Nature of Audio 0.0 / 5 ? Music TechnologyNature of AudioA2/A-levelEdexcel Created by: CameronDSCreated on: 30-01-18 15:48 What is sound at a molecular level? When an object moves in a medium, in our case – usually air, molecules move causing them to squash together and move apart 1 of 9 What is compression? Where the molecules move more tightly together 2 of 9 What is rarefaction? Where the molecules have move further apart 3 of 9 What is the fundamental note? The main note you hear and is the perceived pitch 4 of 9 What are harmonics? The other quieter notes that are measured in halve, thirds and quaters 5 of 9 What happens when you add harmonics to the fundamental note? A difference in timbre is heard 6 of 9 What are electronic sound waves a result of? Variations in electrical current 7 of 9 What is the process of acoustic capture? air pressure variations – mechanical movement of diaphragm in mic – conversion to magnetic energy – conversion to electrical energy 8 of 9 What is the process of electronic production? electrical energy – conversion to magnetic energy – mechanical movement of speaker cone – air pressure variations heard by us as sound 9 of 9
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