https://www.selleckchem.com/pr....oducts/ly-3475070.ht
Strange as it may seem, von Kempelen's speaking machine from 1791 is the best result obtained in various attempts to build a mechanism similar to the speech apparatus, capable of producing a vocal signal. In this book discussion, we will illustrate von Kempelen's work, along with the attempts, across history, to build talking devices. We will highlight the 2 paths that have been followed over the centuries "vocal transport" and "artificial voice." The first case was a trick, because the voice was produced by a hidden subject and tran