(a work in progress)
MIDIBox SpeakJet Synthesiser is a project that uses the MagnevationSpeakjet controlled by midibox as a standalone synthesizer.
The SpeakJet IC was brought to market in February 2004, and is available from a variety of vendors for around $25 USD.
The SpeakJet is a completely self contained, single chip voice and complex sound synthesizer. It uses a mathematical sound algorithm to control an internal five channel sound synthesizer to generate on-the-fly, unlimited vocabulary speech synthesis and complex sounds.
The SpeakJet is preconfigured with 72 speech elements (allophones), 43 sound effects, and 12 DTMF touch tones. Through the selection of these sounds and in combination with the control of the pitch, rate, bend, and volume parameters, the user has the ability to produce unlimited phrases and sound effects, with thousands of variations, at any time.
The SpeakJet can be controlled simultaneously by logic changes on any one of its eight event input lines, and by a single I/O line from a CPU allowing for both CPU-controlled and standalone operations.
Other features include an internal 64 byte input buffer, internal programmable EEPROM, three programmable outputs, and direct user access to the internal five channel sound synthesizer.
This project is in progress at the moment. Please visit the Forum (and especially the first SpeakJet thread) or see the links below for more info.
Hardware:
Software: