Summary: Understanding the basic scientific principles surrounding sound production enhances the well-rounded singer. Frequency is the scientific equivalent to the musical term pitch. Decibel is the scientific measurement for the volume of a frequency. As the frequency increases, the decibel level does as well. Therefore there is no need to use greater energy or force to sing high pitches; the laws of nature make those pitches loud all on their own. The Bernoulli effect states that moving air has less pressure than stationary air. The Venturi effect states that pressure of a flowing substance is inversely related to the size of the opening. Knowledge of these two principles tell us ways in which air and glottal opening affect pressure in the vocal mechanism. Resonance is the "intensification and enriching of a musical tone by supplementary vibration." And if there is more resonant surface area, the greater the decibel level of the tone produced.
Key Terms
beat phenomenon
resonance
sympathetic vibration
Venturi effect
intensity
decibel
Bernoulli effect
frequency
pitch
sound
Key Concepts: A greater understanding of the scientific production of sound is not a primary tool for improving singing, but it is of great benefit to help understand the images singers use to guide them in vocal production.
Making Connections: I'm not sure that I completely understand the Bernoulli effect. And if I do actually understand it, I'm not sure that I understand it's application to singing.
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