The monitor makes pitch history the main output. A scrolling Canvas trace keeps recent voiced notes visible, helping you inspect sustained-note steadiness, glides, vibrato shape and interval movement rather than only the latest pitch.
A practice timeline, not a single snapshot
Unvoiced frames create a gap instead of a fabricated note. The trace uses a fixed-size ring buffer, so it stays bounded during long practice sessions and does not allocate a growing history on every animation frame.
Use the instrument
- Allow the microphone. Start from the instrument and approve microphone access. Audio is analysed on this device and is never uploaded.
- Sing a steady tone. Use a comfortable vowel and hold the note. The detector waits for a clear, stable signal instead of counting breaths or squeaks.
- Follow the live feedback. Read the note, frequency, cents and visual shape together. Range mode guides you low then high; the other modes focus on one practice job.
- Stop when you are finished. Stopping releases the microphone immediately. Range results can be saved locally or shared as a generated image without an account.
Frequently asked questions
Does this vocal app record or upload my voice?
No. The microphone signal is analysed inside your browser and is not recorded, uploaded or sent to an API. The app only stores settings and completed range summaries locally on your device, and you can clear those at any time.
Why does the detector ignore some sounds?
That is intentional. Breathing, handling noise and very brief squeaks are unreliable pitch evidence, so the detector requires a clear signal and the range test requires a note to be sustained before it can change your measured low or high note.
Will it work on a phone?
Yes, in a modern mobile browser with microphone permission. On iPhone and iPad, reference tones may be muted by the hardware silent switch even while microphone detection works, so every audio cue is paired with a visible cue.
What can a vocal pitch graph tell me?
It can show whether a held pitch drifts, how smoothly you slide between notes and how consistently you return to a target. It cannot diagnose vocal health or replace a teacher, and natural vibrato should appear as a small regular movement rather than a perfectly flat line.