A vocal training app that measures your singing voice
Suede Sing
Your voice has a signature. Suede Sing reads it — range, register transitions, breath support, resonance, vibrato — every session, on-device. The result is your TonePrint, and a practice plan built from it.
Start here in your browser — no install required. The iPhone companion is optional when you want deeper on-device voice analysis.
On-device analysis·No signup for the web studio·Famous singers' ranges
Two ways in, depending on where you're starting
Everything below is free and open right now. These are just the two orders that waste the least time.
Start with what your voice already does
You don't need to know your voice type, read music, or own anything but a microphone. Three rooms in this order answer the questions beginners actually arrive with.
- Test your rangeTwo minutes. You get your lowest and highest notes and the voice type they suggest.
- Sing a guided warmupFollow a short pattern and get scored as you go. Quiet and easy on purpose.
- Watch your pitch liveSee the note you're singing against the note you meant — which is how off-key becomes fixable.
Fifteen minutes in, you know your range, your voice type, and whether you tend to sit under the note.
Go straight to what's actually limiting you
The interesting numbers aren't the extremes. They're where tone drifts on a held note, which intervals you round off, and what the voice does through the passaggio.
- Hunt the driftSustain long notes and watch for a slow sag — usually support showing up as a pitch problem.
- Find your weak intervalsMost trained ears have a distinct slippery set. Drill those instead of the whole twelve.
- Change one thing and A/B itSame phrase, one variable, back to back. The comparison that shows whether a change helped.
Then let the coach keep score: Pro charts per-note accuracy and range history, and plans tomorrow around your weak notes.
Everything a practice session needs, one tab over
No install required, no signup, no ads. Open any room and sing — the browser studio does live pitch feedback, range testing, warmups, ear training, breath work and song practice.
Keep the browser studio. Add deeper analysis on iPhone.
The web studio gives you live pitch, range and guided practice, free with no install required. If you want more detail, the optional iPhone companion adds an analysis layer: every sustained note becomes a row of objective measurements, and the result is your TonePrint.
Start a session
Hear it, sing it back
Track the work
- H1−H2 differential
- The amplitude gap between the first two harmonics of a sustained note. Near zero reads as chest voice; +6 dB or more reads as falsetto.
- Passaggio mapping
- Where your voice changes mechanism, found by sweeping pitch and watching that differential invert — entry and exit frequency, both reported.
- Spectral tilt
- How fast harmonic energy falls away across H1–H4, in dB per octave. A steeper slope means a lighter, more falsetto-like source.
- Cepstral peak prominence
- A standard clinical measure of how periodic a tone is. Higher values track with clearer, less breathy phonation.
Analysis runs on the phone. What used to need a sound booth and a Praat script now runs in the background of a session you already wanted to record.
The whole toolkit, without the paywall
Most trainers do a few of these things, behind a subscription or an install requirement. Suede Sing does all of them, free, on the web.
Competitor rows rechecked August 2026 against vendor sites and app listings. ～ = partial, limited, video-only, or unclear from public info.
Three steps, no setup
- 01
Enable your mic
Grant mic access once. Audio is analyzed on your device and never leaves it.
- 02
Sing the guided exercises
Follow the note lanes in warmups, ear training, and songs. Scoring is instant.
- 03
Watch your numbers grow
Range, accuracy, and streaks build session by session on your progress page.
The coach on top of the studio
Practice in the studio without paying. Pro adds a coach that remembers every session — adaptive daily plans, per-note accuracy, your range charted over months, and the full songbook.
- A practice plan that rebuilds itself around your weak notes
- Range growth and accuracy trends, week over week
- Pitch analysis on every recorded take
Cancel in one click·No account needed·The studio stays free
Your voice stays yours. All audio analysis runs on this device — nothing is recorded to a server, uploaded, or tied to an account.
On-device analysis·Nothing uploaded·No account
Your mic is the only equipment
Open the studio, sing one warmup, and see your pitch on screen in under a minute.
Ready for the coach? See Suede Pro