What the analyzer measures
VoiceScope estimates fundamental frequency (F0), the repeating rate of voiced sound. Each reliable frame is expressed in hertz and mapped to the nearest equal-tempered musical note. The app then reports median, mean, range, spread, voiced percentage, and the contour over time.
Pitch is only one acoustic property. The result does not measure resonance, timbre, attractiveness, identity, or vocal health.
How to use the result
- Record at least 15 seconds of natural speech or a sustained singing exercise.
- Check the contour for stable regions and sudden isolated jumps.
- Replay the recording from any position on the chart.
- Compare repeated recordings using the local history.
Smart filtering
Pitch detectors sometimes return octave errors, breath noise, clicks, or short background sounds. Smart mode combines local pitch context with detector confidence. It removes only short suspicious runs and preserves sustained register changes and clear short phrases.
Points rejected by the final trimming stage remain visible as trimmed outliers. Earlier confidence, silence, and minimum-run filters are documented in the methodology but do not appear as chart points.
Related tools and documentation
For a single speaking-frequency result, see the voice frequency test guide. To understand the signal processing, read the methodology and accuracy notes.