fixtures.py synthesises audio aimed at the metric code's branches: shorter
than each window, digital silence, a passage below the relative gate,
96 kHz, every PCM layout the direct WAV/AIFF reader handles, and (with
ffmpeg) MP3/Vorbis/Opus/AAC. reference.py loads each file as the desktop
app does and saves the exact mono signal plus every compute() result;
parity.mjs runs web/dsp.js on that same signal and compares every field.
Current result: 323/323 fields in tolerance; float64 paths agree to ~1e-12,
float32 paths (true peak, spectrogram dB, RMS) to ~1e-6.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015UXA39Sh9coAx4FhRkd8R2
mikkeli
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