Fonix proudly introduces DECtalk version 5.01-E1, the worlds most intelligible text-to- speech (TTS) synthesizer, now with a more natural sounding voice. DECtalk has the smallest memory footprint in the industry for a full featured, multi-language voice synthesizer. DECtalks small footprint allows it to be used in devices where a TTS engine usually wouldn t be viable. DECtalk 5.01-E1 supports three languages: U.S. English, Castilian & Latin American Spanish. It also offers two voices, Paul and Wendy. DECtalk comes with an easy to use API, as well as Microsoft s Speech API, so you can give your application the power of speech. DECtalk has more than 1,400 letter-to-sound rules, as well as extensive text preprocessing, so it correctly speaks monetary text like: 1.25, or clock times: 12:31 pm, or dates: Jan. 1, 2004, and even phone numbers: 800-297-4863. Fonix DECtalk. Hear it for yourself. Table Of Contents Fonix DECtalk software ............................................................................................. 1 Welcome to DECtalk .............................................................................................. 1 Conventions ......................................................................................................... 2 Copyrights and trademarks ..................................................................................... 4 Licensing ............................................................................................................. 6 In-line commands .................................................................................................... 7 Comma Pause :comma ........................................................................................ 7 Design voice :dv ................................................................................................. 8 Mode :mode ...................................................................................................... 9 Name :name .................................................................................................... 11 Period Pause :period ......................................................................................... 13 Phoneme Interpretation :phoneme ...................................................................... 14 Pitch :pitch ...................................................................................................... 16 Pronounce :pronounce ....................................................................................... 17 Punctuation :punct ............................................................................................ 18 Rate Selection :rate .......................................................................................... 19 Say :say .......................................................................................................... 20 Skip :skip ........................................................................................................ 21 Using in-line commands .......................................................................................... 22 Introduction ....................................................................................................... 22 Rules and syntax ................................................................................................. 23 Optimizing spoken text ........................................................................................ 25 Period and comma pause durations ........................................................................ 27 Text-tuning example ............................................................................................ 28 Electronic mail-reading example ............................................................................ 30 Avoiding common errors ...................................................................................... 32 Customizing DECtalk voices ..................................................................................... 33 Introduction ....................................................................................................... 33 ii