<s>
Azimuth	B-Device
recording	I-Device
is	O
the	O
use	O
of	O
a	O
variation	O
in	O
angle	O
between	O
two	O
recording	O
heads	O
that	O
are	O
recording	O
data	O
so	O
close	O
together	O
on	O
magnetic	O
tape	O
that	O
crosstalk	O
would	O
otherwise	O
likely	O
occur	O
.	O
</s>
<s>
To	O
look	O
at	O
it	O
another	O
way	O
,	O
channel	O
A	O
sees	O
the	O
channel	O
B	O
data	O
stretched	O
out	O
in	O
time	O
,	O
hence	O
the	O
technique	O
has	O
a	O
low-pass	B-Algorithm
effect	O
on	O
noise	O
intruding	O
from	O
another	O
channel	O
.	O
</s>
<s>
Using	O
slant	O
azimuth	B-Device
recording	I-Device
,	O
the	O
need	O
for	O
guard	O
bands	O
,	O
that	O
is	O
the	O
blank	O
space	O
between	O
tracks	O
,	O
is	O
eliminated	O
,	O
allowing	O
more	O
recording	O
to	O
be	O
placed	O
on	O
a	O
given	O
length	O
of	O
tape	O
.	O
</s>
<s>
Later	O
,	O
the	O
JVC	O
VHS	O
and	O
the	O
Sony	O
Betamax	O
used	O
slant	O
azimuth	B-Device
recording	I-Device
also	O
.	O
</s>
<s>
These	O
digital	O
VTR	O
versions	O
used	O
azimuth	B-Device
recording	I-Device
as	O
well	O
.	O
</s>
