If you've listened to pop music in the past 40 years, you've probably heard more than a few songs with a robotic sound. That's thanks to the vocoder, a device invented by Bell Labs, the research ...

It is hard to remember that scant decades ago, electronic magazines — the pre-Internet equivalent of blogs — featured lots of audio circuits based on analog processing. Music synthesizers were popular ...

AT the World's Fairs in New York and San Francisco great interest was shown in the speech synthesizer shown in the Bell System exhibits. In the December number of the Bell Laboratories Record, H.