<s>
VoxForge	B-Application
is	O
a	O
free	B-Application
speech	O
corpus	O
and	O
acoustic	B-General_Concept
model	I-General_Concept
repository	O
for	O
open	B-License
source	I-License
speech	B-Application
recognition	I-Application
engines	O
.	O
</s>
<s>
VoxForge	B-Application
was	O
set	O
up	O
to	O
collect	O
transcribed	O
speech	O
to	O
create	O
a	O
free	B-Application
GPL	B-License
speech	O
corpus	O
for	O
use	O
with	O
open	B-License
source	I-License
speech	B-Application
recognition	I-Application
engines	O
.	O
</s>
<s>
The	O
speech	O
audio	O
files	O
will	O
be	O
'	O
compiled	O
 '	O
into	O
acoustic	B-General_Concept
models	I-General_Concept
for	O
use	O
with	O
open	B-License
source	I-License
speech	B-Application
recognition	I-Application
engines	O
such	O
as	O
Julius	B-General_Concept
,	O
ISIP	O
,	O
and	O
Sphinx	B-General_Concept
and	O
HTK	B-General_Concept
(	O
note	O
:	O
HTK	B-General_Concept
has	O
distribution	O
restrictions	O
)	O
.	O
</s>
<s>
VoxForge	B-Application
has	O
used	O
LibriVox	O
as	O
a	O
source	O
of	O
audio	O
data	O
since	O
2007	O
.	O
</s>
