The early #history of the vocoder, #speech-codecs, and analog one-time pad #cryptography.
on 02016-04-25a #pdf #ebook “Linear Predictive Coding and the Internet Protocol”, by Robert M. Gray, explaining the history of #LPC #speech-codecs in #DSP and the history of the development of IP, especially UDP. Covers all the #math of LPC. #protocols
on 02015-09-04