Precise data, collected over years, allows predictable results..
Voicing -sound improvements - sound coloration
We often describe sound with terms we can associate. A tone can be warm or bright, overtone rich, stuffy, dull, too open, too closed, resistant, hesitant, unstable, muffled, etc. All of these voices are a direct result of the way the air flows through the instrument. Players learn over the years how to control their airspeed. Airspeed control can help when you run into any of these voicing phenomena or are disturbed by the way a particular tone sounds. We also have other options for dealing with voicing.