JYUTONE 粵調
Notes

Technical notes

Jyutping primerHow a Jyutping syllable is splitSpeech acousticsReading waveform, spectrum, spectrogramGating and denoisingWhat gating and spectral masks can do
PrivacySupport
EN简繁

Home/Support

We usually reply within 7 business days

Support

Need help? Email [email protected]

FAQ

Microphone: practice needs mic access to record and score. Enable it in system Settings.

Scoring requires an internet connection because assessment requests are processed by Jyutone servers. Make sure you are using the public release of the app rather than an internal test build.

What’s free: today’s Set 1 and your first level test (assessments have a daily cap). Sound-library drills, Stretch, retakes, and extra assessments need Jyutone+.

Subscriptions: on iOS, manage in Settings → Apple ID → Subscriptions; on Android, in Google Play → Payments & subscriptions → Subscriptions. After reinstall or a new device, use Restore purchases in the app.

When you write to us

Include device model and OS version, a short description and screenshots, and if billing-related the copyable device ID from the app (never share your Apple ID or Google account password).

© 2026 Jyutone
HomeJyutping primerSpeech acousticsGating and denoisingPrivacySupport