LiveTranscriber

Documentation

This folder contains focused engineering notes for LiveTranscriber. Keep user-facing overview content in the root README.md; keep implementation decisions and debugging notes in DEVELOPMENT_NOTES.md.

Files

• Current Product and UI Design: Current app structure, interaction model, visual tokens, and screen-level UI behavior.
• Recording Processing Pipeline: AVCaptureSession audio capture, transcription fan-out, and stereo recording decisions.
• Live Activity Design: Lock Screen and Dynamic Island state, layout, and update policy.
• Localization: Semantic string catalog rules, Swift usage patterns, and steps for adding a new language.
• Development Notes: Full project log, feature notes, tradeoffs, and TestFlight checklist.

Current Architecture

The app has three main runtime areas:

1. ContentView owns the top-level tab shell and wires shared LiveTranscriptionManager and RecordingStore instances into the recording, library, and settings views.
2. LiveTranscriptionManager owns the live recording session, AVCaptureSession Stereo Capture path, SpeechAnalyzer pipeline, transcript lines, elapsed timer, selected language/format, and Live Activity updates.
3. RecordingStore owns saved recording metadata, local app-private storage by default, optional app-private iCloud storage, SwiftData local/CloudKit private index persistence, import transcription, re-transcription, deletion, search inputs, and Apple Intelligence analysis.
4. RecordingsView owns the file-library UI: search, import picker, row actions, swipe actions, detail navigation, playback, transcript seek, sharing, copy, delete, re-transcribe, and summary/tag generation.
5. AppTheme, AppTypography, EmptyStateView, and HapticFeedback define the shared visual and tactile design language.
6. LiveTranscriberWidget renders ActivityKit content for Lock Screen and Dynamic Island.

Build Verification

Use the same command as the root README:

/Applications/Xcode-beta.app/Contents/Developer/usr/bin/xcodebuild \
  -quiet \
  -project LiveTranscriber.xcodeproj \
  -scheme LiveTranscriber \
  -destination 'generic/platform=iOS' \
  -derivedDataPath /tmp/LiveTranscriberDerivedData \
  CODE_SIGNING_ALLOWED=NO \
  build

This site is open source. Improve this page.