msm6679al-110 Oki Semiconductor, msm6679al-110 Datasheet - Page 41

• Manufacturer Part Number: msm6679al-110
• Description: Si/sd Voice Recognizer, Recorder/player, And Speech
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Record (Continued)
SD Recognition Control
Opcode
Opcode
FA3Dh ~
FAFFh
Recognition performance is largely a function of how well the enrollment data represents subsequent tokens of the
enrolled utterances, and performance generally improves steadily with each additional enrollment pass. For most
applications, three initial enrollment passes are recommended. Subsequent reference updating can be performed
with the SD Recognize Update command (F342).
F521h
F6XYh
F9XYh
FB00h
FC00h
Reserved. These commands are reserved for
future use.
Clear SDR table. This command initializes a
blank SD template table. The 2684-byte area
from the address set by the F103 command
(the working SDR table) is set to zeros. The
SDR tables in the FLASH banks are not affected.
The default is (4A00 - 547B).
Set SD Segment Pointer. This command sets
the SD segment pointer to XY00h, i.e., set the
starting address of the current SD recognition
parame-ter table to XY00h. Issuing this
command is equivalent to issuing the Set SD
Origin command, F103h XY00h. (For further
details of operation, please refer to the
description of that command.)
Search for SD Utterance XY. This is the first
step in adding an utterance to the vocabulary,
or in replacing an existing one. The SD
vocabulary memory is searched for utt. no. XYh.
If it is not found and if sufficient SD memory
exists, the MSM6679AL-110 prepares to add
utterance number XYh to the vo-cabulary.
Enroll SD Utterance. This command starts
MSM6679AL-110 SD Listen mode, then uses
the next captured utterance to start or update
training of the reference data for SD utterance
number XY specified in the most recent Search
command (F9XYh). The user must be
prompted to say the utter-ance prior to issuing
this command.
If the utterance was previously enrolled, a
training update is performed; if not, the
reference data is initialized. Each utterance in
the SD vocabulary must be enrolled at least
once before it can be recognized.
Erase utterance from SD vocabulary. This
command erases the reference parameters for
utterance number XYh from the SD vocabulary,
where XYh is the utterance number retained
from the previous Search command (F9XYh).
Action
Action
MSM6679AL-110 Voice Recognition Processor
—
F501h
No return value.
F740h
F700h
F73Fh
F740h
F700h
F73Eh
F802h
F840h
F740h
—
SDR table is cleared
Utterance number found.
Utterance number not found.
Memory full.
Operation complete.
Aborting SD Listen mode.
Improper level, must repeat.
Invalid signal processing table.
Sample data overrun.
Operation complete.
Return Value
Return Value
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