Voice Pitch Analyzer
Analyze vocal pitch in real time from your microphone. See note names, Hz, cents deviation, stability, and a live pitch curve—free in your browser.
Hold each button and sustain a steady note for 2-3 seconds.
Help Us Improve
—
(—)
Use this vocal range test online to find your vocal range, check your singing range, and get a quick voice type estimate from your lowest and highest notes.
Hold-to-record low and high notes
Press and hold each button while singing a steady pitch for 2-3 seconds.
Live Hz feedback
See real-time frequency updates while recording so you can stabilize your note.
Automatic note detection
Captured frequencies are mapped to musical notes such as C3, A4, and F5.
Vocal range calculator output
Shows semitone distance and octave span between your captured low and high notes.
Voice type test estimate
Compares your range with typical bass, baritone, tenor, alto, mezzo-soprano, and soprano bands.
Browser-only processing
Audio analysis happens locally in your browser without uploading recordings.
Warm up your voice
Do light humming and simple scales before testing to avoid strain.
Record your lowest note
Hold “Record low” and sustain your lowest clear, comfortable note.
Record your highest note
Hold “Record high” and sustain your highest clear note without forcing.
Analyze and review results
Click analyze to see note names, Hz values, range span, and likely voice classification (for example: am I soprano or alto).
Choose a quiet room
Background noise can confuse low-level pitch estimation.
Keep notes steady
Hold each note for at least 2 seconds with stable volume and vowel.
Do not strain extremes
Use your comfortable practical range, not forced edges, for safer training.
Retry if readings look off
If notes jump or invert, reset and re-record both ends of your range.
Use frequency tools together
After this singing range test, compare raw Hz behavior in /frequency-detector or note stability in /voice-pitch-analyzer.
“Vocal range is the range of pitches that a human voice can phonate. A common classification system divides voices into six main types: soprano, mezzo-soprano, alto, tenor, baritone, and bass.”
Vocal range and voice classification: This vocal range test captures your lowest and highest comfortable notes and compares them against typical classification bands (bass through soprano) to give a likely voice type estimate. en.wikipedia.org/wiki/Vocal_range
“Voice types are categories of human singing voices based on pitch range, vocal weight, and timbre. The major female voice types are soprano, mezzo-soprano, and contralto; male types are countertenor, tenor, baritone, and bass.”
Voice types — soprano, alto, tenor, bass: The tool maps detected note spans (e.g., A2 to E5) onto common voice type bands, providing a starting reference for singers exploring their classification. en.wikipedia.org/wiki/Voice_type
“A semitone is the smallest musical interval in Western tonal music, equal to one-twelfth of an octave. On a piano, it is the distance from one key to the next adjacent key.”
Semitone — the smallest interval in Western music: The range span between the lowest and highest detected notes is reported in semitones and octaves, giving singers a measurable metric for tracking vocal development over time. en.wikipedia.org/wiki/Semitone
“The fundamental frequency of a periodic signal determines the perceived pitch. For the human voice, F0 corresponds to the rate of vibration of the vocal folds.”
Fundamental frequency detection for voice: Pitch is extracted from microphone input by identifying the fundamental frequency of voiced frames. The microphone is accessed via getUserMedia, and processing stays entirely in the browser. en.wikipedia.org/wiki/Fundamental_frequency
“An octave is an interval between one musical pitch and another with double or half its frequency. The octave relationship is a natural phenomenon that has been recognized in music throughout history.”
Octave — doubling of frequency: The vocal range span is calculated in both semitones and octaves, helping singers understand their practical range. One octave = 12 semitones = a doubling in frequency. en.wikipedia.org/wiki/Octave