<s>
In	O
computing	O
,	O
the	O
Enlightened	B-Language
Sound	I-Language
Daemon	I-Language
(	O
ESD	O
or	O
EsounD	B-Language
)	O
was	O
the	O
sound	B-Application
server	I-Application
for	O
Enlightenment	B-Application
and	O
GNOME	B-Application
.	O
</s>
<s>
Esound	B-Language
is	O
a	O
small	O
sound	O
daemon	O
for	O
both	O
Linux	O
and	O
UNIX	O
.	O
</s>
<s>
ESD	O
accomplishes	O
these	O
things	O
while	O
remaining	O
transparent	B-Protocol
to	O
the	O
application	O
,	O
meaning	O
that	O
the	O
application	O
developer	O
can	O
simply	O
provide	O
ESD	O
support	O
and	O
let	O
it	O
do	O
the	O
rest	O
.	O
</s>
<s>
On	O
top	O
of	O
this	O
,	O
the	O
API	B-General_Concept
is	O
designed	O
to	O
be	O
very	O
similar	O
to	O
the	O
current	O
audio	O
device	O
API	B-General_Concept
,	O
making	O
it	O
easy	O
to	O
port	O
to	O
ESD	O
.	O
</s>
<s>
ESD	O
can	O
also	O
manage	O
network-transparent	O
audio	O
.	O
</s>
<s>
As	O
such	O
,	O
an	O
application	O
that	O
supports	O
ESD	O
can	O
output	O
audio	O
over	O
the	O
network	B-Architecture
,	O
to	O
any	O
connected	O
computer	O
that	O
is	O
running	O
an	O
ESD	O
server	O
.	O
</s>
<s>
ESD	O
support	O
must	O
be	O
specifically	O
written	O
and	O
added	O
into	O
applications	O
,	O
as	O
ESD	O
does	O
not	O
emulate	O
normal	O
audio	O
hardware	O
APIs	B-General_Concept
.	O
</s>
<s>
Since	O
ESD	O
has	O
been	O
around	O
for	O
over	O
a	O
decade	O
,	O
earlier	O
than	O
almost	O
any	O
other	O
sound	B-Application
server	I-Application
,	O
a	O
very	O
large	O
number	O
of	O
Unix	O
applications	O
have	O
support	O
for	O
ESD	O
output	O
built-in	O
,	O
or	O
available	O
as	O
add-ons	O
.	O
</s>
<s>
ESD	O
was	O
maintained	O
as	O
part	O
of	O
the	O
GNOME	B-Application
project	O
,	O
but	O
as	O
of	O
April	O
2009	O
,	O
all	O
ESD	O
modules	O
in	O
GNOME	B-Application
have	O
been	O
ported	O
to	O
libcanberra	B-Application
for	O
event	O
sounds	O
or	O
GStreamer/PulseAudio	O
for	O
everything	O
else	O
.	O
</s>
<s>
PulseAudio	B-Library
2.0	O
completely	O
drops	O
ESounD	B-Language
support	O
.	O
</s>
<s>
Esound	B-Language
(	O
ESD	O
)	O
is	O
a	O
stand-alone	O
sound	O
daemon	O
that	O
abstracts	O
the	O
system	O
sound	O
device	O
to	O
multiple	O
clients	O
.	O
</s>
<s>
Under	O
Linux	O
using	O
the	O
Open	B-Library
Sound	I-Library
System	I-Library
(	O
OSS	O
)	O
,	O
as	O
well	O
as	O
other	O
UNIX	O
systems	O
,	O
typically	O
only	O
one	O
process	O
may	O
open	O
the	O
sound	O
device	O
.	O
</s>
<s>
This	O
is	O
not	O
acceptable	O
in	O
a	O
desktop	O
environment	O
like	O
GNOME	B-Application
,	O
as	O
it	O
is	O
expected	O
that	O
many	O
applications	O
will	O
be	O
making	O
sounds	O
(	O
music	O
decoders	O
,	O
event	O
based	O
sounds	O
,	O
video	O
conferencing	O
,	O
etc	O
.	O
)	O
.	O
</s>
<s>
For	O
a	O
client	O
on	O
a	O
remote	O
machine	O
,	O
the	O
data	O
is	O
sent	O
by	O
libesd	O
on	O
the	O
remote	O
machine	O
over	O
the	O
network	B-Architecture
to	O
the	O
ESD	O
daemon	O
.	O
</s>
<s>
The	O
process	O
is	O
completely	O
transparent	B-Protocol
to	O
the	O
application	O
using	O
ESD	O
.	O
</s>
