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VK2000
Semiconductor
7.3. M9841 (Full part number MSM9841)
ADPCM recorder LSI with FIFO buffer and DMA interface.
Recording
If the device is still unrecorded, the combo box labelled “Phrase No” shows 01. It will automatically
increment as the RECORD button is clicked.
1. Select a recording number, select the desired sampling frequency, select the desired algorithm
2. Click on RECORD.
3. Click on STOP when finished.
4. The recorded phrase and algorithm appears in the combo boxes in the PLAY frame above.
Playback
1. Select MONO or STEREO
2. Set the volume for each channel separately, if you wish
3. Select a phrase from a combo box
4. Playback commences
Erase
1. Select the desired phrase from the combo box in the REC frame
2. Click on ERASE
