Echo II (expansion card)
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The Echo II is a plug-in expansion card, speech synthesizer card for the Apple II and Apple IIe personal computers that allow applications to use speech synthesis.[1] The Echo II provides a speaker/headphones jack on board, with a physical volume control adjustment.
The Echo II software can synthesize either unlimited text-to-speech using stitched phonemes, or play back raw LPC data for specific words, with resulting higher speech quality.
LPC (
speech synthesizers
.
References
- ^ "Learning With Computers: The Computer Speaks, But Will It Listen?". www.atarimagazines.com. Retrieved 2023-03-19.