"raw" is the raw recorded files, "working copy" has had some very basic enhancement.
The zip files are equivalent to each folder, just packed into a single file for convenience.
Recording: 44.1kHz, 16bit, stereo, input on left channel only (the useless baggage of
the right channel blows out the filesizes)
Working copy is 44.1kHz, 16bit, mono. Files were normalised to -14.9dB after conversion to mono
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