Diapason

Diapason is a free vocal range app for singers. It helps you explore your voice in real time, detect your comfortable range, view detected extremes, and compare your voice before and after warm-up.

The app is designed for people who want a focused, privacy-friendly tool for voice analysis without ads, subscriptions, or unnecessary clutter.

What you can do with Diapason:
• Test your voice in real time using your microphone
• Detect your comfortable range for the current session
• View detected low and high extremes
• Compare before and after warm-up sessions
• Review saved session history
• Observe pitch behavior in real time

Diapason is useful if you want to:
• Explore your vocal range
• Understand the difference between comfortable range and edge notes
• See how warm-up affects your session
• Track changes across multiple sessions
• Use a simple and practical voice analysis tool

Free and privacy-friendly:
• No ads
• No subscription
• Microphone access is used only for live voice analysis
• Audio is processed in memory in real time
• The app does not store or upload your voice recordings

Important:
• Results are based on the current session and microphone input quality
• Comfortable range and detected extremes are session-based estimates
• The app does not provide medical, professional, or vocal classification advice
• Microphone permission is required for core functionality

Diapason is built as a practical voice analysis tool for singers: simple, focused, private, and free.

Recent changes:
• New guided range test: four short exercises, under a minute, the same every time, so your results can be compared week to week.
• Results now show your voice family and the voice types worth exploring, with a chart of your range against each family.
• If a recording sounds like the other voice group, Diapason asks before saving it.
• The warm-up comparison now runs the range test before and after.
• Fewer recordings cut short, and a startup crash fixed on some phones.