Analogue recorders like the Nagra used 1/4" tape and the mini Nagra (cassette recorders) used 1/8" tape.
At the school big productions use Fastex Recorders and smaller productions tend to use Zoom.
Audio used to be measured in CPS but its now measured in Hz.
Audio, like film, in digital format can be copied multiple times without a degrading effect appearing in the material. Analogue tape re used caused a large amount of hiss. Dolby along and did their best to erase the hiss from tape.
Digital sampling frequency -
44.1 khz is CD quality
48. khz is a higher quality used for film.
The mp3 is the most common audio compression but there are others like wma. and AAC.
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