*QUANTA* —> *SPECTRUMS*
(“taste the rainbow!”)
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*in digital recording, ‘audio signals’ picked up by a ‘microphone’ (or other ‘transducer’ or ‘video signals’ picked up by a ‘camera’ (or similar device) are converted into a ‘stream’ of ‘discrete numbers’, representing the changes over time in air pressure for audio, and chroma and luminance values for video, then recorded to a ‘storage device’*
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(to play back a digital sound recording, the numbers are retrieved and converted back into their original analog waveforms so that they can be heard through a ‘loudspeaker’)
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(to play back a digital video recording, the numbers are retrieved and converted back into their original analog waveforms so that they can be viewed on a video monitor, television or other display)
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