DECtalk DTC03

This document is the Owner's Manual for the DECtalk DTC03 Text-to-Speech System, published in December 1985. It serves as a comprehensive guide for users and programmers to understand, operate, and program the DECtalk DTC03, which converts computer text into human-sounding voice.

The manual begins with a general description of the system, including its hardware components, controls (LEDs and pushbuttons), diagnostic tests, and overall operating modes. It then delves into how DECtalk communicates with a host computer, detailing programming techniques such as escape sequences, character encoding (ASCII, 7-bit/8-bit), and various control functions for data transfer and system setup.

Sections are dedicated to maintenance and test commands (like self-tests and status requests) and detailed information on integrating the DECtalk with telephone communication systems. A significant portion of the manual covers DECtalk's phonemic input, explaining how text is processed into speech, including rules for pronunciation, stress, and intonation. It also provides extensive details on modifying voice characteristics, such as speaking rate, pitch, and other speaker-definition parameters.

Finally, the manual offers guidance for developing applications using DECtalk, along with common errors and troubleshooting tips. The appendices provide technical references, including comprehensive lists of escape sequences, status replies, configuration settings, abbreviations, phonetic correspondence, and programming examples.

Overall, the manual provides a deep dive into both the hardware and software aspects of the DECtalk DTC03, enabling users to effectively utilize and customize its text-to-speech capabilities.