Texas Instruments · Integrated speech controller
CM54129
The Texas Instruments speech-controller IC photographed inside Speak & Music.

Overview
The Speak & Music board in this collection carries a CM54129 ML-AS marked ©1986. Datamath’s firsthand teardown identifies CM54129 with the TI 50C40 integrated speech-controller design.
Image gallery

A consumer speech application
The speech controller combines control processing and voice generation with mask-programmed content. Speak & Music uses it in a musical learning aid with spoken instructions. The neighboring CF60034N is visible, but its exact function remains unconfirmed.
