PhonaLab

Free research-grade voice analysis for speech-language pathologists.

Voice analysis tools cost $1,000–$5,000. PhonaLab makes them free. Built by a voice biomechanics researcher with 30+ years of experience, it runs in any browser with no software to install. It offers six validated tools: Voice Analyzer, Pitch Visualizer, AVQI & ABI Calculator, MPT & DSI Calculator, Spectrogram Generator, and Spectral Analysis. Already used by 400+ clinicians in 60+ countries.

A startup from Brasilia, Brazil that is founded by Jorge C Lucero.

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Formant Analysis //
2026-03-18
Spectrogram //
2026-03-18
Spectral Analysis //
2026-03-18

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