The sounds of when internet used to be such a wonderful place.
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Dial Up Modem Handshake Sound - Spectrogram
https://www.youtube.com/watch?v=vvr9AMWEU-c
Want to know what all of the noises are? See this: http://i.imgur.com/5Dq6K2U.pngizotope ozone 5 - 8192 FFT size, 93.75% overlap.