NSAM266SA Datasheet, PDF (28/52 Pages) National Semiconductor (TI) – NSAM266SA CompactSPEECHTM Digital Speech Processor with Serial Flash Interface

2 0 Software (Continued)
Example 2 The number 0 can be an-
nounced as no as in you have
no messages or as oh as in
monday eight oh five am
A separate number table is re-
quired for each particular type
of use The number table con-
tains the indices of the words
in the vocabulary that are
used to synthesize the num-
ber Up to nine number tables
can be included in a vocabu-
lary
The sentence
table
The sentence table describes the prede-
fined sentences in the vocabulary The
purpose of this table is to make the micro-
controller that drives the Compact-
SPEECH independent of the language be-
ing synthesized
For example if the serial flash and or
ROM contain vocabularies in various lan-
guages and the first sentence in each vo-
cabulary means you have n messages
the microcontroller switches languages by
issuing the following command to Com-
pactSPEECH
SV ^kstorage media ^{l k}vocabulary id ^l
Select a new vocabulary
The microcontroller software is thus inde-
pendent of the grammar of the language
in use
The sentences consist of words which
are represented by their indices in the vo-
cabulary
Sentence 0
All sentences but one are user defined
The CompactSPEECH treats the first sen-
tence in the sentence table i e sentence
0 in a special way to support time day
Example 1
Example 2
Control and
option codes
announcement It assumes that the sen-
tence is designed for system and message
time day announcement and has one ar-
gument which is interpreted as follows
0 - System time will be announced
1 - The time day of the current message
will be announced
When the microcontroller sends the com-
mand
SAS O 0
The system time day is announced
When the microcontroller sends the com-
mand
SAS O 1
The current message time day stamp is
announced
Figure 2-3 shows the interrelationship be-
tween the three types of tables
The list of word indices alone cannot pro-
vide the entire range of sentences that the
CompactSPEECH can synthesize IVS
control and option codes are used as spe-
cial instructions that control the behavior of
the speech synthesis algorithm in the
CompactSPEECH
For example if the sentence should an-
nounce the time of day the Compact-
SPEECH should be able to substitute the
current day and time in the sentence
These control words do not represent re-
corded words rather they instruct the
CompactSPEECH to take special actions
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FIGURE 2-3 Relationship of IVS Tables
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