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8-7 Conversion
To t r a n s m i t Bbit-byte d a t a i n M I D I SysEx, any d a t a b y t e s s h o u l d be 7 b i t - b y t e d a t a .
F i r s t ,
s t r i p
o u t bit7(MSB) from s o u r c e 7 b y t e s of d a t a , and b u i l t 1 b y t e d a t a a t t a c h i n g
MSB=O
.
Then s e n d t h i s b y t e f i r s t , and s e n d
1st
-
7 t h d a t a w i t h o u t MSB. These
8
b y t e s a r e
combined
t o
1 b l o c k .
(Fig. 1)
I f s t r e a m of d a t a
i s less
t h a n 7 b y t e s ,
stream
b y t e s
+
1 w i l l be a s i z e of t h e b l o c k .
( F i g .
2 )
F i g .
1
W a a a a BBBBbbbb ÇCCCcccc QDDDdddd BEEEeeee
EFFFffff
ÇGGGgggg
O m E D W OAAAaaaa OBBBbbbb OCCCcccc ODDDdddd OEEEeeee OFFFffff OGGGgggg
F i g
- 2
W a a a a BBBBbbbb ÇCCCcccc
l.
O O O O O C B A
OAAAaaaa OBBBbbbb OCCCcccc

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