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20 Software (Continued)

294 The IVS Tool

The IVS tool includes two utilities

The DOS-based IVS Compiler

IVSTOOL for Windows A Windows 31

based utility

The tools allow you to create vocabularies

for the CompactSPEECH processor They

take you all the way from designing the

vocabulary structure through defining the

vocabulary sentences and recording the

vocabulary words

The IVS

The IVS compiler runs on MS-DOS (ver-

Compiler

sion 50 or later) It allows you to insert

your own vocabulary ie basic words and

data used to create numbers and sen-

tences as directories and files in MS-DOS

The IVS compiler then outputs a binary file

containing that vocabulary This informa-

tion can be burned into an EPROM or seri-

al flash for use by the CompactSPEECH

software

Voice

Each IVS vocabulary can be compiled us-

Compression

ing either 52 kbits or 73 kbits voice

compression algorithm The user defines

the compression rate before compilation

The CompactSPEECH automatically se-

lects the required voice decompression al-

gorithm when the SV command is used to

select the active vocabulary

The Graphical

The IVS package includes a Windows utili-

User Interface

ty that assists the vocabulary designer to

(GUI)

synthesize sentences With this utility you

can both compose sentences and listen to

them

295 How to Use the IVS Tool With the

CompactSPEECH

The IVS tool creates IVS vocabularies and stores them as a

binary file This file is burnt into a ROM device or pro-

grammed into a serial flash device using the INJ command

The CompactSPEECH SV command is used to select the

required vocabulary The SW SO SS and SAS commands

are used to synthesize the required word or sentence The

typical vocabulary-creation process is as follows

1 Design the vocabulary

2 Create the vocabulary files Use IVSTOOL for Windows

31 to simplify this process

3 Record the words using any standard PC sound card and

sound editing software that can create wav files

4 Run the IVS compiler to compress the wav files and

compile them and the vocabulary tables into an IVS vo-

cabulary file

5 Repeat steps 1 to 4 to create a separate IVS vocabulary

for each language that you want to use

6 Burn the IVS vocabulary files into a ROM (or serial flash)

device Use the INJ (Inject IVS) command to program the

data into a serial flash device

7 Once the vocabulary is in place the speech synthesis

commands of the CompactSPEECH can be used to syn-

thesize sentences

Figure 2-4 shows the vocabulary-creation process for a sin-

gle table on a ROM or serial flash device

210 INITIALIZATION

Use the following procedures to initialize the Compact-

SPEECH processor

NORMAL INITIALIZATION

1 Reset the CompactSPEECH by activating the RESET sig-

nal (See Section 131)

2 Issue a CFG (Configure CompactSPEECH) command to

change the configuration according to your environment

3 Issue an INIT (Initialize System) command to initialize the

CompactSPEECH firmware

4 Issue a series of TUNE commands to adjust the

CompactSPEECH to the requirements of your system

211 MICROWIRE SERIAL INTERFACE

MICROWIREPLUSTM is a synchronous serial communica-

tion protocol originally implemented in National Semicon-

ductor’s COPSTM microcontrollers and HPCTM families of

microcontrollers to minimize the number of connections

and thus the cost of communicating with peripherals

TLEE12584 – 38

FIGURE 2-4 Creation of an IVS Vocabulary

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