GLOBAL VOCAL TRAINING · SEOUL
We measure what others just shout.
Like a clinic diagnosing a patient, an extreme-vocal specialist reads your voice and prescribes tailored modules every week.
Record as often as you practise — your coach sees the process, not just the final take.
NO CARD REQUIRED
THE PROBLEM
On your own, you can't cover every case
Every rough sound needs a different technique and a safe path. Practising from scattered clips ties you to time and place — and pushes you to hurt your throat with the wrong effort.
NO SYSTEM
Patchwork clips
Scattered tips per case — no way to know what fits your voice.
INJURY RISK
Wrong effort, hurt throat
Push without feedback and the cords give out first.
CAN'T SUSTAIN
Tied to time & place
Fixed lesson slots break your consistency.
HOW IT WORKS
Works like a clinic
A four-step cycle, every week
STEP 01
Sign up + diagnosis
Open the free diagnostic module instantly and submit your video.
STEP 02
Diagnosis → prescription
A trainer reads your voice and proposes 3–5 tailored modules.
STEP 03
Practise · log it daily
Upload a take whenever you practise. The latest one is what gets reviewed.
STEP 04
Feedback + next Rx
Wednesday night, per-module notes arrive with next week's prescription.
THE PRACTICE LOG
Not a weekly exam. A record of how you got there.
Most services want one polished take a week — so you stop practising and start performing. Here every attempt is kept and dated, and your trainer can trace exactly where it went wrong.
- No streaks, no targets — a light week is still a week.
- 90 seconds per clip — short enough to actually do it.
WHY DVL
Why DVL
A 172-module system for every case
From screaming to support and bridging — practice drills and concept modules, organized.
On your time, in your space
Async prescriptions mean no fixed lesson slots. Practise by video, upload anytime.
DESKTOPMOBILE24/7
Diagnosed first, then prescribed
Not a one-size course — your voice is diagnosed and prescribed weekly.
Built to last, injury-free
Grip and support before force — rough sound without wrecking your throat.
CURRICULUM · 172 MODULES
Every technique you need
- Screaming
- False-cord
- Fry & growl
- Mix voice
- Support & breath
- Bridging
- Distortion theory
FAQ
Frequently asked
- Can total beginners start?
- Yes. The free diagnosis reads where you are, then prescribes modules at your level.
- Do I have to upload every day?
- No. Upload as often as you practise — once a week or five times. There are no streaks and nothing is marked as missed.
- Are there fixed lesson times?
- No. It's async — practise whenever and just upload before the weekly deadline.
- Which languages are supported?
- Korean and English — prescriptions and feedback in your chosen language.
START NOW
Get your voice diagnosed today
The free diagnosis starts instantly — no card required.
Start free diagnosis