Vocal Biometric Comparator

This tool moves beyond simple listening to conduct a biometric analysis of audio evidence. By generating a "voiceprint" (spectrogram) for two separate recordings, it can provide a quantitative score of their similarity. This helps answer a critical investigative question: "Are these two sounds from the same type of source?"

How to Use the Comparator

1. Upload Audio A: Click "Upload Audio A" to load your first recording. A visual voiceprint (spectrogram) will be generated.
2. Upload Audio B: Click "Upload Audio B" to load your second recording. Its spectrogram will also be generated.
3. Compare: Once both files are loaded, the "Compare" button will activate. Click it to initiate the biometric analysis.
4. Review Score: The tool will provide a "Similarity Score" from 0% to 100%. A higher score indicates a greater likelihood that the two sounds share similar acoustic properties and could originate from the same type of source.

Investigative Use Cases

Cryptozoology: Corroborating Sightings

Imagine you have two separate recordings of an alleged "Sasquatch howl"—one recorded in Washington in 1998, and another from Oregon in 2024. By comparing their spectrograms, you can look for consistent harmonic structures, frequency ranges, and cadence. A high similarity score would be powerful evidence suggesting that two different witnesses, separated by time and distance, recorded the same type of unknown animal.

Paranormal: Analyzing EVPs

During an investigation, you might capture multiple faint EVPs that sound like they could be from the same entity. Use this tool to compare them. If two separate whispers from different parts of a recording show a high biometric similarity, it strengthens the case that you have captured a consistent, anomalous voice rather than two unrelated instances of random noise.