Today
Morning
Within 10 minutes of waking, before you check your phone.
Evening
In bed, lights off, last thing before sleep.
Members
Enter your access code.
The code arrives by email after payment. It looks like UV-4K7P and it opens the programme on this device.
No code yet?
A private voice coach in the US charges $150–$300 per hour. Even the expert tier is less than one hour with a live coach — and it runs for a month.
You'll get your access code by email right after payment.
Access confirmed
Two questions, then we measure.
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1
Which reference bands should we compare you against?
This picks the norms your number is read against, and the pool your acoustic twin is drawn from. It changes nothing about the measurement itself.
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2
What should we call you? Optional
Only used to put a name on your Voice Passport. It stays on this device.
Pick a reference band to continue.
Session 01 / Baseline
Read this out loud.
This one recording does three jobs: it sets your baseline number, it is the material your personal A/B mix is built from, and on day 30 you read it again so the two are comparable. Read at your normal speaking pace. Don't perform it, and don't push your voice down.
Recording
00:60
Somewhere quiet. 30 to 60 seconds — you can stop once you pass 30.
Voice Passport
Measured by
YIN · classic DSP
no AI guessing
Your fundamental frequency
000Hz
Working range — —
Your archetype
Where your voice actually sits
YOU
70
85
110
165
250
400 Hz
Adult male 85–165 Adult female 165–250 Child 250–400 Your own range
What this means
Your next 30 days
| Days 1–7Exposure | Your personal A/B mix, twice a day, 2–3 minutes — once within 10 minutes of waking, once in bed before sleep. Headphones, eyes closed. Nothing else to do. |
| Days 8–14Anchoring | Same track, plus the chest anchor: after each of your own segments, repeat the phrase aloud with a palm flat on your sternum. Sound in the ears + vibration in the chest = one signal. |
| Days 15–21Variation | Alternate the order and let the track surprise you, so your brain never stops responding to it. Re-measurements on days 7, 14 and 21 track what is moving. |
| Days 22–30Proof | Shadowing — speak along with your own track. Day 30: new recording, second measurement, and your before / after cut. |
Your tier includes four weekly 60-second expert reviews, on days 7, 14, 21 and 28.
Measurement: YIN pitch tracking, 60–400 Hz search range, median and 10th–90th percentile over voiced frames, computed in your own browser. Reference voices are public-domain recordings matched to you by frequency profile only. This is a perception-training programme, not a medical service — it does not diagnose or treat voice disorders.
CONFIDENTIALArtifact 02 / Acoustic twin
Your reference voice.
Out of the public-domain library, this is the recording whose fundamental frequency sits closest to yours. It is not a voice you should imitate — it is the proof that your frequency is a normal, working, adult broadcast frequency. Your mix alternates five seconds of this voice with five seconds of your own.
- Reference F0
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- Your F0
- —
- Difference
- —
- Source
- Public domain
Built here, in this tab. Nothing is uploaded.
Artifact 03 / Your personal track
Building your mix.
- Length
- —
- Segments
- —
- Seam
- 100 ms equal-power
- Stored
- In this browser
Day 1 of 30
- Sessions done
- 0 / 60
- Streak
- 0 days
- Baseline
- —
- Latest
- —
Checkpoint
Day 1
Day 30
Expert tier
Weekly Expert Review
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