Audio Peak Marker Exporter
Find decoded sample peaks above an explicit threshold with a minimum time gap and export marker evidence as CSV or JSON.
What this tool does
Peak markers are based on decoded sample peaks, not inter-sample true peak and not semantic transient classification. Use them to locate strong peaks for review.
How it works
Audio is decoded with the browser Web Audio API. Processing is deterministic and local in the browser. Generated audio exports are 16-bit PCM WAV; marker exports are text sidecars.
Limitations
Browser codec support varies. Files that cannot be decoded are rejected. This utility does not claim mastering, forensic analysis, certified metering, or restoration beyond its stated operation.
Privacy
Processing stays in your browser for this tool. The selected file is not intentionally uploaded by this page.
FAQ
Does it change the original file? No. It creates a new export. Does metadata carry over? WAV processing exports do not preserve source metadata.