Vocal Resonance Analyzer

While you hold a vowel, the tool builds a rolling average spectrum of your voice (a smoothed picture of roughly the last second) and measures where the energy sits. It splits that spectrum into five bands — Warmth, Body, Mid, Ring and Air — and shows each band’s share. It also computes the spectral centroid (the “centre of mass” of the spectrum, a good proxy for perceived voice brightness) and the strength of the ring: energy in the singer’s-formant region around 2.4–3.4 kHz, where trained voices concentrate energy to cut through an ensemble. A dark, warm voice puts most energy low; a bright voice shows a clear ring bump and higher vocal projection. The singer’s formant is a cluster of the third, fourth, and fifth formants that merge into a single prominent resonance peak when the larynx is low and the pharynx is wide — a technique common to operatic voices and loud-stage performers who need to project over an orchestra without amplification.

Why not “chest vs head” directly? Because those are felt sensations of vibration, not quantities a microphone can locate. What a mic can measure is the resulting spectral balance, and that’s what you see here. Likewise, genuine nasality requires comparing sound from separate oral and nasal microphones (a nasometer); a single mic can’t isolate it. Treat the numbers as an honest acoustic mirror you can A/B against yourself — sing the same note “darker” then “brighter” and watch the bands shift. For vowel-by-vowel formant tracking (F1, F2, F3), the vocal formant frequency analyzer shows the individual resonance peaks that shape vowel identity. To track how well your pitch stays in tune during the same sustained vowels, use the vocal pitch checker alongside this tool.