MSP 2751 Study Guide - Valdemar Poulsen, Harry Nyquist, Magnetic Storage
11 Apr 2014
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Document Summary
The average operating level of 0vu represents good levels for analog recording. Digital is -18 avg the baseling sampling rate for high fidelity digital audio is 44. 1khz. Each cycle of a sound wave is made up of 2 phases, compression push+, and refection pull- Cps is expressed by frequency by the number of times per second. cps=hz. Lower bass -20hz to 300hz, midrange - 300hz to 5,000hz treble 5,000hz to 20khz. 1,130 feet per second is the speed of sound. Tonal sensitivity is the frequency response refers to a device or system. The equal loudness principle states that the human ear is equally sensitive to midrange! The dynamic range is the range between the quietist and the loudest sound that a sound source can produce without distortion. Combing two wave that are 180 degrees out of phase with result in phase cancellation. Direct narration describes what is being seen or hear. In spoken sound, meaning can be conveyed verbally.
