Specifications

26 System Overview

MA-0554-88

Figure 2–2 DECvoice DTC04 Module and TLI Assembly

The hardware components include the DECvoice DTC04 Q-bus module

and telephone line interface (TLI) assembly with cables. Figure 2-2 shows

the hardware components.

The software components include the DECvoice Run-Time Library (RTL),

ancilliary control process (ACP), device driver, and system ﬁrmware.

This document deals mainly with the hardware. For a detailed description

of the DECvoice software components, see the DECvoice Software

Reference Manual.

2.1 Features

This section describes the DTC04 Q-bus module and the TLI assembly

components.

2.1.1 DTC04 Q-bus Module

The DTC04 module is the heart of the DECvoice system. This module

provides the following capabilities:

• Text-to-speech conversion capabilites of the DECtalk DTC03 system

• Speaker-independent voice recognition of the numbers 0 through 9,

and the words "yes," "no," and "oh"

• Speaker-dependent voice recognition of up to 50 words