Frequently asked questions

Do you have any questions? We have got you covered.

Is the analysis 100% local?

Yes. BPM, key/Camelot, and mood analysis run fully in your browser via WebAssembly. Audio never leaves your device unless you choose to export results.

Which formats and lengths are supported?

Common formats like WAV/MP3/OGG/FLAC work. Longer files are trimmed for speed (e.g., 30s window) to avoid browser slowdowns.

How accurate are BPM and key results?

We use Essentia-derived algorithms with half/double BPM correction and Camelot mapping. Very noisy or live recordings may need a rerun.

What do energy, danceability, and happiness mean?

They're signal-based mood scores combining loudness, rhythm stability, and tempo proximity to dance-friendly ranges.

Can I batch process multiple files?

Yes. Drag in folders or multiple tracks in batch mode and export the results table. Paid tiers accelerate batch throughput.