ISD-T360SB Datasheet, PDF (59/109 Pages) List of Unclassifed Manufacturers – VoiceDSP Digital Speech Processor with Master/Slave, Full-Duplex Speakerphone, Multiple Flash and ARAM/DRAM Support

2—SOFTWARE
ISD-T360SB
Figure 2-4: The Interrelationship between the Word, the Number, and the Sentence Tables
Sentence Table
Word Table
You have OPT_NUMBER CONTROL_SING MESSAGES
five
twenty
You have
messages
message
Number Table
Control and Option Codes
The list of word indices alone cannot provide the
entire range of sentences that the VoiceDSP pro-
cessor is able to synthesize. IVS control and op-
tion codes send special instructions to control
the speech synthesis algorithm’s behavior in the
processor.
For example, if the sentence should announce
the time of day, the VoiceDSP processor should
be able to substitute the current day and time in
the sentence. These control words do not repre-
sent recorded words, rather they instruct the pro-
cessor to take special actions.
THE IVS TOOL
The IVS tool includes two utilities:
1. The DOS-based IVS Compiler
2. IVSTOOL for Windows. A Windows 3.1/95
based utility
The tools help create vocabularies for the
VoiceDSP processor. They take you from design-
ing the vocabulary structure, through defining
the vocabulary sentences, to recording the vo-
cabulary words.
IVS Compiler
The IVS compiler runs on MS-DOS (version 5.0 or
later) and enables you to insert your own vocab-
ulary, (i.e., basic words and data used to create
numbers and sentences, as directories and files
in MS-DOS). The IVS compiler then outputs a bi-
nary file containing that vocabulary. In turn, this
information can be burned into an EPROM or
Flash memory to be used by the VoiceDSP soft-
ware.
NOTE
The IVS data cannot be stored in EPROM
when semi-parallel Flash is used (Samsung
or Toshiba).
IVS Voice Compression
Each IVS vocabulary can be compiled with ei-
ther the 5.3 Kbit/s, the 9.9 Kbit/s or the 16.8Kbit/s
voice compression algorithm, or in PCM format.
Define the compression rate before compilation.
The VoiceDSP processor automatically selects
the required voice decompression algorithm
when the SV command chooses the active vo-
cabulary.
ISD
2-19