My favorites utility for generating way-too-low spoken text is AudioX’s SayIt. You can tune the thing so low it’s just sounds. Sweet.

 

 

1k speech synthesizer in compressed JavaScript. It’s understandable, if you put your mind to it..... via BoingBoing, and lots of recipes for sounds in the comments

 

NOTE: the uncompressed source for the 1K speech-code is at the above link.

 

not quite as tiny

 

 

Both of these are based on Tiny Speech Synth (demoscene file, in c++)

 

 

MeSpeak is in-browser speech, in JS. Pretty good, far better than the above, but not as funky as the above. AWWWW.

 

 

 

https://www.zabaware.com/products/store/comersus_viewItem.asp?idProduct=5#page=/products/index.html;

 

http://www.bytecool.com/voices.htm