Vocal Resonance Analyzer
Sing a sustained vowel and see your voice’s spectral balance — how energy spreads from warmth to air — its brightness (spectral centroid), and the strength of the “ring” (singer’s formant, ~2.5–3.4 kHz) that helps a voice carry.
ℹ Resonance “placement” (chest, head, nasal) describes sensations, not measurable locations. This tool reports your spectral balance, centroid, and ring — acoustic facts that correlate with perceived brightness and projection. True nasality needs a nasometer (separate oral and nasal mics) and can’t be measured from one microphone. The picture also depends on your mic and room. Use it as a brightness/ring guide, not a clinical or anatomical readout. Your mic is analyzed live and never recorded or uploaded.
Sing a steady vowel…
Bars show the share of energy in each band of your rolling average spectrum (smoothed over ~1 second; 0 voiced frames seen). Press Reset average to start fresh on a new vowel.
How It Works
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 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, projecting voice shows a clear ring bump.
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.