adding word to talkie library

hello every one
i am working on a project which is a robot ,i make this robot to do a lot of thing but i have a problem with adding words to talkie library , i am using Audacity to convert the audio to 16 bits and 8000 khz but i don’t know what should i do next , i tried to convert the file to hex but i heared noises from my speaker , so i think there is some other steps to do , is there any one can help me
notice : i tried to change the library to PCM library but this library do not work with other libraries .

The Talkie library uses a highly specialized way of encoding words, and it is not easy to reproduce the sequence of events. Look through the various speech ROM dumps to see if the word you want is there.

If not, start reading about how to add words here.