Searching for L&H TTS3000 SDK
Hi, I am looking for the SDK of an old L&H TTS3000 speech engine. Note that I am looking for its SDK (include .h files, example programs, API docs or anything else relevant), not the synthesizer itself (easy to find).
Searched all over the internet, found some traces here and there, but nothing solid. I know the product is pretty old and since it's been released in late 90s there are no download links atm (dunno if it was even published online, most likely it used to be distributed on CD) but am sure someone still has it.
P.S. I know the engine is SAPI4-compatable but I am looking for its own API without any extra layer. I know it existed once, I have a program (a exe without source code) that makes use of it.