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VoiceShield v0.1.0 — Advisory Engineering Release

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@ABHIGYA0205 ABHIGYA0205 released this 24 Oct 20:29
· 7 commits to main since this release
v0.1.0
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VoiceShield v0.1.0

VoiceShield v0.1.0 is a portfolio-grade advisory acoustic anomaly analysis engineering release for authorized local microphone streams and WAV/FLAC files.

VoiceShield does not authenticate speakers, prove identity, determine fraud, intercept cellular calls, or automatically block communications.

Supported scope

  • Local development and demonstration on Apple Silicon Macs
  • Authorized local microphone capture
  • WAV and FLAC file analysis
  • Real-time advisory acoustic anomaly scoring
  • CPU and Apple MPS execution
  • Official AASIST-L checkpoint loaded separately from its pinned upstream source
  • Explicit insufficient-speech abstention and audio-quality diagnostics
  • Volatile audio processing without intentional persistent audio storage

Validation evidence

  • 494 Python tests passed
  • 88.60% Python coverage
  • 27 Vitest tests passed
  • Mocked Playwright suite passed
  • 3 live frontend/backend Playwright tests passed
  • Linux CPU-only CI passed
  • Security workflow passed
  • Chrome and Safari manual smoke testing completed
  • Official AASIST-L checkpoint integrity and provenance verified
  • Real-checkpoint CPU and MPS benchmark completed on Apple M3

Verified GitHub Actions

Apple M3 real-checkpoint benchmark

The benchmark used the verified official AASIST-L checkpoint, 10 warm-up iterations, and 100 steady-state iterations per measured stage.

Device Model inference p50 Model inference p95 End-to-end p50 End-to-end p95 End-to-end RTF
CPU 112.999 ms 129.814 ms 111.981 ms 117.614 ms 0.02800
MPS 30.187 ms 30.761 ms 33.754 ms 34.546 ms 0.00844

MPS end-to-end execution was 3.32× faster than CPU in this measured run.

A 600-second accelerated streaming stress soak completed with:

  • 18,386 evaluated windows
  • 0 reported dropped windows
  • Maximum backlog of 1
  • 0.00 MB measured RSS growth
  • Bounded memory and backlog verdict: passed

Accelerated ingestion is not real-time-paced. These results are engineering latency and stability measurements, not detection-accuracy evidence.

Benchmark artifacts

Artifact SHA-256:

  • Markdown: 5fc5432b220e4c5b9ed2a980948a6fa8c7de32808c1a8d8e88e8873049531438
  • JSON: 73b548187230662ef487b4829cf36b3e0e6f7ee494d9937956353a7fdbd74405

Official checkpoint SHA-256:

814331d088032bb4c3fa61cc014789eadeed464209dd094ab3a2dd6ffbdce27a

Important scientific limitations

  • Local ASVspoof scientific reproduction has not been completed.
  • Local EER, min-tDCF, ROC-AUC, balanced accuracy, FPR/FNR, and confidence intervals remain unmeasured.
  • Scores are uncalibrated acoustic anomaly scores, not probabilities.
  • Operating thresholds remain unvalidated heuristics.
  • No accuracy claim is made for modern generators, Indic languages, replay attacks, codecs, telephony, or noisy channels.
  • VoiceShield cannot intercept cellular calls.
  • VoiceShield does not automatically block calls.
  • VoiceShield is not identity proof or fraud proof.
  • This release is not a production-deployment or security certification.

Checkpoint and licensing boundary

Original VoiceShield code is released under Apache-2.0. Vendored AASIST source retains its MIT terms.

The AASIST-L checkpoint and evaluation datasets have separate rights and are not redistributed with this release. Obtain the checkpoint directly from the pinned upstream source and verify its SHA-256 before use.

See the repository README, model card, evaluation card, benchmark evidence, and release notes for complete setup instructions and limitations.

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