MIDI Retrofit & Decoder Kits, DIY Electronics—Worldwide Delivery
MIDISpeak: ROM Mode Operation
MIDISpeak Version 2 Only. For Version 1 kits, see ROM Mode B.Overview
In ROM Mode, use any MIDI keyboard or sequencer to send Note-On commands to the MIDISpeak. Each MIDI note triggers synthesis from a different location in the toy's ROM.
Different blocks of ROM are accessed via MIDI "Bank Select" commands. There are 128 banks.
The modulation wheel can also be used to select the different sound banks.
Synthesis "Speed"
The Speak & Spell series of toys can synthesize speech and sound in one of two modes: "normal" or "slow". The mode affects the pace of speech, but not the pitch. The MIDISpeak responds to MIDI program change commands to select the type of synthesis. "Normal" mode is assigned to program 0. "Slow" mode is assigned to program 1.
Prevent Automatic Shutoff
The Speak & Spell series of toys have an auto-shutoff feature. The auto-shutoff timer of the toy is reset automatically each time a sound is generated.