Figures for the MEA8000 Speech chip. The Figures were found at http://vesta.homelinux.free.fr/site/wiki/le_synthetiseur_vocal_mea_8000.html - that webpage also contains further (French) info.
Filters
Overall
Parameter Translation
DAC
External Amplifier Schematics
Control Signals
Interpolation
Software Examples
Pin Outs
Filters and Noise (English)
- This image was found on Page 77 in a documented called "The Typophone: A Talking Typewriter", Proefschrift from "Johannes Norbertus Kroon" at "Technische Universiteit Eindhoven". The document refers to tools for blind people in general, and contains some details on the MEA8000 chip.
- Interresting is that Noise seems to be generated by some ADD/MULTIPLY operations.
- And, the Normalization (N) stuff implies that there are some (Normalization, means what... Floating Point? Saturation? Interpolation?) adjustments done at various different locations.