Adam & Weast test results

Experiments can be setup to prove something, to disprove something or to find out something.A trumpet professor at Indiana U, Bill Adam, did some experiments a few years ago with an air gun. He stretched a piece of leather and secured it very tightly over the mouthpiece of a trumpet. He then poked a tiny hole in the center which serves as the aperture. Then he used a compressor which blows highly accelerated air across the hole in the leather. He said it produced an extremely loud and high note, much like an air horn. He concluded that the sound produced by a trumpet is the result of sympathetic vibrations that are setup in the tubing. The more the air is accelerated the easier it should be to produce high notes. Mr. Adam did a great deal for trumpet playing but he was not using good scientific principles. Mr. Adam […]

Continue reading