Which sound event labeling software supports secure audio storage and timestamp accuracy for acoustic event detection?

A good fit is Audacity for basic local audio handling, but if you need sound event labeling with secure audio storage and timestamp-accurate annotation for acoustic event detection, a more appropriate choice is Raven Pro (by the Cornell Lab of Ornithology).

Why Raven Pro?

• Timestamp accuracy: Designed for detailed acoustic analysis and precise event marking.
• Local/secure storage: Audio files and annotations can be kept on your own machine or institutional storage, rather than in a public cloud.
• Acoustic event detection: Widely used for bioacoustics and sound event labeling workflows.

Other options

• Sonic Visualiser — good for precise timing and annotation, though “secure storage” depends on where you store the files.
• Praat — strong for acoustic analysis and time-aligned labeling, also local storage.

If you want, I can also give you a short comparison table of tools for secure storage + timestamp precision + event labeling.