🎙️ VRN Live Analyzer

How the Live Analyzer Works

The Live Analyzer turns your microphone into a vocal mirror. As you sing, it samples the incoming audio many times per second, estimates the fundamental frequency of your voice using autocorrelation, and converts that frequency into a musical note and an estimated register. At the same time it examines the shape of your sound — where the energy sits across the frequency spectrum — and maps that onto Vocal Resonance Notation, so you can see which resonance zones are carrying your tone right now: chest [C], head [H], nasal/mask [N], oral [O], pharyngeal [P], or low body [L].

Choosing Your Input Source

Three input modes let you analyze almost any voice, not just your own:

• Live Singing — your microphone analyzes your own voice in real time. This is the mode to use for practice.
• Room / External — picks up singing from a radio, TV, speaker, or another person in the room. Useful for analyzing a recording playing nearby or coaching someone else.
• Browser Tab — captures audio directly from a YouTube, Spotify, or other browser tab, so you can study how a professional vocalist distributes their resonance.

Set your voice type (Bass through Soprano, or Auto-Detect) so the register estimate is calibrated to your range. If detection looks jumpy, raise the Sensitivity for quiet or distant sources, turn on Noise Suppression in a noisy room, and enable Echo Cancellation unless you are wearing headphones.

Reading the Notation

Watch the VRN readout shift as you move through your range. On low, grounded notes you should see chest [C] dominate; as you ascend through the passaggio the balance tips toward head [H] and mask [N]. If the notation freezes or reads “silence,” you are either too quiet for the current sensitivity setting or singing breathily enough that the analyzer cannot lock onto a clear pitch — press more firmly into a flow phonation and it will catch.

Getting the Most From It

Sing a slow five-note scale and watch the resonance map redistribute on each step. That single exercise teaches you, visually, where your own gear shifts happen — the exact information a voice teacher spends weeks pointing at. Pair this tool with the Learn VRN lessons to connect what you see here with what you should feel.