feat: play timestamped query evidence and read answers aloud - #4227
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Included review availability: Your plan provides up to 4 included reviews per hour; 0 remain after this review. 📝 WalkthroughWalkthroughAdds query-chat audio evidence playback from saved recordings, optional timing preparation through supported transcription models, local read-aloud for saved answers, persisted timing metadata, localized interface text, and cancellation-safe TTS cleanup. ChangesQuery audio evidence
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Suggested reviewers: Merge Risk: ⚪ Minimal · up to No actionable merge-blocking risk remains in the reviewed changes. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches 💡 1🛠️ Fix failing CI checks 💡
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Additional details and impacted files@@ Coverage Diff @@
## main #4227 +/- ##
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Coverage 99.35% 99.35%
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Files 2116 2122 +6
Lines 170584 171161 +577
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+ Hits 169479 170053 +574
- Misses 1105 1108 +3
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Actionable comments posted: 9
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Inline comments:
In `@lib/features/agents/query/query_audio_controller.dart`:
- Around line 233-237: Update the file-processing flow in playEvidence so that
when generate is true it checks the recording size against maxUploadBytes before
opening or reading the file, returning QueryAudioStatus.tooLarge for oversized
uploads. Preserve the existing existence validation and hashing behavior for
files within the limit.
In `@lib/features/agents/query/query_audio_excerpt.dart`:
- Line 27: Update the duration guard in the audio excerpt matching flow to
reject only negative durations, allowing zero-duration recordings to continue to
the timed-speech fallback that derives recordingEnd. Preserve the existing
handling for negative durations and the downstream positive-duration behavior.
In `@lib/features/agents/query/query_audio_timing_service.dart`:
- Around line 92-93: Validate the user-overridable provider.baseUrl scheme as
HTTPS in both transcription repositories before constructing or sending requests
with provider.apiKey; reject non-HTTPS endpoints while preserving existing
behavior for valid HTTPS URLs.
In `@lib/features/agents/query/query_audio_timing_writer.dart`:
- Around line 39-41: Update the transcriptTimings write in the timing writer to
merge the new timing into the existing map rather than replacing it. Preserve
entries for other sourceFingerprint keys so previously prepared evidence remains
playable, while still overwriting the matching key with the latest timing.
In `@lib/features/tts/state/tts_playback_controller.dart`:
- Line 223: Update _deleteFile in SupertonicOnnxEngine to ignore only confirmed
missing-file errors; retry or report permission, locking, and other
FileSystemException failures so synthesized WAVs are not silently retained.
- Line 43: Update the disposal callback’s unawaited _stopAndDelete call to
attach an error handler that reports failures from TtsAudioPlayer.stop(),
preventing rejected cleanup futures from becoming uncaught asynchronous errors.
In `@lib/l10n/app_localizations_da.dart`:
- Line 10971: Update the authoritative queryAudioStop entry in app_da.arb to use
“Stop afspilningen”, then regenerate the Danish localization output so
app_localizations_da.dart reflects the ARB source; do not edit the generated
Dart file directly.
In `@lib/l10n/app_localizations_pt.dart`:
- Around line 11044-11045: Update the queryAudioFailed translation in the
Portuguese ARB source to use the informal Portuguese register consistently with
surrounding query* messages, then regenerate the localization output with make
l10n so app_localizations_pt.dart reflects the ARB change.
In `@lib/l10n/app_localizations_ro.dart`:
- Line 11170: Update the queryAudioReadAloud translation in app_ro.arb to use a
listener-facing label such as “Ascultați răspunsul” or “Redați răspunsul cu voce
tare”, then regenerate the corresponding app_localizations_ro.dart output.
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📒 Files selected for processing (65)
changelog.d/2026-09-11-query-audio-evidence.mdknowledge/features/agents/query-chat.mdknowledge/features/tts.mdlib/classes/audio_transcript_timing.dartlib/classes/audio_transcript_timing.freezed.dartlib/classes/audio_transcript_timing.g.dartlib/classes/journal_entities.dartlib/classes/journal_entities.freezed.dartlib/classes/journal_entities.g.dartlib/features/agents/README.mdlib/features/agents/query/query_audio_controller.dartlib/features/agents/query/query_audio_excerpt.dartlib/features/agents/query/query_audio_timing_service.dartlib/features/agents/query/query_audio_timing_writer.dartlib/features/agents/query/query_chat_providers.dartlib/features/agents/query/query_text_inference.dartlib/features/agents/ui/query/query_audio_controls.dartlib/features/agents/ui/query/query_chat_pane.dartlib/features/agents/ui/query/query_evidence_card.dartlib/features/ai/repository/melious_inference_repository.dartlib/features/ai/repository/mistral_transcription_repository.dartlib/features/ai/repository/transcription_repository.dartlib/features/ai/util/temporary_mp3_encoder.dartlib/features/tts/README.mdlib/features/tts/state/tts_audio_player.dartlib/features/tts/state/tts_playback_controller.dartlib/l10n/app_cs.arblib/l10n/app_da.arblib/l10n/app_de.arblib/l10n/app_en.arblib/l10n/app_es.arblib/l10n/app_fr.arblib/l10n/app_it.arblib/l10n/app_localizations.dartlib/l10n/app_localizations_cs.dartlib/l10n/app_localizations_da.dartlib/l10n/app_localizations_de.dartlib/l10n/app_localizations_en.dartlib/l10n/app_localizations_es.dartlib/l10n/app_localizations_fr.dartlib/l10n/app_localizations_it.dartlib/l10n/app_localizations_nl.dartlib/l10n/app_localizations_pt.dartlib/l10n/app_localizations_ro.dartlib/l10n/app_localizations_sv.dartlib/l10n/app_nl.arblib/l10n/app_pt.arblib/l10n/app_ro.arblib/l10n/app_sv.arbtest/classes/audio_transcript_timing_test.darttest/classes/journal_entities_test.darttest/features/agents/query/query_audio_controller_test.darttest/features/agents/query/query_audio_excerpt_test.darttest/features/agents/query/query_audio_test_bench.darttest/features/agents/query/query_audio_test_utils.darttest/features/agents/query/query_audio_timing_service_test.darttest/features/agents/query/query_audio_timing_writer_test.darttest/features/agents/query/query_text_inference_test.darttest/features/agents/ui/query/query_audio_controls_test.darttest/features/ai/repository/cloud_inference_generate_more_test.darttest/features/ai/repository/melious_inference_repository_test.darttest/features/ai/repository/transcription_repository_test.darttest/features/tts/state/tts_audio_player_test.darttest/features/tts/state/tts_playback_controller_test.darttest/features/tts/test_utils.dart
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Query answers currently link to recordings but cannot play the quoted discussion. This adds a timestamped Listen action for saved recording evidence and Read answer aloud through the existing local TTS engine.
Timing generation supports Melious Whisper and dedicated Mistral Voxtral transcription models configured in the agent/category inference profile. The original recording must be available on the device. New timing uploads are limited to 25 MB to bound mobile memory use; existing timing can play larger recordings. Timing is retained per source-text fingerprint, and missing duration metadata uses the last timed speech as a conservative end boundary. Read-aloud uses the existing optional TTS setting. Clip export, streaming preparation of larger recordings, additional timing providers, continuous voice conversation, and an agent avatar remain follow-ups.
Validation: all ten unit/widget shards and Glados property tests pass in CI, with 99.50% changed-line coverage and 99.35% overall coverage. Analyzer, knowledge/Mermaid validation, changelog validation, and the synthetic mobile/desktop screenshot captures pass. Cancellation and cleanup regressions were confirmed failing before their fixes. Transcription transport and native playback are exercised with synthetic fixtures and test doubles; no live provider calls were made. macOS, Android, and the German screenshot capture also pass.
Synthetic penguin fixtures only. Baseline captures precede the visual change.