MSM9811GA View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

Manufacturer

MSM9811GA

4-Channel Mixing OKI ADPCM Type Voice Synthesis LSI

Oki Electric Industry 

OKI Semiconductor

FEDL9811FULL-04

MSM9811

Mixing Function

It is possible to mix 4 channels at a time. Moreover, the LSI is capable of starting or stopping voices of each

channel separately.

• Note on waveform clamping during mixing

Increasing the number of channels to be mixed may cause clamping.

To prevent clamping, reduce the volumes of all channels using the OPT command.

(Note)

Mixing using a different sampling frequency cannot be done.

Continuous Playback Function

The continuous playback function is used to continuously play back the next phrase after playing back a phrase.

The next phrase to be played can be previously selected while a phrase is being played back.

See “Continuous Playback Flowchart” for details.

The continuous playback function is also available in the case of the phase control table.

(Note)

The following changes of voice synthesis algorithms are not permitted for continuous playback function. These

changes may generate noises.

• ADPCM → ADPCM2

• ADPCM2 → ADPCM

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