<s>
ECMA-407	B-Algorithm
is	O
the	O
world	O
's	O
first	O
approved	O
international	O
3D	O
audio	O
standard	O
for	O
the	O
unrestricted	O
delivery	O
of	O
channel-based	O
,	O
object-based	O
and	O
scene-based	O
signals	O
up	O
to	O
NHK	O
22.2	O
developed	O
by	O
Ecma	O
TC32-TG22	O
in	O
close	O
cooperation	O
with	O
France	O
Télévisions	O
,	O
Radio	O
France	O
,	O
École	O
Polytechnique	O
Fédérale	O
de	O
Lausanne	O
and	O
McGill	O
University	O
in	O
Montreal	O
.	O
</s>
<s>
ECMA-407	B-Algorithm
uses	O
inverse	O
coding	O
in	O
the	O
time	O
domain	O
,	O
an	O
invention	O
by	O
the	O
Swiss-Austrian	O
mathematician	O
Clemens	O
Par	O
,	O
and	O
shows	O
lowest	O
spatial	O
bitrates	O
ever	O
achieved	O
(	O
for	O
instance	O
,	O
several	O
minutes	O
of	O
NHK	O
22.2	O
may	O
be	O
represented	O
by	O
an	O
encapsulated	O
data	O
package	O
of	O
100	O
bytes	O
)	O
.	O
</s>
<s>
S5	O
(	O
"	O
Scalable	O
Sparse	O
Spatial	O
Sound	O
System	O
"	O
)	O
is	O
a	O
scalable	O
multichannel	O
coding	O
system	O
,	O
which	O
may	O
incorporate	O
a	O
wide	O
range	O
of	O
base	O
audio	B-Algorithm
codecs	I-Algorithm
,	O
preferably	O
with	O
additional	O
encapsulation	O
capacity	O
for	O
external	O
data	O
,	O
e.g.	O
</s>
<s>
MPEG-4	B-Algorithm
or	O
MPEG-D	O
.	O
</s>
<s>
Compatible	O
bit	O
stream	O
syntax	O
may	O
thus	O
be	O
maintained	O
,	O
and	O
ECMA-407	B-Algorithm
becomes	O
“	O
invisible	O
”	O
during	O
transmission	O
.	O
</s>
<s>
ECMA-407	B-Algorithm
specifies	O
the	O
base	O
S5	O
encoder/decoder	O
and	O
their	O
interfaces	O
only	O
.	O
</s>
<s>
ECMA-407	B-Algorithm
specifies	O
the	O
base	O
S5	O
encoder	O
and	O
decoder	O
in	O
terms	O
of	O
configuration	O
data	O
,	O
downmix	O
,	O
inverse	O
coding	O
parameter	O
data	O
and	O
upmix	O
.	O
</s>
<s>
ECMA-407	B-Algorithm
uses	O
modern	O
tools	O
such	O
as	O
loudness	O
according	O
to	O
ITU-R	O
or	O
the	O
European	O
Broadcasting	O
Union	O
and	O
electronic	O
fingerprint	O
that	O
allow	O
internal	O
and	O
external	O
synchronization	O
,	O
for	O
example	O
,	O
with	O
video	O
,	O
with	O
additional	O
services	O
or	O
with	O
"	O
second	O
screens	O
"	O
.	O
</s>
<s>
ECMA-407	B-Algorithm
was	O
first	O
implemented	O
by	O
Swissaudec	O
in	O
2014	O
in	O
co-operation	O
with	O
Marco	O
Mattavelli	O
's	O
research	O
group	O
at	O
École	O
Polytechnique	O
Fédérale	O
de	O
Lausanne	O
and	O
was	O
tuned	O
by	O
Swissaudec	O
and	O
Wieslaw	O
Woszczyk	O
’s	O
research	O
group	O
at	O
McGill	O
University	O
’s	O
“	O
Studio	O
22	O
”	O
.	O
</s>
<s>
Its	O
world	O
premiere	O
was	O
an	O
ECMA-407	B-Algorithm
satellite	O
test	O
carrier	O
,	O
which	O
was	O
established	O
in	O
cooperation	O
with	O
France	O
Télévisions	O
,	O
SES	O
,	O
Ecma	O
International	O
and	O
other	O
partners	O
for	O
the	O
"	O
Future	O
Zone	O
"	O
of	O
IBC	O
in	O
Amsterdam	O
in	O
September	O
2014	O
.	O
</s>
<s>
ECMA-407	B-Algorithm
attracted	O
more	O
than	O
1'500	O
broadcasting	O
experts	O
and	O
enjoyed	O
international	O
news	O
coverage	O
(	O
e.g.	O
</s>
