Technically it's a rendition of white noise (“Ceci n’est pas une pipe,”). White ... | Hacker News

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femto on Nov 29, 2022 | parent | context | favorite | on: Obsolete Sounds: collection of disappearing sounds...

Technically it's a rendition of white noise (“Ceci n’est pas une pipe,”). White noise is random, whilst a recording is predictable.

There is also a reasonable chance the rendition is a simulation based on a pseudorandom generator.

lozf on Nov 30, 2022 [–]

Less predictable than a recording, - of course you can add a better source of entropy too ;)

    ffmpeg -f rawvideo -video_size 1280x720 -pixel_format yuv420p -framerate 25 \
    -i /dev/urandom -ar 48000 -ac 2 -f s16le -i /dev/urandom -codec:a copy \
    -vf hue=s=0 -f matroska - | ffplay -

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