tgeczy/TGSpeechBox v-300b7

TG SpeechBox with phoneme editor, NVDA Addon, SAPI5, Linux, Android, iOS, Mac OS, version 3.0 public beta 7

on GitHub

TGSpeechBox v3.0-beta7

Changes since v3.0-beta6. 72 commits.

New Features

• Pronunciation dictionary system: Full dictionary editor on all platforms — iOS, Android, and Windows (phoneme editor). Add, edit, delete, search, import/export text-to-text respellings. Four dictionary types: pronunciation, stress, compound, and character. Case-sensitive lookup with lowercase fallback. Cross-language browsing without switching the synthesis engine. Per-language dictionary type enable/disable. TalkBack and VoiceOver fully accessible. On the desktop phoneme editor, "Convert to IPA" buttons call eSpeak to populate IPA fields — a feature mobile can't match.
• Character dictionaries: New dictionary type for letter-name overrides during character navigation. Spanish letter-name dictionary included (issue #49).
• SAPI settings UI: Full settings panel for the Windows SAPI engine — sample rate, voicing tone (14 sliders), voice quality (creakiness, breathiness, jitter, shimmer, sharpness), pitch mode selector, inflection scale, and pause mode (Off/Short/Long). Settings persist in %APPDATA%\TGSpeechSapi\settings.ini. Installer now offers to launch settings after install.
• Win32 phoneme editor: dictionary editor: New Editor menu (File | Editor | Settings | Help) with full dictionary editor. Language and type selection, listview with search, add/edit/delete, import/export TSV. IPA fields are editable — "Convert to IPA" pre-fills from eSpeak, but users can hand-edit for exact control. Handles 110K-entry stress dictionaries. Also moved voice profile, allophone rule, and special coarticulation editors into the Editor menu.
• Phoneme overrides import/export: Share your phoneme tuning as files from the mobile editor. Merged YAML export preserves comments from the base pack.
• Pack import: Import shared pack YAML files — extracts settings as per-key overrides without replacing the base pack.
• Allophone rule conditions: New beforeSamePhoneme and afterSamePhoneme conditions for allophone rules, enabling geminate-aware rules.
• Unicode text normalization: NFKC normalization and zero-width character stripping applied to all input text before processing.

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Bug Fixes

• Phoneme overrides not reaching synthesis (iOS + Android): User-edited phoneme values from the mobile phoneme editor were saved correctly but never applied by the iOS Audio Unit extension or Android TTS service. Only the in-app preview heard changes — VoiceOver and TalkBack used factory defaults. Fixed on both platforms.
• iOS dictionary "Export all" broken: Two .fileExporter SwiftUI modifiers on the same view caused a conflict — export silently failed. Consolidated into a single modifier.
• Soft-knee peak limiter (issue #50): Replaced hard-knee limiter with soft-knee design (quadratic blend around threshold). Fixed Android distortion at high gain. Android output gain reduced from 3.0x to 1.6x.
• Voiced alveolar word-final /d/ inaudible: "created" sounded like "creadeh" — voiced_alveolar_word_final_soften rule was cutting too hard. Raised frication and burst scaling.
• Tap sounding like stop: Tap /ɾ/ lacked boundary smoothing, causing stop-like transient. Added tap-specific smoothing path.
• Ellipsis clause boundary: Unicode ellipsis (U+2026) now handled as clause boundary on all 6 platforms.
• Locale-sensitive number parsing (Hungarian, Polish): Process locale set by NVDA UI language caused atof/stod to parse decimal points as zeros. All pack float values now use locale-safe parsing.
• Hungarian geminate stop burst: Suppressed duplicate burst on extended stop closures in hu.yaml.
• Spanish velar approximant: Fixed /u/-like percept and word-final tap nasality in es.yaml.
• Dictionary autocorrect (issue #55): Disabled autocorrect and auto-capitalization on all dictionary editor text fields on iOS and Android. No more "xianxia" being corrected to "Shanghai".

Architecture

• Frame emission unified: Merged ~900 lines of duplicated acoustic math (stop bursts, trill modulation, tap notches, diphthong staircasing) from emitFrames and emitFramesEx into a single generateAcousticEvents<Emitter> template. Both public functions are now thin wrappers. Eliminates the ghost-bug risk of updating one path but not the other.
• Frontend refactored: ipa_engine.cpp split into ipa_engine.cpp + ipa_normalize.cpp + ipa_parser.cpp. text_parser.cpp split into text_parser.cpp + text_prepare.cpp + dict_lookup.cpp. Data query API extracted to frontend_data_api.cpp. YAML serialization deduplicated — phoneme editor reuses yaml_export.cpp.
• Orphaned iOS packs removed: iOS project.yml already referenced canonical packs/ via relative path. Stale local copy (122K lines including stress dict) deleted.

Platform Notes

• Android: Dictionary editor with search, export/share, TalkBack actions. Alpha track builds beta24–beta26.
• iOS: Dictionary editor matching Android feature set. Phoneme override fix for AU extension. Export fix. More Options button accessibility unified with phoneme editor.
• SAPI: Full settings UI. Installer post-install settings launch.
• NVDA: Unchanged from beta6 — benefits from engine-level fixes (locale parsing, frame emission).
• Linux: Makefile updated for new source file splits.
• Win32 Phoneme Editor: Dictionary editor with IPA conversion. Menu restructured.