<s>
Shorten	B-Operating_System
(	O
SHN	O
)	O
is	O
a	O
file	O
format	O
used	O
for	O
compressing	O
audio	O
data	O
.	O
</s>
<s>
It	O
is	O
a	O
form	O
of	O
data	B-Algorithm
compression	I-Algorithm
of	O
files	O
and	O
is	O
used	O
to	O
losslessly	B-Algorithm
compress	O
CD-quality	O
audio	O
files	O
(	O
44.1	O
kHz	O
16-bit	O
stereo	O
PCM	B-Algorithm
)	O
.	O
</s>
<s>
Shorten	B-Operating_System
is	O
no	O
longer	O
developed	O
and	O
other	O
lossless	B-Algorithm
audio	B-Algorithm
codecs	I-Algorithm
such	O
as	O
FLAC	B-Application
,	O
Monkey	B-Language
's	I-Language
Audio	I-Language
(	O
APE	B-Language
)	O
,	O
TTA	B-Algorithm
,	O
and	O
WavPack	B-Application
(	O
WV	O
)	O
have	O
become	O
more	O
popular	O
.	O
</s>
<s>
However	O
,	O
Shorten	B-Operating_System
is	O
still	O
in	O
use	O
by	O
some	O
people	O
because	O
there	O
are	O
legally	O
traded	O
concert	O
recordings	O
in	O
circulation	O
that	O
are	O
encoded	O
as	O
Shorten	B-Operating_System
files	O
.	O
</s>
<s>
Shorten	B-Operating_System
files	O
use	O
the	O
.shn	B-Operating_System
file	O
extension	O
.	O
</s>
<s>
Since	O
few	O
players	O
or	O
media	O
writers	O
attempt	O
to	O
decompress	O
Shorten	B-Operating_System
files	O
,	O
a	O
standalone	O
decompression	O
program	O
is	O
usually	O
required	O
to	O
convert	O
to	O
a	O
different	O
file	O
format	O
that	O
those	O
applications	O
can	O
handle	O
.	O
</s>
<s>
Some	O
Rockbox	B-Application
applications	O
can	O
play	O
Shorten	B-Operating_System
files	O
without	O
decompression	O
,	O
and	O
third-party	O
Shorten	B-Operating_System
plug-ins	O
exist	O
for	O
Nero	B-Application
Burning	I-Application
ROM	I-Application
,	O
Foobar2000	B-Application
,	O
and	O
Winamp	B-Application
.	O
</s>
<s>
All	O
libavcodec	B-Language
based	O
players	O
and	O
converters	O
support	O
the	O
Shorten	B-Operating_System
codec	O
.	O
</s>
<s>
Current	O
versions	O
of	O
ffmpeg	B-Library
or	O
avconv	B-Language
support	O
the	O
shorten	B-Operating_System
format	O
.	O
</s>
<s>
To	O
convert	O
all	O
.shn	B-Operating_System
files	O
in	O
the	O
current	O
directory	O
to	O
FLAC	B-Application
on	O
Linux	B-Application
:	O
</s>
<s>
A	O
similar	O
command	O
using	O
the	O
freely	O
available	O
ffmpeg	B-Library
for	O
the	O
Microsoft	B-Application
Windows	I-Application
command	O
line	O
:	O
</s>
<s>
For	O
a	O
GUI-based	O
solution	O
,	O
dBpoweramp	O
can	O
be	O
used	O
,	O
however	O
on	O
a	O
64-bit	O
version	O
of	O
Windows	O
the	O
32-bit	O
version	O
of	O
the	O
app	O
must	O
be	O
installed	O
,	O
as	O
the	O
Shorten	B-Operating_System
codec	O
does	O
not	O
come	O
in	O
a	O
64-bit	O
variant	O
.	O
</s>
<s>
X	O
Lossless	B-Algorithm
Decoder	O
(	O
XLD	O
)	O
,	O
an	O
open	O
source	O
graphical	O
and	O
command	O
line	O
application	O
powered	O
by	O
the	O
libsndfile	B-Language
and	O
SoX	B-Operating_System
libraries	O
,	O
supports	O
transcoding	O
Shorten	B-Operating_System
files	O
to	O
a	O
variety	O
of	O
lossless	B-Algorithm
and	O
lossy	O
formats	O
.	O
</s>
