The detector preserves the raw frequency beside the note name
A letter alone hides register and pitch drift. The page keeps octave, hertz, and cents visible so two readings with the same letter can still be distinguished.
Detection is evidence, not a vocal label
A momentary note does not determine voice type, comfortable range, or technique. It reports the strongest periodic pitch in the current microphone buffer.
Silence stays a missing reading
When the input falls below the calibrated gate, the page waits instead of extending the previous note. That prevents a breath from being presented as a sustained pitch.
Questions
These answers define the detector boundary.
Can it identify several singers at once?
No. The pitch engine is monophonic and expects one dominant periodic sound.
Why can a breathy note disappear?
A weak fundamental or strong noise may not pass the local confidence and level checks.
Does it send microphone audio to a server?
No. Detection runs inside the browser tab.
Sources behind the method
The tool combines published music-theory definitions with formulas exposed directly in its result.
Calculations and microphone analysis run locally in this browser.