Music Tech- Nature of Audio

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When molecules move more tightly together what is it called
Compression
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When molecules move further away from each other what is it called?
Rarefaction
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What is the name for the main note you hear when one is played?
The fundamental note
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what are the other quieter notes that exist in measurable intervals: halves, thirds, quarters called?
Harmonics
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Electronic sound waves are the result of?
variations in electrical current
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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
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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
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What is the name and description of how sound is stored in computers?
Binary code- series of on-off voltage commands that computers understand
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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
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What is a sample period?
distance between sampling points
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How is digital music made?
multiple samples of an analogue waveform and encoding this information into binary language
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Other cards in this set

Card 2

Front

Rarefaction

Back

When molecules move further away from each other what is it called?

Card 3

Front

The fundamental note

Back

Preview of the back of card 3

Card 4

Front

Harmonics

Back

Preview of the back of card 4

Card 5

Front

variations in electrical current

Back

Preview of the back of card 5
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