There's this Bell Labs video where Lorinda Cherry demonstrates it (shortly after 15:30): https://youtu.be/XvDZLjaCJuw

URL with time: https://youtu.be/XvDZLjaCJuw?t=930

In the same video, there's a fun moment where they demonstrate constructing a simple spell checker out of unix primitives, and the demonstrator comments that "unix" is a word unlikely to ever appear in the dictionary: https://youtu.be/XvDZLjaCJuw?t=551

Of course, now it's in every dictionary!

Thanks for posting the wikipedia page with the recording. It brought back memories!

Yes, it is certainly difficult to understand the sound. However, all these years later, the same could be said of remote video connections in which speech is sometimes replaced with undecipherable squeaks and echos.

I'm surprised that zoom et al. have not developed a scheme to show text during these squeaking times. After all, any meeting has people and computers that could detect a temporary problem, mandating a temporary switch to a dictation mode.

The author has uploaded a demo on YT: https://www.youtube.com/watch?v=RO00-eby6_E

Radio Shack is responsible for this chip being commonly known as the SPO256, which was in fact a typo in the documentation for the Radio Shack "Narrator Speech Processor". Its correct name is SP0256, with a zero, not a letter O.

That’s more like text to gibberish.

The example sounds almost scouser?