[abretonc7s]

Validate audio-studio, sherpa-onnx.rn and moonshine.rn on web

Recorded web runs in Chrome of the playground and sherpa-voice, plus fixes for every failure they found.

Fixes

• sherpa-onnx.rn
  • Web initTts names the model, tokens or lexicon URLs it couldn't fetch, including when none of them loads. It removes the files that did load, then their directory. Before, a missing lexicon crashed with memory access out of bounds, and a total download failure gave a bare Failed to load TTS model files.
  • Web FileSystem.removePath removes directories. isDirectory read stat.isDir, which Emscripten doesn't set, so directories were sent to unlink and stayed.
  • Non-VITS models are rejected with a clear error. The README documents VITS-only web TTS.
  • The web loader clears its 30 s backup timer, so Module loading timeout reached no longer fires after a successful load.
  • Tests: webTtsInit.test.ts, webFileSystem.test.ts, webCombinedLoader.test.ts.
• sherpa-voice
  • On web, the ASR, speaker ID and audio tagging sample cards show the real size and duration instead of 0 Bytes / 0:00. getInfoAsync doesn't exist on web, so web fetches the file.
  • Test: fileUtils.test.ts.
• playground
  • build:deps also builds the sherpa-onnx.rn and moonshine.rn lib/, which were stale.
  • Test: config/build-deps.test.ts.
• agentic tooling
  • web-browser.mjs adds WEB_FAKE_AUDIO_FILE for fake mic capture from a WAV.
  • Two recipe tests no longer depend on slot env.
  • Four new web recipes. The sherpa recipes restore the route they started on. The Moonshine recipe waits for the stop to settle and checks the final transcript.

Evidence (web)

Flow	Run	Result
audio-studio: record, pause/resume, stop, playback, waveform and mel views, preview, decode, features, trim	audio-studio-web-validation	Pause Δ0 ms, resume +2 s, playback past 0.5 s, waveform 82,560 samples, mel 498 steps
sherpa ASR file + Live Mic	web-asr-validation	Both transcripts contain "my fellow Americans", card shows 343.83 KB / 0:11
sherpa TTS with the hosted lexicon	web-tts-validation	"Speech played successfully!"; the lexicon came from the Hugging Face URL (HTTP 200)
moonshine model load + live transcription	moonshine-web-live-transcription	Live interim and final transcript "And so, my fellow American."
TTS failure cleanup	probe forcing 404s	Errors name the failed URLs; no /wasm/tts-* directory left behind
All of the above in one session	task recipe 20261107030405563-74735	177/177 in 84 s. sherpa-voice starts on a pushed route and returns to it; Metro then switches to the playground and the tab reloads. Playground load window: 0 console errors

The slot serves a local sherpa-onnx 2.0.1 WASM, asserted in the run, because the farm's copy is 1.3.1.

Checks:

• sherpa-onnx.rn: 97/97 tests; typecheck clean.
• playground: test:config 16/16.
• sherpa-voice: fileUtils.test.ts 4/4 with jest CLI overrides (the app's yarn test needs @react-native/jest-preset, which isn't installed); tsc clean.
• repo: check:deps passes; all 48 recipes validate.
• ESLint: no new errors.

Limits

• Native: iOS and Android weren't run.
  • The getFileSize native branch keeps the same getInfoAsync call and is unit-tested only.
  • build:deps changes the lib/ bundled on every platform.
  • Both need a device run before merge.
• sherpa-voice unit test isn't run by CI: no CI job covers sherpa-voice, and its Jest setup needs @react-native/jest-preset. The web fix is also asserted by the sherpa ASR recipe.
• Playground loads the published 2.0.0 glue from jsDelivr, so it gets the loader and removePath fixes only after a release.
• Moonshine + Sherpa live mode stays native-only in the playground. The playground hook resolves native asset URIs, while the package parts run on web.

Screenshots/Recordings

Full evidence gallery and publication receipt

• Teardown segment video: recipe-run-3.mp4

Publication approval

farm-automation · service · farm-automation · 2026-11-07T03:57:28.538Z
Package: d7d26c9e540f2ba5d02cd4d110960dc1b8b0ed7e47b65def89eec3bf02a3ee73. Visual receipts: pipeline-sha256:0ef5850080e20b601a9fdadc7cd77c653708aaf268c65851f715fa6447b3a2d2, pipeline-sha256:17a137dae9c3050fd443be893a758a5792909d0ab25ba44f249421735302c9dc, pipeline-sha256:392349c4f3ea8cff455c8ed5fe94b6f9d4fa1b061df1349558a9f2e32fa4768f, pipeline-sha256:4003074c45592979f325f0e3c14f8d520cd95e07eef20d855136a7364723b572, pipeline-sha256:5ed45b66b428a9dea536a79a2ced137779c2e3d00e2266cb2b3233435be084c9, pipeline-sha256:93231ecf693d763da4814954e0dbf0f6df8d4f14a540c2720442d15eca89994b, pipeline-sha256:94eca704ace2ee7828bb89a4460f41e6978476073f7e22beaf8951091178af24, pipeline-sha256:98785c9be59b12a9bd7bb7da7beaa04da055641a538041465eedbc61897b9c4a, pipeline-sha256:a05bedac10b3ba462a0de095f2f14738d709b8bb4448da7be0d01b6c425b0a96, pipeline-sha256:b7f29975d8b1165593dab5be370b9815944c875d806f0cda0765827ad29a2c43, pipeline-sha256:b8359e1355c22e9d7b6fc032881e9fddbfa62b2fe109a20a25e69806b66420f8, pipeline-sha256:e5955a7d27e36b45f174ba40a57bf93c18b987bad33e67092eae256c882c4793.

Description

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Performance improvement
• Refactoring

Architecture Decision

Test-Driven Development Checklist

Note: TDD is recommended but not required. The testing framework is newly available, and test coverage is being improved incrementally.

Pre-Implementation (for new features - recommended)

• Architecture document created/updated
• API design reviewed
• Test plan created with test cases
• Tests written before implementation (when feasible)

Implementation

• TypeScript interfaces/types defined
• iOS implementation complete
• Android implementation complete
• Web implementation complete (if applicable)

Testing

• Unit tests included (recommended)
• iOS platform tests pass
• Android platform tests pass
• Integration tests included (when applicable)
• Cross-platform consistency verified
• Test coverage adequate for the change
• Edge cases and error scenarios considered
• Performance impact measured (if applicable)

Test Evidence

# Test output (if applicable)
./scripts/run_tests.sh all
...

Documentation

• API documentation updated
• Usage examples added (if new feature)
• CHANGELOG.md updated
• README updated (if needed)

Breaking Changes

Related Issues

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• Tests are included (recommended for new features and bug fixes)
• Existing tests pass locally with my changes
• Any dependent changes have been merged and published

Additional Notes

Visual judgments

Execution: d0acd43a-9e2e-49af-9aad-6c76b76694f3

Criterion	Verdict	Reviewed by
AC-2: AC-2: audio-studio on web: record, pause/resume, stop, playback, waveform/feature extraction the playground exposes.	proven	Verified by agent · Independent review
AC-3: AC-3: sherpa-onnx on web: model load and at least one ASR flow and one TTS flow the playground exposes.	proven	Verified by agent · Independent review
AC-4: AC-4: moonshine on web: model load and live transcription.	proven	Verified by agent · Independent review
sherpa-asr/sample-info: Selecting a bundled sample on web shows its real size and duration.	proven	Verified by agent · Independent review

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud