<s>
Voice	B-Application
search	I-Application
,	O
also	O
called	O
voice-enabled	O
,	O
allows	O
the	O
user	O
to	O
use	O
a	O
voice	B-Application
command	I-Application
to	O
search	O
the	O
Internet	O
,	O
a	O
website	O
,	O
or	O
an	O
app	O
.	O
</s>
<s>
In	O
a	O
broader	O
definition	O
,	O
voice	B-Application
search	I-Application
includes	O
open-domain	O
keyword	O
query	O
on	O
any	O
information	O
on	O
the	O
Internet	O
,	O
for	O
example	O
in	O
Google	B-Application
Voice	I-Application
Search	I-Application
,	O
Cortana	B-Application
,	O
Siri	B-Application
and	O
Amazon	B-Device
Echo	I-Device
.	O
</s>
<s>
Voice	B-Application
search	I-Application
is	O
often	O
interactive	O
,	O
involving	O
several	O
rounds	O
of	O
interaction	O
that	O
allows	O
a	O
system	O
to	O
ask	O
for	O
clarification	O
.	O
</s>
<s>
Voice	B-Application
search	I-Application
is	O
a	O
type	O
of	O
dialog	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
Voice	B-Application
search	I-Application
is	O
not	O
a	O
replacement	O
for	O
typed	O
search	O
.	O
</s>
<s>
Voice	O
searching	O
is	O
a	O
method	O
of	O
search	O
which	O
allows	O
users	O
to	O
search	O
using	O
spoken	O
voice	B-Application
commands	I-Application
rather	O
than	O
typing	O
.	O
</s>
<s>
Three	O
common	O
methods	O
to	O
activate	O
voice	B-Application
search	I-Application
:	O
</s>
<s>
While	O
spoken	O
and	O
written	O
languages	O
differ	O
,	O
voice	B-Application
search	I-Application
should	O
support	O
natural	O
spoken	O
language	O
instead	O
of	O
only	O
transforming	O
voice	O
into	O
text	O
and	O
doing	O
a	O
regular	O
text	O
search	O
with	O
the	O
help	O
speech	B-Application
recognition	I-Application
.	O
</s>
<s>
For	O
example	O
,	O
in	O
typed	O
search	O
an	O
eCommerce	O
user	O
can	O
easily	O
copy	O
and	O
paste	O
an	O
alphanumeric	O
product	O
code	O
to	O
search	O
field	O
,	O
but	O
when	O
speaking	O
the	O
search	O
terms	O
can	O
be	O
very	O
different	O
,	O
such	O
as	O
"	O
show	O
me	O
the	O
new	O
Bluetooth	O
headphones	O
by	O
Samsung	B-Application
"	O
.	O
</s>
<s>
The	O
difference	O
between	O
text	O
and	O
voice	B-Application
search	I-Application
is	O
not	O
only	O
the	O
input	O
type	O
.	O
</s>
<s>
It	O
can	O
include	O
text-to-speech	B-Application
(	O
TTS	O
)	O
or	O
a	O
regular	O
display	O
for	O
output	O
modalities	B-Application
.	O
</s>
<s>
It	O
will	O
then	O
detect	O
the	B-Application
keywords	I-Application
and	O
context	O
of	O
the	O
sentence	O
.	O
</s>
