<s>
Before	B-Application
You	I-Application
Know	I-Application
It	I-Application
(	O
usually	O
Byki	B-Application
)	O
is	O
language	O
acquisition	O
software	O
package	O
that	O
listens	O
to	O
students	O
and	O
gives	O
them	O
detailed	O
feedback	O
on	O
their	O
pronunciation	O
.	O
</s>
<s>
There	O
is	O
also	O
freeware	B-License
for	O
both	O
Windows	B-Application
and	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
which	O
does	O
not	O
check	O
pronunciation	O
.	O
</s>
<s>
The	O
freeware	B-License
version	O
uses	O
a	O
flashcard	O
software	O
system	O
.	O
</s>
<s>
Courses	O
branded	O
as	O
Byki	B-Application
were	O
produced	O
by	O
Transparent	O
Language	O
Online	O
,	O
which	O
still	O
produces	O
courses	O
under	O
that	O
and	O
other	O
names	O
.	O
</s>
<s>
The	O
software	O
has	O
a	O
virtual	B-Architecture
community	I-Architecture
of	O
users	O
who	O
make	O
the	O
vocabulary	O
database	O
bigger	O
.	O
</s>
<s>
This	O
flashcard	O
software	B-Application
program	I-Application
helps	O
learning	O
and	O
remembering	O
dozens	O
of	O
foreign	O
languages	O
vocabulary	O
words	O
and	O
is	O
available	O
for	O
both	O
Windows	B-Application
and	O
Macintosh	B-Device
.	O
</s>
<s>
The	O
language	B-Application
software	I-Application
has	O
interactive	O
vocabulary	O
practice	O
,	O
progress	O
tracker	O
and	O
sound	O
files	O
.	O
</s>
<s>
A	O
distinctive	O
feature	O
in	O
paid	O
versions	O
is	O
their	O
ability	O
to	O
record	O
and	O
graph	O
the	O
learner	O
's	O
pronunciation	O
in	O
detail	O
,	O
and	O
compare	O
it	O
to	O
the	O
native	O
speaker	O
's	O
pronunciation	O
of	O
the	O
same	O
words	O
stored	O
in	O
the	O
program	B-Application
.	O
</s>
