This is to practice the difference between the three types of onset, it will also help to reduce breathiness.
This exercise is best done quietly and gently!
Sing on a short open vowel (probably ‘ee’) and repeat it three or four times.
1)Firstly sing ‘hee’ ‘hee’ ‘hee’. This is the breathy onset.
2)Then sing an ‘ee’ vowel with a glottal click – this requires a feeling of closing the throat before allowing the sound to burst through. Now try and make the click as light as you can on the repeated vowel.
3)Lastly, sing the ‘ee’ vowel as if you were starting it with a silent ‘h’. The onset will be clean, not breathy and not clicked.
**Video Example coming soon!**
http://www.jenevorawilliams.com/wp-content/uploads/2012/10/Vocal-exercises1.pdf