1.5.0] — 2026-06-01

### Added
- **Fish-Speech TTS backend** — clones a voice's saved reference WAV (consistent identity) **and** honours inline emotion markers like `(angry)`, `(whispering)`, `(excited)` per line. The only backend that is both WAV-anchored and style-aware; the Rehearser prefers it when available. Configurable via `FISHSPEECH_URL`.
- **Fish.audio Voice Library browser** (Get Voices Online) — search/filter the ~2M public voices at `api.fish.audio`, preview samples, and one-click **Import** (MP3 → WAV + reference transcript) → an instantly clonable voice.
- **Cast tab redesigned as character cards** — big avatar, name, language, gender, tags, voice picker, voice-design prompt, "Character soul · LLM brief" with **Develop** (LLM), and per-character **Ignore / Hide / Delete**.
- **Bulk-edit lines on the Stage** — a **Select** mode adds per-line checkboxes: **Ignore**, **Hide**, **Delete**, Un-ignore, Show-hidden.
- **Designed voices** — display name is the **character name**, the script becomes a **tag**, and an auto-picked **gender/type avatar icon** replaces the language flag.
- **Clone a Voice — name-first flow** — name first (drops into the read-aloud sentence), live voice-ID, **auto-transcribe** after trim, **auto-save when ready**, and a **File / URL / Microphone source picker**.

### Changed
- **IMSDb scraper** — resolves the real script via each title's detail-page "Read Script" link instead of guessing a slug.
- **Rehearser default backend** — `voice_clone` (then `fishspeech`) for consistent identity; the tone-warning explains the trade-off both ways.
- **Try It Out** — the cramped voice/backend row is now a clean responsive layout.

### Fixed
- **Narrator was silent** — `narratorVoice` now stays in sync with the narrator cast row.
- **About → Changelog was empty** — `CHANGELOG.md` is now shipped in the image and resolved resiliently.

---

## [1.4.0] — 2026-06-01

### Added
- **IMSDb browser — list / cover view toggle** — switch between poster-grid and compact list view; preference persisted in `localStorage`.
- **IMSDb browser — local catalogue cache** — catalogue is cached in `localStorage` for 6 h (matching server cache), making reopening the browser instant.
- **IMSDb browser — title in fallback** — script title shown on each gradient poster card while the real poster loads.
- **IMSDb browser — loading spinner** — animated spinner while the catalogue fetches.
- **IMSDb browse button on Import / Export tab** — the "Browse IMSDb" button is now also available on the Import / Export panel; modal moved to global scope.
- **Auto-design — detailed progress panel** — each character shows an expandable card during voice design: gender chip, language, voice ID, age, and the full LLM-generated character description with a live spinner.
- **Auto-design — script title as voice tag** — designed voices receive the script title as their `tag` value so they're easy to filter/find.
- **Auto-design — LLM endpoint datalist** — the LLM endpoint field is now backed by a `<datalist>` auto-populated from all configured Language Models engines, plus hardcoded defaults (Ollama, vLLM, LM Studio, llama-swap, LiteLLM).
- **Stage — synthesis progress** — the synth bar is now more prominent (gradient fill, spinner, sticky), each synthesising line pulses with a blue glow, and the page auto-scrolls to the active line.
- **Stage — tone warning banner** — when a non-style-aware backend (voice_clone, streaming, NVIDIA) is selected and tone is set on lines, a dismissable amber warning banner names the backend and suggests a style-aware alternative.
- **Bulk-edit tools** — new sticky toolbar in My Voices: select any number of voices with checkboxes, then: **Set tag**, **Hide**, **Unhide**, **Rate**, or **Delete** in one action.
- **Rehearser — Voice Design default** — the TTS backend picker in Cast now defaults to `voice_design` (style-aware) instead of voice_clone, so tone selections work out of the box.

### Changed
- **Stage — edit button moved to right gutter** — the pencil (edit text) button is now stacked with the note button in the right-side gutter of each dialog block, keeping the block header clean.
- **Tone / instruct order** — when an emotion is set on a line, the instruction now leads with a directive (`"Speak in a <emotion> manner. <voice profile>"`) so the model prioritises the tone over the base identity description.
- **My Voices — hidden voices in sub-tabs** — fixed: Cloned, Designed, and Favorites tabs now respect the "Disabled" checkbox filter; hidden voices no longer appear unless explicitly requested.

### Fixed
- **IMSDb covers showing as flat lines** — replaced `aspect-ratio` on a flex child (unreliable in all major browsers) with the `padding-bottom: 150%` wrapper trick, guaranteeing a correct 2:3 poster ratio.
- **Rehearser TTS backend "No backend available"** — `refreshRehBackends` now triggers the global backend probe if `_ttsBackends` is empty, and registers a `_ttsRefreshHook` so the select stays in sync with the Engines page.

---

## [1.3.0] — 2026-05-31

### Added
- **Live mic monitor in Clone a Voice** — level-meter and scrolling oscilloscope waveform in the Microphone card. "Check level" / "Stop monitor" buttons, mic gain slider. Recording uses raw mic constraints (no echo-cancel / AGC).
- **STT engine picker in Clone → Transcript** — pick any configured STT backend when auto-transcribing, bypassing an unavailable Whisper.
- **Better sample texts** — all 8 languages rewritten to ~38 words / ~15 s, phonetically rich, proper Unicode diacritics.

### Fixed
- **Empty "Read aloud" field** — sample text now reliably populates on load and when navigating to the Clone section.
- **Recording quality** — `MediaRecorder` requests 256 kbps in Clone and STT→TTS.
- **OGG file import** — explicit extension list in `accept=`.

---

## [1.2.0] — 2026-05-29

### Added

- **Remember last section on reload** — the active section (and Settings /
  Engines sub-page) is persisted in `localStorage`. A hard-reload
  (Ctrl+Shift+R) now returns to the same page instead of always jumping to
  My Voices.
- **Conversation: live speech preview** — while recording, the active Whisper
  STT backend transcribes accumulated audio every 2.5 s and shows the result
  in the text input field in real time. The input is pre-populated with this
  live guess before the final Whisper result arrives. Also tries the browser's
  Web Speech API first (works on HTTPS / localhost) for even faster results.
- **Conversation: Voice Activity Detection (VAD)** — recording now auto-stops
  after 1.5 s of silence detected via the Web Audio `AnalyserNode` RMS level.
  A "Sending in X.Xs" countdown appears in the status bar so the timing is
  visible. An **Auto-stop** toggle in the input bar lets users disable VAD and
  revert to click-to-stop. A thin audio-level bar below the status line shows
  microphone volume in real time during recording.
- **Conversation: hands-free mode** — after the agent finishes speaking, the
  microphone restarts automatically. A **Hands-free** toggle (on by default)
  disables this; clicking the mic button manually always cancels any pending
  auto-restart.
- **`scripts/release.py`** — automates version bump + CHANGELOG promotion.
  `python scripts/release.py --patch|--minor|--major [--dry-run]` renames
  `[Unreleased]` to the new version, updates compare links, writes `VERSION`,
  commits, and creates an annotated git tag in one command.
- **Git pre-commit hook** (`scripts/hooks/pre-commit`) — warns (does not
  block) when `.py`/`.js`/`.css`/`.html` files are staged but `CHANGELOG.md`
  or `VERSION` are not. Run `bash scripts/install-hooks.sh` after cloning.
- **`scripts/install-hooks.sh`** — one-liner to install the hook after a
  fresh clone: `bash scripts/install-hooks.sh`.

### Changed

- **Config and logs are now bind-mounted local folders** — replaced the
  opaque named Docker volume with `./config/` and `./logs/` host directories.
  `portainer-stack.yml` updated with absolute host paths.
- **Server writes a rotating log file** — `RotatingFileHandler` writes
  `INFO`-level and above to `./logs/app.log` (rotates at 5 MB, 3 backups).

### Performance

- **Skeleton loading view** — `index.html` shows an animated shimmer
  placeholder immediately on first paint; fades out once JS finishes loading.
- **Self-hosted WaveSurfer and MDI icon font** — removed render-blocking CDN
  requests; assets now served locally from `static/vendor/`.
- **Parallel JS module loading** — restructured `loader.js` into 4 ordered
  batches; round-trips reduced from 17 to 6, 9 files fetched simultaneously.
- **Version-based JS/CSS cache busting** — versioned assets served with
  `max-age=31536000, immutable`; bumping version invalidates the cache.

### Fixed

- **LLM returned empty response (Qwen3 thinking mode)** — conversation turn
  now falls back to `reasoning_content` for think-only responses; error
  message hints to add `/no-think` to the system prompt.
- **Engine settings lost after container recreate** — container names and URL
  overrides now persisted as server settings (`engine_container_names`,
  `engine_local_urls`); restored from server on first page load.
- **Text-input turns returned 422** — changed `audio` form field to
  `Optional[UploadFile] = None` so text-only turns don't require audio.
- **Conversation input bar hidden when mic unavailable** — warning box moved
  inside `conv-chat-window` so it never pushes the input bar off-screen.
- **Browser caches old section HTML** — `loader.js` appends `?v=<timestamp>`
  to every section fetch.
- Various import errors and container restart issues fixed.

---

## [1.1.0] — 2026-05-29

### Security

- **Fixed path traversal in `/api/browse-dirs`** — Added a `_BROWSE_BLOCKED` blocklist
  (`/proc`, `/sys`, `/dev`, `/run`, `/boot`). Requests for paths under these directories
  now return HTTP 403 instead of listing kernel/system files.
- **Hardened yt-dlp output path** — After a YouTube download completes, the resolved
  output path is verified to be inside `TEMP_DIR` via `.relative_to()`. A file written
  outside the temp directory is rejected with an SSE error event and never registered.
- **Removed CORS wildcard on `/api/proxy-audio`** — `Access-Control-Allow-Origin: *`
  was unnecessary (all callers are same-origin) and exposed proxied audio to arbitrary
  cross-origin requests. Header removed.
- **Temp file registry now enforces a TTL** — `_registry` changed to
  `dict[str, tuple[Path, float]]`. `_registry_gc()` evicts entries older than
  `TEMP_FILE_TTL_SECONDS` (default 2 h, configurable via env var) and unlinks their
  files, preventing unbounded disk growth on long-running instances.

### Performance

- **Settings and routing rules cached in memory** — `_load_settings()` and
  `_load_tts_routes()` previously read from disk on every API request (55+ calls per
  TTS synthesis). Both now use mtime-checked in-memory caches that invalidate
  automatically on write, eliminating redundant file I/O.

### Added

- **Version number** — `VERSION` file at repo root; read by `core/constants.__version__`
  and surfaced via `GET /api/version`. Displayed as `v1.1.0` in Settings → About.
- **Text input in Conversation Playground** — a pill-shaped text field and send button
  (→) sit left of the mic button. Pressing Enter or → sends text directly through the
  LLM → TTS pipeline, skipping STT entirely. Makes the playground fully usable without
  a microphone (HTTP context, no mic permission, remote access). The backend
  `/api/conversation/turn` now accepts an optional `text` form field; when set, the
  STT step is skipped and the STT latency row shows `—`.
- **Container name field on all engine cards** — every TTS and STT engine card (Docker
  stack cards *and* static "Other Local" cards) now always shows the Docker container
  name input row. Previously absent/not-installed cards hid it; now it is always visible
  so the container can be pre-configured before starting.
- **Connect / Disconnect toggle** — the Connect button now shows "Disconnect" (green,
  `check-network` icon) when already connected and toggles back on click. State
  persists in `localStorage`.
- **Auto-apply on Connect** — a successful connection probe automatically saves the
  URL to Settings and makes the backend available in TTS/STT dropdown menus immediately,
  without requiring a separate "Use as TTS/STT" click.

### Changed

- **Connect button redesigned** — moved out of the URL input row into a dedicated
  `dc-controls-row`. Restyled as a solid blue primary CTA (was a small teal outline
  button). Shows a spinner icon while probing.
- **"Use as TTS / STT" button** — larger padding, bolder teal border, chevron icon,
  tooltip explaining it sets the URL in Settings. Gains `.active` highlight once applied.
- **Unified controls row on every engine card** — consistent left-to-right order:
  `[Connect/Disconnect]` `[Stop | Start | Restart]` `[Use as →]`. Docker action buttons
  hidden until a container name is entered; Use-as button right-aligned.
- **`initStaticDockerManagement`** — rebuilt to use the same `dc-controls-row`
  structure as the dynamic Docker stack cards. The existing `.llm-local-ping` button
  is moved from inside the URL row into the controls row at initialisation time.
- **Backend refactor — `server.py` (5 560 lines → 43 lines)** — all logic extracted
  into single-responsibility modules:

  | Package | Module | Responsibility |
  |---|---|---|
  | `core/` | `constants.py` | Boot-time env defaults, path constants, version, log buffer |
  | | `registry.py` | TTL-based temp file registry |
  | | `validation.py` | URL validation, SSRF guard, path safety |
  | | `docker_client.py` | Raw Unix-socket Docker HTTP client |
  | | `config.py` | Settings load/save/normalize, backend URL resolution |
  | | `routing.py` | TTS route rules load/save/resolve, language detection |
  | | `audio.py` | Audio conversion, normalisation, auto-trim scoring |
  | | `voice.py` | Voice metadata, backup management, benchmark helpers |
  | | `presets.py` | Voice Design preset load/save, virtual voice resolution |
  | | `tts_helpers.py` | TTS request helpers, streaming, per-backend logic |
  | `routes/` | `admin.py` | Index, favicon, browse-dirs, robots, version |
  | | `settings.py` | `/api/settings`, routing rules, logs, design presets |
  | | `library.py` | All voice CRUD, upload, save, normalize, export/import |
  | | `stt.py` | `/api/transcribe*`, `/api/stt-backends` |
  | | `sources.py` | Voice scraping, proxy-audio, yt-dlp download |
  | | `docker.py` | `/api/local-containers/*`, `/api/probe-url` |
  | | `tts.py` | TTS preview, streaming, voice design, `/v1/*`, backends |
  | | `conversation.py` | Refine-text, effects, export/import, speak, MCP, conversation |

  `Dockerfile` updated with `COPY core/ core/` and `COPY routes/ routes/`.
  `docker-compose.yml` updated with `./core:/app/core:ro` and `./routes:/app/routes:ro`.

- **Frontend refactor — `app.js` (8 744 lines → 16 modules)** — split into
  `static/js/` with `loader.js` loading them sequentially in dependency order:

  | Module | Lines | Responsibility |
  |---|---|---|
  | `utils.js` | 364 | Core helpers: `$`, `toast`, `escHtml`, theme, language/flag, picker, tabs |
  | `voice-inspector.js` | 397 | 3-pane voice workbench |
  | `voice-sources.js` | 277 | External voice source scraping UI |
  | `integrations.js` | 211 | Code snippet generation (SillyTavern, Open WebUI, HA, curl, MCP) |
  | `routing.js` | 542 | TTS routing rules editor |
  | `settings.js` | 385 | `loadSettings`, `applyAndSaveSettings`, settings panel |
  | `voice-clone.js` | 774 | WaveSurfer, drop zone, mic recording, trim, voice design |
  | `voice-library.js` | 2654 | Full voice library: list, CRUD, benchmark, normalize |
  | `tts-preview.js` | 528 | TTS preview, `fetchTtsPreviewBlob` |
  | `benchmark.js` | 218 | Performance + batch benchmark |
  | `stt.js` | 287 | STT→TTS playground, `refreshSttBackends` |
  | `init.js` | 49 | App bootstrap |
  | `engines.js` | 625 | ElevenLabs browser, custom engine cards, Docker management |
  | `ai-backends.js` | 520 | AI backend cards, LLM snippets, `initStaticDockerManagement` |
  | `generation.js` | 393 | WAV merge, chunked TTS, history, playlist, audio effects |
  | `conversation.js` | 520 | Conversation playground, LLM refinement, import, About |

### Fixed

- **`chrome://flags/…` URL unreadable in mic-blocked warning** — the global
  `code { background: var(--panel) }` rule caused the URL text to render as
  white-on-light-grey inside the red warning box. Fixed with inline styles
  (`background: rgba(0,0,0,.35); color: #fff`) on the `<code>` element, plus a
  Copy button so users don't need to manually select invisible text.

---

## [1.0.0] — 2026-05-28

Initial feature-complete release.

### Added

- **Voice library** — clone voices from audio samples; design voices from text
  descriptions using instruction-based synthesis; benchmark synthesis speed (RTF);
  normalize loudness; export/import voice packages as ZIP bundles.
- **TTS backends** — Qwen3 TTS (Voice Clone, Voice Design, Custom Voice, Streaming),
  NVIDIA Magpie / Zeroshot / Flow, Kokoro FastAPI, VibeVoice, XTTS v2, ElevenLabs.
- **STT backends** — OpenAI Whisper (port 8010), faster-whisper-server, whisper.cpp,
  Groq Whisper (cloud, free tier), NVIDIA Parakeet ASR. Real transcription probe
  in health check (not just TCP reachability).
- **App Routing** — per-app / per-voice / per-language TTS routing rules with
  automatic language detection and optional before/after sound effects.
- **Conversation Playground** — full STT → LLM → TTS pipeline with real-time SSE
  streaming, latency stats panel (STT / LLM TTFT / LLM total / TTS / Total), turn
  history, system prompt, and insecure-context warning.
- **Engines section** — LLM / STT / TTS sub-pages; Docker container management
  (Start / Stop / Restart via Docker socket); custom engine cards; ElevenLabs voice
  library browser.
- **Performance Benchmark** — single-voice and batch benchmark with RTF tracking,
  sparkline trend, and persistent history.
- **Audio effects** — reverb, chorus, delay, compressor, gain, pitch shift
  (via `pedalboard`).
- **Chunked TTS + generation history** — long-text synthesis split into chunks,
  per-chunk playback, playlist export as WAV.
- **MCP server** — built-in JSON-RPC 2.0 endpoint at `/mcp`; tools: `speak`,
  `transcribe`, `list_captures`, `list_profiles`.
- **LLM refinement & persona rewriting** — clean up STT transcripts or rewrite
  responses with a chosen persona via any OpenAI-compatible LLM endpoint.
- **Connect Apps** — ready-made config snippets for SillyTavern, Open WebUI,
  Home Assistant, curl, and MCP (`claude mcp add` one-liner).
- **Voice sources** — scrape voice assets from Aiartes, Freesound, GitHub, and
  Google Drive; YouTube download via yt-dlp; quick import directly to library.
- **OpenAI-compatible proxy** — `/v1/audio/speech` and `/v1/audio/transcriptions`
  for drop-in use with Open WebUI, SillyTavern, and Home Assistant.
- **Settings** — sub-pages: General, Connections, Playback, Captures, Payloads,
  Storage, API Keys, Logs, About.
- **Voice Design presets** — saved persona templates for instruction-based synthesis;
  virtual `vd_…` voices usable from external apps without exporting WAV files.
- **Multilingual support** — language/flag pickers, per-language preview texts,
  `LANG_FLAG_DEFAULT` mapping for 16 languages.
- **Tags, ratings, and metadata** — per-voice tags with autocomplete, star ratings,
  gender label, country flag.
- **Dark/light theme** — toggle with persistence in `localStorage`.
- **Docker socket integration** — Start/Stop/Restart Docker containers from the UI
  via raw Unix socket HTTP; container health visible in engine cards.

---

[Unreleased]: https://github.com/mARTin-B78/tts-voice-creator-clone-and-design-2/compare/v1.2.0...HEAD
[1.2.0]: https://github.com/mARTin-B78/tts-voice-creator-clone-and-design-2/compare/v1.1.0...v1.2.0
[1.1.0]: https://github.com/mARTin-B78/tts-voice-creator-clone-and-design-2/compare/v1.0.0...v1.1.0
[1.0.0]: https://github.com/mARTin-B78/tts-voice-creator-clone-and-design-2/releases/tag/v1.0.0