![This is what a dial up modem connection looks like on the spectrogram (DTMF handshake and call). : r/interestingasfuck This is what a dial up modem connection looks like on the spectrogram (DTMF handshake and call). : r/interestingasfuck](https://external-preview.redd.it/U5_P66DkBS5diUU5m2PW83x05G4rZ_v6wCFv_0W6M8s.png?format=pjpg&auto=webp&s=91810cf71de8a83ecedd4ac4833c0d22c1902868)
This is what a dial up modem connection looks like on the spectrogram (DTMF handshake and call). : r/interestingasfuck
![Dial Up Modem Handshake Sound - Spectrogram Do you remember this sound?? | Data visualization tools, Data visualization techniques, Sound Dial Up Modem Handshake Sound - Spectrogram Do you remember this sound?? | Data visualization tools, Data visualization techniques, Sound](https://i.pinimg.com/originals/ef/68/2b/ef682be34b8138430d2907c8504844e8.jpg)
Dial Up Modem Handshake Sound - Spectrogram Do you remember this sound?? | Data visualization tools, Data visualization techniques, Sound
![Stream episode Old Modem Internet Connection Sound Effects by Temmie McArctic podcast | Listen online for free on SoundCloud Stream episode Old Modem Internet Connection Sound Effects by Temmie McArctic podcast | Listen online for free on SoundCloud](https://i1.sndcdn.com/artworks-CFSdZzmAB8eNzbzy-RNMJOA-t500x500.jpg)