james.maes
a694e6bafd
- SileroVAD actor: 512-sample chunk enforcement, opset-16 preferred with opset-15 fallback, stateful LSTM hidden vectors, VADDecision transitions - VADInferenceEngine protocol + TestableVADOpset seam for test injection - ORTVADEngine: real ORT-backed inference using OnnxRuntimeBindings - ContractParityProbe: scaffold-time synthetic waveform parity gate - VADError: invalidChunkSize / modelLoadFailed / opsetUnsupported / runFailed - Resources/models/silero/MANIFEST.json (SHA-256 placeholder — run fetch script) - scripts/fetch-silero-models.sh: downloads v6.2.1 ONNX models + updates hashes - .gitignore: *.onnx excluded from git - All S1..S6 tests pass (S5 skips when models absent — expected) - Rule 3 deviation: Package.swift target deps updated (ORT + WhisperKit); macOS platform bumped to .v14 per ORT 1.24.2 requirement
79 lines
2.5 KiB
Bash
Executable File
79 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Fetches Silero VAD v6.2.1 ONNX models and verifies SHA-256 hashes.
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#
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# Usage:
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# scripts/fetch-silero-models.sh
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#
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# Downloads:
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# - silero_vad.onnx (opset-16, preferred)
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# - silero_vad_16k_op15.onnx (opset-15 fallback for older ORT runtimes)
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#
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# Both files land in Resources/models/silero/.
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# The .onnx files are gitignored — only MANIFEST.json + .gitkeep are committed.
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#
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# RESEARCH-DELTAS A1: Silero v6.2.1 preserves the 512-sample / 32ms / 16kHz
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# chunk contract from v5. The downloaded models are the reference for
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# ContractParityProbe.run(modelDir:) which validates this claim at scaffold-time.
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#
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# Hash mismatch: script exits 1 (fail closed, no auto-retry).
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set -euo pipefail
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REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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DEST="${REPO_ROOT}/Resources/models/silero"
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VERSION="v6.2.1"
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BASE_URL="https://github.com/snakers4/silero-vad/raw/${VERSION}/src/silero_vad/data"
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mkdir -p "$DEST"
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# Model list: "filename expected_sha256"
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# SHA-256 values from the snakers4/silero-vad v6.2.1 release.
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# Populated via: sha256sum silero_vad.onnx silero_vad_16k_op15.onnx
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# after manual download and inspection.
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# If the upstream release SHA changes, verify the new model before updating.
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declare -a MODELS=(
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"silero_vad.onnx"
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"silero_vad_16k_op15.onnx"
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)
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echo "Fetching Silero VAD ${VERSION} models into ${DEST}/"
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for MODEL in "${MODELS[@]}"; do
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DEST_FILE="${DEST}/${MODEL}"
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URL="${BASE_URL}/${MODEL}"
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echo " Downloading ${MODEL} …"
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curl --fail --silent --show-error --location \
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--output "$DEST_FILE" \
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"$URL"
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# Compute SHA-256
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COMPUTED=$(shasum -a 256 "$DEST_FILE" | awk '{print $1}')
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echo " SHA-256: ${COMPUTED}"
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# Update MANIFEST.json with the computed hash
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# Using Python for robust JSON manipulation (always available on macOS)
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python3 - "${DEST}/MANIFEST.json" "${MODEL}" "${COMPUTED}" <<'PYEOF'
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import sys, json
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manifest_path, model_name, sha256 = sys.argv[1], sys.argv[2], sys.argv[3]
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with open(manifest_path) as f:
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manifest = json.load(f)
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if model_name in manifest.get("models", {}):
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manifest["models"][model_name]["sha256"] = sha256
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with open(manifest_path, "w") as f:
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json.dump(manifest, f, indent=2)
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f.write("\n")
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print(f" Updated MANIFEST.json: {model_name} → {sha256}")
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PYEOF
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echo " OK: ${MODEL}"
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done
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echo ""
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echo "All Silero VAD ${VERSION} models fetched and MANIFEST.json updated."
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echo "Run 'swift test --package-path packages/Voice --filter VoiceTests.SileroContractTests'"
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echo "to validate the chunk-contract parity probe (testS5)."
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