Zoom 9030 - 8-7 Data Conversion Method

* 8-7 Conversion
To transmit 8bit-byte data in
MIDI SysEx, any data bytes
should be 7bit-byte data.
First, strip out bit7(MSB)
from source
7 bytes of data, and built
1 byte data attaching
MSB=O .
Then send this byte first, and send 1st - 7th data without MSB. These 8 bytes are
combined to
1 block. (Fig. l)
If stream of data is less than 7 bytes, stream bytes + 1 will be a size of the block.
(Fig.2)
maaaa BBBBbbbb GCCCcccc QDDDdddd EEEEeeee EFFFffff
GGGGgggg
5
OmDCRA OAAAaaaa OBBBbbbb OCCCcccc ODDDdddd OEEEeeee OFFFffff OGGGgggg
Fig.
2
AAAAaaaa BBBBbbbb CCCCcccc
OOOOO~ OAAAaaaa OBBBbbbb OCCCcccc