Voice Gender Analyzer
This free voice gender analyzer is a supportive feedback tool for voice training. Speak naturally and see two acoustic cues that shape how a voice is perceived — your average pitch (F0) and your resonance (formants) — placed on a masculine↔feminine perceptual spectrum.
ℹ This measures acoustics only. Pitch and resonance are sounds a microphone can measure; gender identity and biological sex are not, and this tool does not and cannot determine them. The result is where your voice’s sound currently sits on a perceptual range built from population averages — many voices fall in the overlap zone, and that is completely normal. It’s designed as encouraging feedback for voice training, including gender-affirming voice work, characterisation, or curiosity. Estimates depend on your mic, room, and how you’re speaking. Your mic is analyzed live and never recorded or uploaded.
Speak naturally…
Based on 0 voiced samples. Pitch and resonance both matter — resonance (formants) is often the harder, more rewarding thing to train. Press Reset to start a fresh measurement.
How It Works
While you speak, the tool tracks two things many listeners use to perceive a voice as more masculine or feminine. The first is fundamental frequency (F0) — your average pitch — found with a YIN pitch detector and reported as the median over your voiced samples (median resists the odd glitch). The second is vocal resonance: the tool runs LPC (Linear Predictive Coding) analysis to estimate your vocal-tract formants and reports the average of the first three (F1, F2, F3). Shorter or more “raised” vocal tracts tend to produce higher formants (a brighter, more “forward” resonance), which listeners associate with feminine-perceived voices; lower formants read as darker, more masculine-perceived. The marker blends both cues (pitch weighted a little more) and shows roughly where your voice’s sound currently sits. To explore formant patterns in more detail — for example, to see how different vowels shift your F1 and F2 — the Vocal Formant Analyzer provides a dedicated real-time F1/F2/F3 display.
For context, adult speaking pitch averages sit around 100–130 Hz for many men and 190–220 Hz for many women, with a large overlap in between — and plenty of people sit happily in that overlap. Research on voice feminization generally suggests that a sustained speaking pitch above roughly 160 Hz combined with higher-frequency resonance (formants) contributes significantly to a feminine-perceived voice, but listeners integrate many other cues too: intonation range, breathiness, articulation, and prosody. Similarly, voice masculinization training focuses less on absolute pitch (which hormone therapy may lower over months) and more on resonance placement and speech patterns. Those are population statistics, not personal targets, and they say nothing about who you are. If you’re training your voice, the most useful thing here is watching the numbers change as you experiment: lift your larynx, brighten your vowels, find a comfortable pitch, and see the marker move. Some trainees also use the Vocal Resonance Analyzer alongside this tool to get a fuller spectral-balance picture of how brightness and ring shift as they adjust their resonating space. Trust your ears and, for gender-affirming work, a qualified speech-language pathologist (SLP) over any single number.