This is based on eSpeak [1] for Un*x environments, which is based on an application for Acorn/Risc OS. So, yes, it's quite dated. On the other hand, it's lean e

This is based on eSpeak [1] for Un*x environments, which is based on an application for Acorn/Risc OS. So, yes, it's quite dated. On the other hand, it's lean enough to be run in realtime in Emscripten... However, all the configuration data, including phoneme tables, may be overwritten (but you would have to install eSpeak on your machine first, in order to compile these.) Another approach would be actually porting this to JS (instead of cross-compiling), by this having full access. But I simply do not have the resources for this. (Meanwhile, there's the Web Speech Synthesis API. With this being available on most modern clients, it's probably not worth the effort.) [1] http://espeak.sourceforge.net/ http://espeak.sourceforge.net/