Music Tech- Nature of Audio 0.0 / 5 ? Music Technologynature of audioA2/A-levelAQA Created by: Hayden BrockCreated on: 02-02-18 09:46 When molecules move more tightly together what is it called Compression 1 of 11 When molecules move further away from each other what is it called? Rarefaction 2 of 11 What is the name for the main note you hear when one is played? The fundamental note 3 of 11 what are the other quieter notes that exist in measurable intervals: halves, thirds, quarters called? Harmonics 4 of 11 Electronic sound waves are the result of? variations in electrical current 5 of 11 What is the path of producing electronic sound from an Acoustic Capture? air pressure variations –> mechanical movement of diaphragm in mic –> conversion to magnetic energy –> conversion to electrical energy 6 of 11 What is the path of producing electronic sound from an Electronic Production? electrical energy –>conversion to magnetic energy –> mechanical movement of speaker cone –> air pressure variations heard by us as sound 7 of 11 What is the name and description of how sound is stored in computers? Binary code- series of on-off voltage commands that computers understand 8 of 11 How were waveforms represented before the digital age? by physical grooves cut in shellac or vinyl records and then magnetic imprints on ferric oxide dust on plastic reel-to-reel tape 9 of 11 What is a sample period? distance between sampling points 10 of 11 How is digital music made? multiple samples of an analogue waveform and encoding this information into binary language 11 of 11
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