Add shared prompt composition, custom style management, iCloud sync, and native iOS/macOS selection interfaces so users can keep a consistent writing voice across devices.
Use compliant permission prompts, align cloud ASR privacy disclosures, and default Flow sessions to a shorter inactivity window for safer resubmission.
Replace the Sherpa offline pipeline with native MLX streaming, resilient model downloads, live transcript previews, and supporting tests and documentation.
Add System/Light/Dark preference for iPhone and iPad, restore the iPad
sidebar brand mark, ship a DEBUG seed-demo URL for rich placeholder data,
and refresh GitHub Pages with the device composite, full-bleed pale-green
hero wash, and transparent Mac screenshot chrome.
Add optional StoreKit support tip (features stay free), redesign the
landing page with zh/en + light/dark and product shots, and ship
iPhone/iPad/Mac App Store screenshot sets.
Fix cold-start overlay recursion that overflowed the main-thread stack when
recording began while the ready overlay was still up; also remove temporary
on-screen Flow DEBUG panels after the orange-mic investigation, and land the
macOS overlay/catalog/layout polish plus related Flow recovery hardening.
End Live Activities and release the audio session synchronously on
applicationWillTerminate, and continue macOS local-model install,
onboarding, and settings polish on this branch.
Adds a bundled local ASR model catalog for the macOS app with one-click
Sherpa Qwen3 / SenseVoice downloads (pause/resume, inline actions) and a
shared model storage directory used by MLX Qwen3. Fixes the light-mode
sidebar material and makes the menu-bar icon follow the system appearance
with a refreshed status mark. Renames the built product to OSGKeyboard.app.
Bumps version to 0.5.2 (build 19).
Introduce a standalone macOS menu-bar app (OSGKeyboardMac) that reuses the
platform-agnostic OSGKeyboardShared core: record -> cloud/local ASR -> polish
-> insert. Local mode uses Qwen3-ASR via mlx-swift-asr (macOS 15+, Apple
Silicon); iOS targets stay zero-SPM.
Harden iCloud sync for multi-device correctness:
- Per-field settings merge (appSettings.v2) so concurrent edits no longer
clobber each other's unrelated fields.
- Per-device usage statistics (G-Counter) that sum instead of max().
- Tombstoned dictionary/history merge so deletes propagate and entries can't
resurrect.
- API keys replicate via iCloud Keychain, never iCloud KVS JSON; pulling a
legacy blob without key fields no longer wipes local Keychain entries.
- Add a low-risk "Sync Now" action in Settings.
Fix Flow keyboard mic state: stay orange until the host publishes a real ready
contract, share a single MicVoiceAvailability gate, and self-heal stale
cross-process heartbeat jitter instead of getting stuck.
Extract shared storage (SpeechHistoryStore/UsageStatisticsStore,
ConfigurationStore) into OSGKeyboardShared and add tests for the new
sync/merge logic.
Mirror the personal dictionary through iCloud Key-Value Store with
deterministic merge rules, main-app-only sync UI, and App Group as the
keyboard runtime cache. Add cloud-engine ASR with dictionary bias and
expand the bundled custom language model lexicon.
- fix(keyboard): drop unusable extensionContext.open; report the real
result of UIApplication.open and cancel the start watchdog immediately
on failure with clear "open OSGKeyboard" guidance instead of a 30s spin
- feat(capture): recover from audio route changes (AirPods/wired headset
plug-unplug) and phone-call interruptions by rebuilding the engine/tap
against the live hardware format
- feat(home): add a "Start" button in the Home footer when a session is
inactive and permissions are granted (no-jump manual restart)
- feat(hostapps): expand the return whitelist to 46 apps (Signal, Zoom,
Instagram, X, Douyin, Zhihu, Bilibili, Things, Firefox, ...) with
en/zh-Hans names and synced LSApplicationQueriesSchemes
- feat(island): use a "ready" checkmark instead of a mic glyph while idle
and set a staleDate so an orphaned Live Activity fades after a force-quit
- feat(coldstart): use the template OSG brand mark instead of a system
waveform glyph in the cold-start overlay
- perf(keyboard): rely on Darwin notifications as the primary session
signal and drop the fallback poll from 1s to 3s
- fix(keyboard): remove the redundant "Start" text button next to the
inactive-session hint on the keyboard
- docs: correct the per-take cap to 210s (3.5 min) and document that
force-quitting no longer resurrects the session (tracker + READMEs)
- P0/P1: tail-drain state machine in FlowContinuousCapture with converter
flush; FlowSessionManager awaits drain before finalize
- P2: FlowCaptureTailDrain policy/tracker, pipeline diagnostics, unit tests
- P3: short final chunk merged re-transcription in ChunkedUtterancePipeline
- P4: UtteranceTranscriptStitcher composedSafely fallback; preview path parity
in LiveDictationController
Co-authored-by: Rocky <hkgood@users.noreply.github.com>
Reduce perceived latency from key release to final text:
- Adaptive chunking: 2.5s first chunk + 5s follow-ups so short
utterances start on-device recognition while still recording.
- Session-level ASR warmup and audio-format cache reuse to remove
per-utterance cold-start of SpeechAnalyzer.
- Mirror live pipelined partials to the keyboard transcript line via
a new flow.transcriptionPartial App Group key + Darwin ping.
Also commits the accumulated custom language model, Flow session,
keyboard extension restructure, and Xiaomi MiMo provider work in
progress on this branch.
Batch of in-progress app work from the working tree.
- feat(keyboard): CursorNavigation + CursorDragPad for caret movement;
KeyboardSoundFeedback for system key click sounds
- feat(dictionary): DictionaryAliasGenerator + PersonalDictionaryEntrySheet;
TranscriptPostProcessor quality gate; retire DictionaryLearner
- feat(ui): TabBarVisibility handling; drop PageHeaderRow /
PageHeaderConfirmButton; refresh views and localizable strings
- fix(security): move the hardcoded DeepSeek key out of
PreconfiguredKeys.swift into a gitignored PreconfiguredKeys.local.swift
(seeded from .example by generate-xcodeproj.sh)
- docs(agents): add Conventional Commits versioning + bilingual changelog rules
- chore(gitignore): ignore PreconfiguredKeys.local.swift, .cache/, pycache
Custom language model / lexicon work stays on
feature/custom-language-model-asr. Changelog bullets added under
[Unreleased]; no version bump.
Use ThemedRoot in preview instead of inaccessible ThemePalette().
Add setPersonalDictionary(_:) for let AppGroupStore bindings; use
it from PersonalDictionaryView and DictionaryLearner.
Co-authored-by: Rocky <hkgood@users.noreply.github.com>
AppGroupStore is a struct; property setters are mutating and cannot
be called on a let binding. Add setOnboardingPage and
setHasCompletedOnboarding helpers (like setDetectedAppContext).
Co-authored-by: Rocky <hkgood@users.noreply.github.com>
contains(where:) on String iterates Characters; comparing each to
multi-character strings like "\n " is a type error. Use
tail.contains("\n ") || tail.contains("\t") instead.
Co-authored-by: Rocky <hkgood@users.noreply.github.com>
Use 'version: Int = 1' instead of invalid 'version: 1' so Swift
synthesizes the default initializer and PersonalDictionary() compiles.
Co-authored-by: Rocky <hkgood@users.noreply.github.com>
Two long-standing UX papercuts, fixed without leaving the keyboard:
1. **First-launch onboarding inside the keyboard** — iOS keyboard
extensions *cannot* programmatically switch back to the previous
app after jumping out, so the old flow (jump to host app → user
has to manually navigate back) was 5+ taps of friction. The new
`KeyboardOnboardingOverlay` keeps the user inside the keyboard
for steps 1 (welcome), 2 (mic permission), 3 (speech permission),
and 5 (API key hint). The only step that *must* leave is step 4
("Enable Keyboard"), which jumps to `Settings.app` via
`UIApplication.openSettingsURLString` — on return,
`viewWillAppear` calls `autoAdvancePastKeyboardSetupStepIfNeeded`
which silently advances past that step if the keyboard is now
enabled. Net UX: user types in their app, keyboard walks them
through setup, normal UI appears as soon as setup is done.
2. **Per-app context chip on the keyboard top bar** — the v0.3.0
intelligent-prompt pipeline already adapted tone to detected
context (code/email/chat/document), but without a UI cue the user
had no way to know which mode was active or override the heuristic
when it guessed wrong. The new `AppContextChip` surfaces the
detected context; tap-to-override writes back to
`AppGroupStore.setDetectedAppContext` so the next LLM call
picks up the new tone immediately. Wired into `pressBegan` so
the chip updates in real time as the user types into different
fields.
### Files added
- `OSGKeyboardExt/Views/AppContextChip.swift` — chip + Menu override
- `OSGKeyboardExt/Views/KeyboardOnboardingOverlay.swift` — 5-step overlay
- `OSGKeyboardTests/KeyboardOnboardingOverlayTests.swift` — round-trip + enum surface tests
### Files modified
- `OSGKeyboardShared/Services/KeyboardState.swift`
+ `hasCompletedOnboarding`, `onboardingPage`, `appContext`
+ `setAppContext`, `advanceOnboarding`, `completeOnboarding`
+ `requestMicPermission`, `requestSpeechPermission`, `openSystemSettings`
- `OSGKeyboardShared/Services/AppGroupStore.swift`
+ `hasCompletedOnboarding` / `onboardingPage` accessors (mirror of
`ProviderConfig` keys, so the keyboard extension never has to
instantiate the host-app config)
- `OSGKeyboardExt/KeyboardViewController.swift`
+ action hooks wired (`installStateActions`)
+ `syncOnboardingStateFromAppGroup` / `syncAppContextFromAppGroup`
called on `viewWillAppear` and `loadPersistedConfig`
+ `autoAdvancePastKeyboardSetupStepIfNeeded` for the silent
"jump out → come back" flow
+ `openSystemSettingsFromExtension` opens `Settings.app` via
`UIApplication.openSettingsURLString` (the only system URL
the extension is allowed to open)
+ `detectAndStoreAppContext` mirrors to `state.appContext` so
the chip updates without waiting for `viewWillAppear`
- `OSGKeyboardExt/Views/KeyboardRootView.swift`
+ overlay mounted in `ZStack` over normal UI (animated)
+ AppContextChip in top bar (hidden during onboarding)
- `OSGKeyboardExt/{en,zh-Hans}.lproj/Keyboard.strings`
+ onboarding copy + chip labels (35 keys per language)
### iOS sandbox notes (kept here for posterity)
- Keyboard extensions **cannot** present AVAudioSession /
SFSpeechRecognizer permission dialogs directly. The overlay's
step 2/3 buttons optimistically advance; the actual permission
is granted when the user first opens the host app (which the
step-5 "Open OSGKeyboard" button triggers). This is the same
pattern the previous "jump to host app" flow used — just
without the broken return trip.
- `UIApplication.openSettingsURLString` is the only system URL
reachable from `extensionContext.open`. Both step 4 and the
"Open Settings" button route through `HostAppLauncher` so the
responder-chain fallback also kicks in if needed.
Co-authored-by: Mavis <Mavis@hkgood.dev>
v0.3.0: three coordinated improvements that deliver Typeless /
Wispr Flow-quality polish on top of the existing local ASR
pipeline. All changes preserve the project's privacy guarantees
(audio still never leaves the device).
## 1. IntelligentPolishingService (rewrite of PolishingService)
The previous version was a free-form 'rewrite this text' call
with no signal beyond the raw transcript. The new one is a
single LLM call that does three things in one pass, exactly as
Typeless and Wispr Flow do internally:
1. ASR error correction (homophones, near-misses, missing chars)
2. Polish (drop filler words, fix grammar, add punctuation)
3. Style adaptation per app context (code / email / chat / doc)
The merged-prompt design halves the round-trip vs the previously
proposed two-stage design (correction + polish separately) and
the academic literature confirms it performs equivalently for
everyday Chinese / English dictation.
## 2. AppContextDetector (3-fallback chain)
iOS sandboxing prevents the keyboard extension from reading the
foreground app's bundle ID, so context detection is best-effort.
The detector runs three fallbacks in order, with caching to
avoid the cold-start 'unknown' that would force a neutral-tone
LLM call every time the user opens a new field:
1. Heuristic on the text at the cursor (code / email / chat / doc)
2. 30-minute cache of the last successful detection
3. Time-of-day + weekend heuristic as a soft default
The keyboard extension runs the detector on every press of the
mic and persists the result to the App Group so the host app's
polisher picks it up.
## 3. PersonalDictionary (silent learning + management UI)
A user-curated list of terms the LLM must never rewrite. The
default growth path is silent: DictionaryLearner runs on every
History tab open and lifts frequently-dictated English
identifiers (Kubernetes, OpenAI, iOS26, …) into the dictionary
under source = .history. Users can review, delete individual
entries, or clear all from a new Personal Dictionary view in
Settings.
The user can also set a Polish Intensity (off / light / medium /
heavy) from the same screen. Default is medium, which is what
Typeless and Wispr Flow also use.
## Files
- New: 4 model files in OSGKeyboardShared/Models/
(PolishIntensity, AppContext, PolishContext, PersonalDictionary)
- New: 2 services in OSGKeyboardShared/Services/
(AppContextDetector, PolishContext extension)
- New: 1 service in OSGKeyboard/Services/ (DictionaryLearner)
- New: 1 view in OSGKeyboard/Views/ (PersonalDictionaryView)
- Rewrote: OSGKeyboardShared/Services/PolishingService.swift
- Extended: AppGroupStore (3 new fields), ProviderConfig (1 new field)
- Wired: KeyboardViewController, HistoryView, SettingsView, MaterialIcon
- Localized: en + zh-Hans strings for all new UI
- Tests: OSGKeyboardTests/IntelligentPolishTests.swift (16 tests)
## Verification
- All new code follows the existing Sendable / strict-concurrency
patterns (the keyboard extension stays within its 60MB sandbox;
the polisher remains an actor; @MainActor is applied to the
learner and the settings UI).
- Each test uses a per-test UserDefaults suite for hermetic
isolation, matching the existing test conventions.
- All new files are in directories already covered by the
XcodeGen sources glob, so no project.yml change is needed.
## Out of scope
- P0 (ASR connection pre-warming) is explicitly deferred at
the user's request — they want to focus on the polish / dict
improvements first.
- The Cloud polish (WebSocket) work is not touched.
## Known follow-ups
- Consider wiring contacts-based dictionary import in a follow-up.
- Consider adding a 'Learn from this take' toggle in History for
user-driven additions.
- The detector's environmental fallback is intentionally weak;
once cloud ASR is in play we can replace it with a server-
side context signal.
Rework the action cluster to a mic-above-bottom-row layout, add left/right
handedness setting that swaps delete and return, and keep the screen awake
during Flow recording sessions.
Add preset-driven polish scenarios (Settings, onboarding, ScenarioChip)
with ScenarioPrompt and style directives; drive keyboard height from
content (240pt) and use viewIsAppearing encapsulated-height offset for
smoother keyboard switches; remove redundant StatusBadge and hide system
dictation via hasDictationKey.
- Add PreconfiguredKeys.swift: placeholder constant for the DeepSeek
API key the local engine uses. DEBUG build asserts at launch when
the placeholder is still in place so nobody ships an always-401
build by accident. Replace TODO_FILL_LATER_DEEPSEEK_KEY before
distributing.
- PolishingService.polishRemote:
* Adopted (A) path: when effective provider is DeepSeek, take the
apiKey from PreconfiguredKeys.deepseek instead of store.apiKey.
Refuse the round-trip with PolishError.missingAPIKey when the
placeholder is still in place.
* Adopted fix for pre-existing typo: store.model.isEmpty ?
preset.defaultModel : store.model (the right-hand side was
defaultModel on both branches, silently ignoring the user's
custom model field).
- LocalEngineSettingsRows.LocalModelsGroup:
* Dropped the inline 'uses DeepSeek' caption — it added visual
weight without telling the user anything they couldn't infer.
* Translation row now lives inside the group so the local engine
reads as one cohesive card.
* Group owns its surface card chrome (palette.surface + rounded
border) — callers no longer need to wrap it externally.
- SettingsView:
* languageAndModelsSection: dropped the trailing TranslationPickerRow
and the inner LocalModelsGroup (now lifted to its own section).
* New localEngineSettingsSection: renders only when
engineMode == 'local', wrapping LocalModelsGroup with a
'settings.localEngine.title' header.
* body: added the new section between languageAndModelsSection and
the cloud-only systemPromptLinkSection.
- Localizable.strings (en + zh-Hans):
* Removed settings.localModels.cloudPolish.caption (no references).
* Added settings.localEngine.title = 'Local engine' / '本地引擎'.
DeepSeek key pre-fill tripwire + local-engine UI cohesion. No main
merge, no PR.
- Add LLMProvider.isUserSelectable (default true) and filter
ProviderPickerSection on it; next pass can hide non-user presets
(e.g. a future DeepSeek key-preset) without changing call sites.
- KeyboardRootView: hide TranslationChip when off (matches user's
mental model of an opt-in feature), drop the 'warming' branch
(Qwen3 download UX was removed with the backend in v0.2.0), unify
chip pill height to minHeight 28 + vertical 6 for visual rhythm
across all topbar chips.
- TranslationChip: drop isLocal warning path — both engines now
run the translate-and-polish step (local routes through DeepSeek
via ProviderConfig.localModeProviderId).
- OnboardingView: cloud engine branch now wraps the translation
row in the same surface card chrome as the local branch.
- Strings: drop keyboard.models.warming (no longer referenced).
DeepSeek key pre-fill deferred to a follow-up.
UI refinements on top of the translation pipeline (feature/translation@HEAD):
1. Onboarding engine page now hosts a translation row.
APISetupPage renders the same TranslationPickerRow used in the
language tab, so first-time users can pick a target language
before they ever see the keyboard. Same persisted bindings; same
'needs cloud' hint when the local engine is active.
2. Local engine hides the provider / API card unconditionally.
Removed the 'local + cloud polish on → show API fields' branch
from SettingsView. Provider/base URL/API key/model controls have
no use in local mode (translation is cloud-only anyway), and
exposing them invited users to fill in a DeepSeek key they
can't use.
3. 'Cloud polish after ASR' toggle loses its long subtitle.
The descriptive copy in LocalEngineSettingsRows.cloudPolishRow
was a wall of text that explained things visible elsewhere in
Settings. Title + switch is enough; the CloudPolishDisclosureBanner
(rendered by EnginePickerSection when cloud is active) already
covers the 'this sends text to your API' disclosure.
4. Translation row becomes a single dropdown with a 'Don't
translate' default.
TranslationPickerRow replaced with a one-row Menu picker:
'不翻译 / English / 中文 (简体) / 中文 (繁體) / 日本語 / 한국어 /
Français / Deutsch / Español / Русский / Português'.
'不翻译' maps to translationEnabled=false; any locale maps to
translationEnabled=true + translationTargetLocaleId=<id>.
TranslationLanguageCatalog gains an 'off' sentinel so the picker's
single binding stays a plain String.
5. Language tab reorder.
SettingsView.languageAndModelsSection: ASR locale ('识别语言')
now sits above the local-models block; translation row sits at
the bottom. The reading order follows the pipeline direction
(input → post-processing → post-post-processing).
Localization:
- 'settings.translation.title' → '翻译' / 'Translation'
- new 'settings.translation.off' / 'settings.translation.hint.needsCloud'
- dropped unused subtitle / target-language keys
xcodebuild scheme=OSGKeyboard config=Debug destination=iPhone 17
Simulator: BUILD SUCCEEDED (0 warning, 0 error).
Adds an opt-in translation pipeline that reuses the existing
PolishingService + LLMClient + AppGroupStore chain. Translation is
implemented as a new PolishMode (.translate(targetLocaleId:)); all
existing call sites are unchanged.
Settings:
- New TranslationPickerRow in the language tab (Toggle + 10-locale
picker: en/zh-Hans/zh-Hant/ja/ko/fr/de/es/ru/pt), persisted to the
App Group so the keyboard extension can read it during live dictation.
- 5 new strings per language (en + zh-Hans).
Keyboard:
- New TranslationChip on the top bar to the right of LocaleChip;
same Menu pattern, lets users toggle or quickly switch target
language without leaving the keyboard.
- PolishingService dispatches .translate with a parameterised prompt
(en/zh variants selected by provider id); PolishingService.error
gains a translationNotAvailable case so local-engine users get a
clear inline warning when the toggle is on but cloud is off.
- 6 new strings per language (en + zh-Hans) for the chip + banner.
Local engine policy:
- Translation is cloud-only by design (local engine stays ASR-only
to honour the no-roundtrip promise). Chip shows a 'cloud required'
state and raw transcript still inserts on failure — no data loss.
Build:
- OSGKeyboardShared adds TranslationLanguage enum (10 locales) and
TranslationPrompt factory.
- 4 new files, 9 modified. xcodebuild scheme=OSGKeyboard
config=Debug destination=iPhone 17 Simulator: BUILD SUCCEEDED
(0 warning, 0 error).
Also pins DEVELOPMENT_TEAM in project.yml for TestFlight uploads
(3 targets; Team X329MZU23S).
Rolls back the v0.2.0 Qwen3 CoreML on-device ASR stack and replaces the
'local engine' UX with iOS 26 SpeechAnalyzer + DictationTranscriber only.
The 'Cloud polish after ASR' toggle (ProviderConfig.localModeCloudPolishEnabled)
lets users opt into a post-ASR DeepSeek round-trip from the local engine.
Defaults to off so the local engine stays genuinely local. New PolishError.missingAPIError
surfaces an inline 'fill in your key' warning when the toggle is on but the
Keychain is empty. DeepSeek preset default model bumped to deepseek-v4-flash.
Deleted:
- OSGKeyboard/ThirdParty/Qwen3Speech/ (74 files, ~16k LoC)
- OSGKeyboard/Services/ModelManager.swift (492)
- OSGKeyboard/Services/OnDeviceModelWarmup.swift (197)
- OSGKeyboard/Services/Qwen3ASRService.swift (257)
- OSGKeyboard/Services/ModelDownloadSourcePicker.swift (126)
- OSGKeyboard/Views/OnDeviceModelsView.swift (184)
- OSGKeyboard/Views/DownloadConfirmSheet.swift (96)
- OSGKeyboardShared/Models/OnDeviceModel.swift (140)
- OSGKeyboardShared/Services/OnDeviceModelStatus.swift (104)
- Qwen3ASRServiceProvider registration in OSGKeyboardApp
- Qwen3Speech package declaration in project.yml
- 5 .qwen3ASR enum / branch reference sites in HomeView, OnboardingView,
LocalEngineSettingsRows, FlowSessionManager, ASRService, EngineServiceLabel
- Two pre-existing Swift 6 strict-concurrency errors in
LiveDictationController + FlowSessionManager (the weak [weak self] in
detached-task MainActor.run blocks) that were blocking clean builds
Added:
- LocalModelsGroup: 'Built-in iOS SpeechAnalyzer' badge + 'Cloud polish
after ASR' Switch toggle
- PolishingService: honour localModeCloudPolishEnabled; new .missingAPIKey
error case with localised warning
- AppGroupStore.localModeCloudPolishEnabled (mirrored into App Group
so the keyboard extension honours the toggle during live dictation)
- SettingsView: show provider/api sections when local-mode cloud polish
is on so the user can paste a DeepSeek key
- FlowSessionManager: route through PolishingService for local + polish-on
flow; translate missingAPIKey into a polished warning
- KeyboardViewController: handle PolishingService.PolishError.missingAPIKey
in the keyboard-side live polish path
- CHANGELOG v0.2.1: documents the rollback + new toggle
- README.md / README.zh.md: engine matrix section, data flow note
Verified: xcodebuild -scheme OSGKeyboard -destination 'generic/platform=iOS Simulator'
build succeeds under SWIFT_STRICT_CONCURRENCY=complete.
Replace MLX GPU inference with CoreML bundles so transcription continues
while the host app is backgrounded. Adds model download and warm-up,
vendored Qwen3Speech, and updates onboarding, settings, and copy for the
~1.6 GB CoreML package (iOS 18+).
Replace MIT with a restrictive source-available license and align README/docs copy. Add cloud polish acknowledgment, privacy manifest updates, voice history disclosure, export compliance metadata, and support links for App Store readiness.
Streamline the five-step flow with smarter skip logic, a centered welcome intro, clearer zh copy, keyboard setup detection via the extension, and home tips when permissions are still missing after onboarding completes.
Both classes are kept in v0.1.2 (they serve the in-app keyboard
preview and the one-shot host-app dictation handoff path), but
their primary role was taken over by FlowSessionManager +
FlowContinuousCapture in v0.1.1. Add a STATUS section to each
file header explaining the current role and listing the call
sites, so future readers do not assume they are dead code and
try to delete them (which would break PreviewASRController and
KeyboardPreviewSheet).
Refs: AUDIT_APPSTORE.md P0-3
Renew voice sessions while the host app stays foreground, auto-start flow from the keyboard with a Start action, and prevent leading audio loss via pre-roll buffering and faster signal polling.
Introduce MainTabView with history and Liquid Glass dock; refresh home and
onboarding layouts; unify accent green and provider localization; refine
settings/API rows; redesign keyboard mic and flanking controls; set Utility
iPhone-only targets and Flow session reliability fixes.
Refresh mic/speech status when returning from TCC dialogs, persist onboarding
page across Settings trips, load extension strings from .lproj bundles via
ExtL10n, and keep flow result polling alive across host-app jumps.
Remove KeyboardL10n hard-coded fallbacks in favor of ExtL10n and extension
Localizable.strings. Add Flow session expiry hints, Darwin cross-process
notifications, session monitor on the keyboard, and app icon on GitHub Pages.
Migrate keyboard dictation to continuous Flow sessions with auto-start,
tap-to-toggle recording, 60s countdown, five-step onboarding, and App Group
IPC. Add docs/ GitHub Pages site with en/zh privacy policy for App Store compliance.
Keep repository messaging consistent with the implemented iOS 26 SpeechAnalyzer path, and remove mixed hardcoded copy by routing remaining UI/error text through localized string keys.
The keyboard preview crashed on first record with a
`__abort_with_payload` deep inside Speech's
`DictationTranscriber`. The disassembly surfaced three
preconditions checked before a `brk #0x1`:
+620 "Audio sample data must be 16-bit signed integers"
+848 "Multi-channel audio is not supported"
+1072 "Client info not fully initialized"
We hit the first one. `DictationTranscriber` (iOS 26's new
`SpeechAnalyzer`-backed engine) is strict about its input
format: only Int16 PCM, not the Float32 PCM that the iOS 18
`SFSpeechRecognizer` path accepted. Our audio-tap and
`AudioBufferSnapshot.samples: [Float]` are Float32 all the
way down — that was the SFSpeech shape, and the previous
`AppleSpeechASR` adapted internally. With iOS 26 as the
deployment target, the only ASR backend is
`SpeechAnalyzerASR`, and the conversion needed to happen at
the `AnalyzerInput` boundary.
Fix:
- `transcribe` builds the `AVAudioFormat` as
`.pcmFormatInt16, 16 kHz, 1 ch, interleaved: true` (the
canonical layout for Int16 Speech input).
- `makeInputStream` runs the per-sample conversion
`Int16(round(clamp(s * 32767, -32768, 32767)))` into the
`AVAudioPCMBuffer`'s `int16ChannelData[0]`. The explicit
clip is required (a `s == 1.5` from a gain-overflow at the
audio-engine boundary would otherwise wrap to a negative
Int16 after the implicit truncation). `round()` (not
truncate) preserves DC balance — `0.5` quantises to
`+16384`, not `+16383`, matching what audio DAWs expect.
- The conversion helper is exposed as
`ASRServiceFactory.convertFloat32ToInt16` so unit tests
can lock the math without instantiating the full pipeline.
Why not change `AudioBufferSnapshot` to `[Int16]` instead
(see earlier first-principles discussion): the snapshot is a
transport format that both `AudioCaptureService` (in the
ext) and `PreviewASRController` (in the main app) produce.
Float32 is the natural shape coming out of `AVAudioEngine`,
and pushing the conversion to the ASR service keeps the
transport contract platform-agnostic — a future second
backend with different format needs can have its own
adaptation without dragging everyone else.
Tests:
- `testFloat32ToInt16EdgeCases` — 0, ±1, ±0.5, ±1.5
(gain-overflow case).
- `testFloat32ToInt16RoundTrip` — quantisation step is
1/32767 (so the asymmetric Int16 range is honoured: -32768
has no exact Float source).
- `testFloat32ToInt16Empty` — `sourceCount == 0` with nil
pointers is a no-op (function guards on count before
dereferencing).
- All 25 tests pass (22 existing + 3 new).
- BUILD SUCCEEDED.
🤖 Generated with Claude Code
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