<s>
In	O
electronic	O
audio	O
technology	O
,	O
a	O
patch	B-Protocol
point	I-Protocol
is	O
a	O
connection	O
that	O
allows	O
a	O
signal	O
to	O
be	O
withdrawn	O
from	O
a	O
device	O
,	O
modified	O
in	O
some	O
way	O
,	O
and	O
returned	O
.	O
</s>
<s>
This	O
can	O
,	O
for	O
example	O
,	O
be	O
done	O
using	O
a	O
phone	B-Device
connector	I-Device
,	O
using	O
the	O
tip	O
of	O
the	O
plug	O
for	O
the	O
outgoing	O
mono	O
signal	O
,	O
and	O
the	O
ring	O
for	O
the	O
returning	O
signal	O
,	O
a	O
configuration	O
known	O
as	O
"	O
tip	O
send	O
,	O
ring	O
return	O
"	O
.	O
</s>
<s>
Commonly	O
known	O
as	O
an	O
insert	B-Protocol
on	O
professional	O
audio	O
mixing	O
consoles	O
.	O
</s>
