Man, this brings back memories of playing with Festival back in the day. I wrote a bunch of scripts to generate dynamic Festival text2speech audio for a Part15 AM radio station, a virtual radio station DJ over 15 years ago. The intelligibility was not great back then, the funny thing was after spending many hours listening and tweaking my input text I trained myself to understand the default voice a lot better. Other people had a hard time with the default voice but I could understand it perfectly. Thankfully some of the improved voices available back then helped it a lot.To fix pronunciation problems I had developed a set of domain-specific "dictionaries", sed substitution scripts that would translate certain words and phrases into their phonetic versions that would be pronounced better by Festival. Besides announcing the names of songs being played, I was also feeding news articles and some other web-scraped info through it. Tons of fun to hear your project working on the air in public as you drive around town.
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