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Google is embedding inaudible watermarks right into its AI generated music
(www.theverge.com)
This is a most excellent place for technology news and articles.
That's actually an accurate description of what is happening: an audio file turned into a 2d image with the x axis being time, the y axis being frequency and color being amplitude.
That's literally a spectrograph
Spectrogram*
Your mom's literally a spectrograph.
I know, it’s like the old windows media player visualisations.