<s>
FluidSynth	B-Application
,	O
formerly	O
named	O
iiwusynth	B-Application
,	O
is	O
a	O
free	O
open	O
source	O
software	B-Application
synthesizer	I-Application
which	O
converts	O
MIDI	O
note	O
data	O
into	O
an	O
audio	O
signal	O
using	O
SoundFont	B-Application
technology	O
without	O
need	O
for	O
a	O
SoundFont-compatible	O
soundcard	O
.	O
</s>
<s>
FluidSynth	B-Application
can	O
act	O
as	O
a	O
virtual	O
MIDI	O
device	O
,	O
able	O
to	O
receive	O
MIDI	O
data	O
from	O
any	O
program	O
and	O
transform	O
it	O
into	O
audio	O
on-the-fly	O
.	O
</s>
<s>
The	O
combination	O
of	O
these	O
features	O
gives	O
FluidSynth	B-Application
the	O
following	O
major	O
use	O
cases	O
:	O
</s>
<s>
The	O
size	O
of	O
loaded	O
SoundFont	B-Application
banks	O
is	O
limited	O
by	O
the	O
amount	O
of	O
RAM	O
available	O
.	O
</s>
<s>
There	O
is	O
a	O
GUI	B-Application
for	O
FluidSynth	B-Application
called	O
Qsynth	B-Application
,	O
which	O
is	O
also	O
open	O
source	O
.	O
</s>
<s>
Both	O
are	O
available	O
in	O
most	O
Linux	B-Application
distributions	O
,	O
and	O
can	O
also	O
be	O
compiled	B-Language
for	O
Windows	B-Application
.	O
</s>
<s>
Windows	B-Application
binary	O
installers	O
are	O
not	O
distributed	O
alone	O
and	O
are	O
bundled	O
with	O
QSynth	B-Application
.	O
</s>
<s>
A	O
Max/MSP	B-Application
plugin	O
is	O
available	O
from	O
IRCAM	O
.	O
</s>
<s>
The	O
core	O
synthesizer	O
is	O
written	O
as	O
a	O
C	B-Language
library	O
with	O
a	O
large	O
application	B-Application
programming	I-Application
interface	I-Application
(	O
API	B-Application
)	O
.	O
</s>
<s>
Partial	O
bindings	O
for	O
Python	B-Language
,	O
Ruby	B-Language
,	O
Haskell	B-Language
,	O
and	O
.NET	B-Application
Framework	I-Application
are	O
available	O
.	O
</s>
