
Measure your comfortable span and get a safe starting point for training.
A 3-2-1 countdown will tell you exactly when to start singing.
Start comfortably, then glide gently to your lowest comfortable note.
Tap Lock In when you find it, or stop singing. Then repeat for your highest comfortable note.
Requires microphone. Use a quiet room for best results.
If singing hurts, stop. Do not push into pain at the top or bottom of your range: strain is a stop signal, not a technique, and a smaller honest result beats a bigger forced one. Pain or hoarseness that lasts more than a day is a reason to see an ENT or a speech-language pathologist who specializes in voice, not to test again harder.