- #Votrax type n talk text to speech synthesizer online software
- #Votrax type n talk text to speech synthesizer online code
The routines need to be programmed each time you want to produce speech.
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The procedures for doing this are all fairly straightforward and suitable short routines are given in the documentation. You need to open your computer's output channel and send the appropriate data - all the while checking the status of the sound chip (an SC-01 equivalent) to see if it is ready for data transfer. Comprehensive interfacing information is given in the documentation.
#Votrax type n talk text to speech synthesizer online software
The Chatterbox behaves as an output device - power is supplied from on-board your computer and the unit uses no memory, apart from that required by the software you will need to write.
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On top of the unit is a DIN socket for inputting simultaneous audio signals, output sockets for connection to a loudspeaker or amplifier and a DIN socket to interface the Chatterbox with William Stuart's Big Ears speech recognition device. William Stuart provide leads to fit a number of popular computers - the documentation also gives pinout information so you can wire your own interface. The Chatterbox looks cheaper than its £50 price, it comes in an insubstantial black plastic box with an unprotected loudspeaker mounted on the front and a lead which connects to your computer's input/output or expansion port squeezing out of the back. The other two devices - the Currah Microspeech and the top of the range Votrax Personal Speech System (from the makers of the SC-01) - include interpretive software which allows strings of words to be converted directly into speech. This involves a considerable amount of programming to get any sounds, but gives great flexibility.
#Votrax type n talk text to speech synthesizer online code
In the simplest of the reviewed systems - the William Stuart Chatterbox - the allophones are generated by entering the code in the form of a decimal number between 0 and 63 using a POKE statement or some equivalent output procedure. The three devices reviewed below are all of the allophone type, built around the common SC-01 chip (or equivalent) which can generate 64 allophones (including pauses) accessed by six-bit codes formed from the six least significant characters of a byte. Real human voices don't come into it at all! But, although it is possible to create new words by combining portions of the stored vocabulary, digitised systems are not very flexible and - except in the most expensive versions - still suffer from a touch of the 'Metal Mickeys', resulting from the techniques used to save memory space.Īllophone (or phoneme) systems, which are becoming increasingly popular, electronically synthesize units of spoken sound (something like phonetic syllables) and combine them to form words. The advantages of this system are obvious: the chip contains a lexicon of common words which are readily accessed and reproduced in near-human tones. Such a chip is available for the BBC computer - produced by Acorn and employing the dulcet tones of newsreader Kenneth Kendall. The first uses actual words spoken by a real person stored in digitised form on a ROM chip.
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There are currently two available systems for microcomputer speech generation. Gary Herman looks at three computer systems which can take the words off your hands as well as the music.