<s>
RTAudio	B-Algorithm
is	O
a	O
Microsoft	O
produced	O
adaptive	O
wide-band	O
speech	O
codec	O
.	O
</s>
<s>
It	O
is	O
used	O
by	O
Microsoft	B-Protocol
Office	I-Protocol
Communications	I-Protocol
Server	I-Protocol
(	O
OCS	O
)	O
and	O
the	O
related	O
OCS	O
clients	O
(	O
Microsoft	B-Protocol
Office	I-Protocol
Communicator	I-Protocol
,	O
and	O
Microsoft	O
Live	O
Meeting	O
Console	O
)	O
.	O
</s>
<s>
RTAudio	B-Algorithm
was	O
designed	O
for	O
real-time	O
two-way	O
Voice	B-Application
over	I-Application
IP	I-Application
(	O
VoIP	B-Application
)	O
applications	O
.	O
</s>
<s>
RTAudio	B-Algorithm
is	O
the	O
preferred	O
Microsoft	O
Real-Time	O
audio	O
codec	O
,	O
and	O
is	O
the	O
default	O
voice	O
codec	O
for	O
Microsoft	O
’s	O
Unified	O
Communications	O
platforms	O
.	O
</s>
<s>
The	O
RTAudio	B-Algorithm
encoder	O
is	O
capable	O
of	O
encoding	O
single-channel	O
(	O
mono	O
)	O
,	O
16	O
bit	O
per	O
sample	O
audio	O
signals	O
.	O
</s>
<s>
The	O
RTAudio	B-Algorithm
decoder	O
has	O
a	O
built-in	O
jitter	O
control	O
module	O
as	O
well	O
as	O
an	O
error	O
concealment	O
module	O
.	O
</s>
<s>
RTAudio	B-Algorithm
is	O
a	O
proprietary	O
codec	O
.	O
</s>
<s>
Like	O
RTVideo	B-Device
,	O
this	O
protocol	O
can	O
also	O
be	O
licensed	O
from	O
Microsoft	O
.	O
</s>
