VOICE SPECTRUM ANALYSIS

Put your own voice in. Watch it become its pattern. Hear it returned to you — your voice, clear as day; your tones; and a dial to tune with.
A Jelkal work in progress. Your voice never leaves your telephone: every measurement happens right here, on this device.

1 · YOUR VOICE, IN

No voice yet. Record a few seconds — a verse, your name, anything — or load a voice note.
0.0stap or drag the wave to move through your voice

2 · THE EVALUATION

low frequenciesyour voice, frequency by frequency, across timehigh
—pitch centre of your voice
—nearest note
—pitch range
—strongest frequency
—length of your voice

3 · YOUR VOICE, RETURNED

Three reflections of the same voice: itself, its tones, and the dial.

4 · THE DIAL — TUNE

432 Hz
In the audible range — you can hear this
1 Hz · below hearing20 Hzaudible20,000 Hz24,000 Hz · above
Volume

Voice Spectrum Analysis (VSA) is an exploratory instrument for meeting your own voice as pattern and tone. It is not a medical device, and it diagnoses or treats nothing — it listens, it measures, it reflects.
Built October 23, 2026, from the test trials of October 22–23: voice → pattern → voice → words, and voice → tones. All rights belong to Jelah (Jelkal). Version 1.