<s>
An	O
audio	O
conversion	O
app	O
(	O
also	O
known	O
as	O
an	O
audio	O
converter	O
)	O
transcodes	B-Algorithm
one	O
audio	O
file	O
format	O
into	O
another	O
;	O
for	O
example	O
,	O
from	O
FLAC	B-Application
into	O
MP3	B-Application
.	O
</s>
<s>
An	O
audio	O
converter	O
uses	O
at	O
least	O
two	O
sets	O
of	O
audio	B-Algorithm
codecs	I-Algorithm
to	O
decode	O
the	O
source	O
file	O
format	O
and	O
to	O
encode	O
the	O
destination	O
file	O
.	O
</s>
<s>
Audio	B-Algorithm
converters	I-Algorithm
include	O
:	O
</s>
