<s>
G.719	B-Algorithm
is	O
an	O
ITU-T	O
standard	O
audio	O
coding	O
format	O
providing	O
high	O
quality	O
,	O
moderate	O
bit	O
rate	O
(	O
32	O
to	O
128	O
kbit/s	O
)	O
wideband	B-Algorithm
(	O
20Hz	O
-	O
20kHz	O
audio	O
bandwidth	O
,	O
48kHz	O
audio	O
sample	O
rate	O
)	O
audio	O
coding	O
at	O
low	O
computational	O
load	O
.	O
</s>
<s>
G.719	B-Algorithm
is	O
based	O
on	O
modified	O
discrete	O
cosine	O
transform	O
(	O
MDCT	O
)	O
coding	O
.	O
</s>
<s>
It	O
incorporates	O
elements	O
of	O
Polycom	O
's	O
Siren22	B-Algorithm
codec	O
(	O
22kHz	O
)	O
and	O
Ericsson	O
codec	O
technology	O
,	O
as	O
well	O
as	O
Polycom	O
's	O
Siren7	O
and	O
Siren14	O
codecs	O
(	O
G.722.1	O
and	O
G.722.1	O
Annex	O
C	O
)	O
,	O
which	O
have	O
been	O
used	O
in	O
videoconferencing	O
systems	O
for	O
many	O
years	O
.	O
</s>
<s>
As	O
ITU-T	O
Recommendation	O
G.719	B-Algorithm
,	O
it	O
was	O
approved	O
on	O
June	O
13	O
,	O
2008	O
.	O
</s>
<s>
G.719	B-Algorithm
is	O
optimized	O
for	O
both	O
speech	O
and	O
music	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
nominal	O
bit	O
rates	O
of	O
32	O
,	O
48	O
and	O
64	O
kbit/s	O
,	O
the	O
G.719	B-Algorithm
codec	O
has	O
an	O
inherent	O
feature	O
of	O
flexible	O
rate	O
selection	O
.	O
</s>
<s>
Amendment	O
1	O
of	O
the	O
ITU-T	O
G.719	B-Algorithm
specification	O
defined	O
the	O
use	O
of	O
the	O
ISO	O
base	O
media	O
file	O
format	O
(	O
ISO/IEC	O
14496-12	O
a.k.a.	O
</s>
<s>
MPEG-4	B-Algorithm
Part	O
12	O
)	O
as	O
container	O
for	O
the	O
G.719	B-Algorithm
bitstream	O
.	O
</s>
<s>
It	O
also	O
defined	O
stereo	O
and	O
multichannel	O
use	O
of	O
G.719	B-Algorithm
bitstreams	O
in	O
the	O
ISO	O
base	O
media	O
file	O
format	O
.	O
</s>
<s>
Thus	O
,	O
media	O
file	O
formats	O
such	O
as	O
MP4	O
(	O
audio/mp4	O
or	O
video/mp4	O
)	O
and	O
3GP	O
(	O
audio/3GPP	O
and	O
video/3GPP	O
)	O
can	O
contain	O
G.719-encoded	O
audio	O
.	O
</s>
<s>
G.719	B-Algorithm
is	O
licensed	O
by	O
Polycom	O
,	O
Inc	O
.	O
and	O
by	O
Ericsson	O
;	O
both	O
licenses	O
are	O
necessary	O
for	O
use	O
.	O
</s>
