Unit 73 - Sound
Unit 73 - Sound Unit 73 - Sound: Aircon white noise ocean Sounds are made from sine waves. The medium is the air. Wave length = from one starting point to another same point Wave length is measured in frequency/Hz (how frequent it occurs) Amplitude is measured in Lambda Human's can hear from 20 Hz - 20 KHz Waves lengths = how many times you hear it per second, if you hear something 500 times in a second then its 500Hz Middle 'C' Hz = 261Hz Violin Piano Timbre = Tone Colour (quality of the sound) Vibrations of harmonics at the same time producing the pitch. Timbre ( tone quality , color) is what differentiates two sounds in the same frequency (same note ). For example, the Do (C) note played in a guitar has a really different sound of a Do (C) when played in keyboard or flute. This means that these instruments have different timbres. Loudness = level of sound. Measured in dBs. Voice = 5...
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