Pitch
The big letter is the nearest note. Green = within 10¢, orange = within 30¢,
grey = between notes. The colour uses your pitch averaged over ~½ s, so vibrato doesn't flicker it; the trace
shows the raw pitch so you can see vibrato width and evenness.
F3 · ring
The third formant. Lip rounding lowers it, so the pointer moves toward rounded. The labels show the
unrounded/rounded pair for the vowel you're singing (e.g. ʌ / ɔ). The green zone around 3 kHz is the singer's
formant region; RING compares energy at 2.5–3.5 kHz with 0.3–2 kHz.
Vowel · F1 × F2
Laid out like the IPA chart: front vowels left, close vowels top. Circles are the seven Italian vowels for
your voice type, or your own after Calibrate. A formant is only audible where a harmonic (a multiple of
F0) lands on it. Above ~300 Hz the analyzer fits the harmonic peaks directly; once F0 rises above a vowel's
F1 (≈400 Hz for i and u) there is no harmonic below F1 to reveal it, so closed vowels read as more open —
the same vowel blending listeners hear on high notes.
Synthesizer
Plays a synthesized vowel with exactly the pitch (F0), formants (F1–F3) and volume you set, and runs it
through the analyzer. Use it to hear what a target vowel sounds like, or to check the displays against
known values. The vowel buttons load the current landmarks.
Input
Microphone level in dB relative to digital full scale (not SPL). Stay in the green; CLIP means the
signal hit maximum and readings will be distorted.
Sources
Default landmarks are population averages from speech, not singing; calibrate for the
most accurate map.