isd-t360sb ETC-unknow, isd-t360sb Datasheet - Page 52

• Manufacturer Part Number: isd-t360sb
• Manufacturer: ETC-unknow

ISD-T360SB
2.3.5
Speech synthesis is the technology used to create
messages out of predefined words and phrases
stored in a vocabulary.
There are two kinds of predefined messages: fixed
messages (voice menus in a voice-mail system)
and programmable messages (time-and-day
stamp, or the You have n messages announce-
ment in a DTAD).
A vocabulary includes a set of predefined words
and phrases, needed to synthesize messages in
any language. Applications which support more
than one language require a separate vocabu-
lary for each language.
2-16
while () {
}
EV = wait_event()
case EV of:
SPEECH SYNTHESIS
spkr_button_pressed:
digit_pressed:
digit_timeout_event:
if (speakerphone_on) {
}
else
if (first_digit) {
}
GT <dtmf_of_digit> // Dial the digit
S
enable_digit_timeout_event() // To "guess" when dialing is completed.
SSM 1
deactivate_digit_timeout_event()
SSM 0
first_digit = TRUE
deactivate_digit_timeout_event()
SSM 1
SSM 4
first_digit = FALSE
Figure 2-3: Speakerphone Pseudo Code Representation
// Put VoiceDSP in idle mode
// Put VoiceDSP in full-duplex speakerphone mode
// Stop. Note that after the S command
// the VoiceDSP is still in speakerphone mode
// Dialing is completed, Go back to full-duplex mode
// Enter LISTEN mode
INTERNATIONAL VOCABULARY SUPPORT
(IVS)
IVS is a mechanism by which the VoiceDSP pro-
cessor utilizes several vocabularies stored on an
external storage device. IVS enables the ISD-
T360SB to synthesize messages with the same
meaning, but in different languages, from sepa-
rate vocabularies.
IVS Features
•
•
•
•
Multiple vocabularies stored on a single
storage device.
Plug-and-play. The same microcontroller
code is used for all languages.
Synthesized and recorded messages use the
same voice compression algorithm to
achieve equal quality.
Argumented sentences. (For example: You
have <n> messages.)
Voice Solutions in Silicon
2—SOFTWARE
™