<s>
Subvocal	B-General_Concept
recognition	I-General_Concept
(	O
SVR	O
)	O
is	O
the	O
process	O
of	O
taking	O
subvocalization	O
and	O
converting	O
the	O
detected	O
results	O
to	O
a	O
digital	O
output	O
,	O
aural	O
or	O
text-based	O
.	O
</s>
<s>
Subvocal	B-General_Concept
speech	I-General_Concept
recognition	I-General_Concept
deals	O
with	O
electromyograms	O
that	O
are	O
different	O
for	O
each	O
speaker	O
.	O
</s>
<s>
Relevant	O
applications	O
for	O
this	O
technology	O
where	O
audible	O
speech	O
is	O
impossible	O
:	O
for	O
astronauts	O
,	O
underwater	O
Navy	B-Application
Seals	I-Application
,	O
fighter	O
pilots	O
and	O
emergency	O
workers	O
charging	O
into	O
loud	O
,	O
harsh	O
environments	O
.	O
</s>
<s>
In	O
Speaker	O
for	O
the	O
Dead	O
and	O
subsequent	O
novels	O
,	O
author	O
Orson	O
Scott	O
Card	O
described	O
an	O
ear	O
implant	O
,	O
called	O
a	O
"	O
jewel	O
"	O
,	O
that	O
allows	O
subvocal	B-General_Concept
communication	I-General_Concept
with	O
computer	O
systems	O
.	O
</s>
<s>
Author	O
Robert	O
J	O
.	O
Sawyer	O
made	O
use	O
of	O
subvocal	B-General_Concept
recognition	I-General_Concept
to	O
allow	O
silent	O
commands	O
to	O
the	O
cybernetic	O
'	O
companion	O
implants	O
 '	O
used	O
by	O
the	O
advanced	O
Neanderthal	O
characters	O
in	O
his	O
Neanderthal	O
Parallax	O
trilogy	O
of	O
science	O
fiction	O
novels	O
.	O
</s>
<s>
In	O
Kage	O
Baker	O
's	O
Company	O
novels	O
,	O
the	O
immortal	O
cyborgs	B-Application
communicate	O
subvocally	O
.	O
</s>
<s>
In	O
Deus	B-Application
Ex	I-Application
:	I-Application
Human	I-Application
Revolution	I-Application
(	O
2011	O
)	O
,	O
the	O
protagonist	O
is	O
augmented	O
with	O
a	O
subvocalization	O
implant	O
for	O
sending	O
covert	O
communications	O
(	O
and	O
a	O
corresponding	O
cochlear	O
implant	O
for	O
receiving	O
covert	O
communications	O
)	O
.	O
</s>
<s>
In	O
the	O
tabletop	O
RPG	O
and	O
video	O
game	O
series	O
Shadowrun	B-Application
,	O
player	O
characters	O
can	O
communicate	O
via	O
subvocal	O
microphones	O
in	O
some	O
instances	O
.	O
</s>
