01 / SOUND
See the overtones
The spectrum shows which harmonics you bring out. Change your mouth shape and watch how the sound changes.
- Spectrum and keyboard on the same scale
- Listen to a selected harmonic
- Practice holding an overtone
OBERTON LAB / SOUND LAB
Hear more.
Play with precision.
See the overtones, feel the rhythm and find your jaw harp’s fundamental. Tools for focused practice — right in your browser.
No installation needed · On computers and phones
Microphone audio is processed
on your device
on your device
OBERTON LABDEMO
SELECTED OVERTONE
8G5784 Hz
Jaw harp fundamentalG2 98 Hz
G44G♯4A4A♯4B45C5C♯5D56D♯5E5F57F♯5G58G♯5A59A♯5B510C6C♯611D612D♯613E6F614F♯615G616
Choose a harmonic
STEADY RHYTHM EXAMPLE80 bpmTime signature 4/4 · Playing eighth notes
1234
Metronome Your strikes
Compare your strikes with the beat.
The lab measures timing accuracy and volume consistency.
JAW HARP FUNDAMENTALG2G · 98 Hz
−50−250+25+50
Note, frequency and deviation in cents.
The fundamental is the starting point for working with overtones.
Illustration · synthesized sound · no microphone
Overtones see the notesRhythm check your accuracyFundamental get to know your instrument
THREE TOOLS · ONE LAB
Understand what you play
From your first sound to focused
work on your technique.
02 / RHYTHM
Play more steadily
The metronome sets the pulse, and the microphone helps check how closely you follow it.
- Eighth notes, triplets and sixteenth notes
- Strike timing and volume accuracy
- Device latency calibration
03 / PITCH
Find the fundamental
Play a few steady strikes: the tuner identifies the fundamental frequency and shows the nearest note.
- Note and frequency in hertz
- Deviation in cents
- Adjustable A4 reference
PRACTICE YOU CAN RETURN TO
Listen to yourself.
Notice your progress.
Record an exercise, listen back and explore its overtones. Save WAV files to revisit successful passages and tricky moments.
Start practicingRecord and analyze
Record your playing with the microphone, or open WAV files for playback and analysis.
Practice history
Sign in to your Oberton Pro account: practice time and exercise results help you keep track of your sessions.
My accountLessons and independent practice
Use the lab at home and in lessons. At the Oberton Pro school, we help connect the graphs with your playing technique.
About our lessonsYOUR FIRST SOUND
Open. Allow. Play.
- 01
Choose a tool
“Overtones” — visualize your sound,
“Metronome” — work on your rhythm,
“Tuner” — find the fundamental. - 02
Enable the microphone
Allow microphone access in your browser. To assess rhythm, run the calibration: follow the prompt and do not play yet.
- 03
Play a few strikes
Keep the jaw harp at a steady distance from the microphone. Start with an even sound, then try changing your mouth shape.
No jaw harp handy? The lab has a demo mode.
ALWAYS AT HAND
One icon.
Time to play again.
The Android app is available on Google Play and RuStore. Install it for quick access to your practice, or add the lab to your home screen from the browser. All tools are also available online.
Open without installing
On phones and computers. Core tools are available without signing up.
GOOD TO KNOW
Before you start
Do I need an account?
You can open the lab and use its tools without signing in. An account lets you save your practice history and view your results across devices.
Does the lab record my audio?
Live audio is analyzed on your device. Recording starts only when you press the record button. You can download the WAV file and save it locally. Your account’s practice history contains exercise results, not audio recordings. More about privacy.
What if the microphone does not work?
Allow microphone access in your browser’s site settings. Check that the correct microphone is selected and available. If you opened the link in a messaging app, try opening it in an external browser.
Do harmonics have to match notes exactly?
No. A jaw harp has a natural harmonic series, whose frequencies may differ from equal-tempered notes. The notes on the graph help you navigate the melody. Changing your mouth shape brings out a harmonic; it does not tune its frequency.
Do I need internet to practice?
The first launch and updates require internet. Once loaded, the lab can use the microphone offline if your browser has saved its files. Signing in and sending results require internet.
OBERTON LAB