msm9831 Oki Semiconductor, msm9831 Datasheet - Page 12

• Manufacturer Part Number: msm9831
• Description: Voice Synthesis Lsi With On-chip 384kbit Mask Rom
• Manufacturer: Oki Semiconductor

Phrase Control Table
Because the LSI contains the Phrase Control Table, it is possible to play back multiple phrases in succession by a
single easy control operation like controlling a single regular phrase playback. Up to 8 combined phrases
including a silence can be registered in a single address in the Phrase Control Table.
Further, you can use the maximum memory space for data storage because it is not required to have the same
phrase data.
To show an example, let's assume that your application needs to speak two similar sentences, "It is fine today" and
"It is rainy today." The two sentences have the common words "it", "is" and "today". What you have to do is to
prepare these common sound data, not in sentences but in words, and to store each combined phrase data in Phrase
Control Table as shown in Table 2 and Figure 2.
Multiple phrases can be played continuously merely by specifying a desired phrase using an X address. For an
example from Table 2, when address "01" is specified, "It is fine today" is played, and when address"02" is
specified, "It is rainy" is played.
Phrase Control Table, a silence can be inserted without using the User's Area.
1 Semiconductor
No.
30
31
1
2
3
X-Address
(HEX)
Minimum time for silence
Maximum time for silence
Time unit for setting up silence 32 ms
1E
1F
01
02
03
[01]
[01]
[01]
[02] Silence [04]
[02] Silence [05]
[02]
Table 2 Matrix of the Phrase Control Table
[04]
(Up to 8 phrases)
Y-Address
[09]
32 ms
992 ms
[03]
[03]
[06]
[05]
[0A]
[03]
It is (silence) fine today.
It is (silence) rainy today.
It is fine becoming cloudy, rainy in some areas today.
Sound Data
MSM9831-xxx
FEDL9831-02
12/23