How do I know if my voice is changing?
The usual signs are a speaking voice that sits lower than it did, notes at the top of your range that no longer come, cracks in the middle of your voice where there were none, and a tone that turns husky or breathy for weeks rather than days. In puberty this is normal: a boy's voice drops about an octave, usually somewhere between twelve and sixteen, and a girl's drops a few semitones and may sound breathier for a while. Adult voices change too, more slowly: many women's voices lower after menopause, and many older men's rise a little and thin out. Measuring your lowest and highest notes once a month shows a real change better than memory does. Hoarseness that lasts more than three weeks, pain when you speak, or a change you cannot explain is a reason to see a doctor, not to practise through it.