<s>
Real-Time	B-General_Concept
AudioSuite	O
(	O
RTAS	B-Operating_System
)	O
is	O
a	O
format	O
of	O
audio	B-Application
plug-in	I-Application
developed	O
by	O
Digidesign	O
,	O
currently	O
Avid	O
Technology	O
for	O
their	O
Pro	B-Application
Tools	I-Application
LE	O
and	O
Pro	B-Application
Tools	I-Application
M-Powered	O
systems	O
,	O
although	O
they	O
can	O
be	O
run	O
on	O
Pro	B-Application
Tools	I-Application
HD	O
and	O
Pro	B-Application
Tools	I-Application
TDM	O
systems	O
.	O
</s>
<s>
RTAS	B-Operating_System
plug-ins	B-Application
use	O
the	O
processing	O
power	O
of	O
the	O
host	O
computer	O
rather	O
than	O
DSP	O
cards	O
used	O
in	O
the	O
Pro	B-Application
Tools	I-Application
HD	O
systems	O
.	O
</s>
<s>
As	O
the	O
name	O
suggests	O
,	O
the	O
plug-in	B-Application
architecture	O
is	O
designed	O
to	O
be	O
run	O
in	O
real-time	B-General_Concept
,	O
mimicking	O
hardware	O
inserts	O
on	O
traditional	O
mixing	O
console	O
.	O
</s>
<s>
This	O
is	O
in	O
contrast	O
to	O
rendering	O
files	O
out	O
of	O
time	O
with	O
effects	O
applied	O
directly	O
to	O
the	O
audio	O
,	O
which	O
in	O
Pro	B-Application
Tools	I-Application
is	O
facilitated	O
by	O
AudioSuite	O
Plug-ins	B-Application
.	O
</s>
<s>
Avid	O
's	O
AAX	O
format	O
,	O
which	O
runs	O
on	O
both	O
native	O
CPU	O
and	O
Pro	B-Application
Tools	I-Application
HDX	O
DSP	O
,	O
is	O
the	O
replacement	O
for	O
RTAS	B-Operating_System
.	O
</s>
<s>
On	O
April	O
7	O
,	O
2013	O
,	O
Avid	O
announced	O
Pro	B-Application
Tools	I-Application
11	O
.	O
</s>
<s>
From	O
this	O
version	O
forward	O
,	O
Avid	O
has	O
made	O
the	O
AAX	O
plug-in	B-Application
the	O
only	O
format	O
supported	O
by	O
Pro	B-Application
Tools	I-Application
.	O
</s>
<s>
At	O
launch	O
,	O
many	O
third-party	O
plug-in	B-Application
developers	O
have	O
yet	O
to	O
port	O
their	O
software	O
to	O
the	O
new	O
AAX	O
format	O
,	O
so	O
Avid	O
will	O
sell	O
Pro	B-Application
Tools	I-Application
11	O
with	O
both	O
an	O
11	O
and	O
10	O
license	O
,	O
allowing	O
users	O
to	O
run	O
Pro	B-Application
Tools	I-Application
10.3.8	O
,	O
which	O
is	O
the	O
last	O
version	O
that	O
will	O
support	O
RTAS	B-Operating_System
.	O
</s>
<s>
Most	O
plug-ins	B-Application
employ	O
some	O
form	O
of	O
copy	B-Application
protection	I-Application
,	O
notably	O
the	O
PACE	O
iLok	O
dongle	B-Device
.	O
</s>
<s>
Though	O
there	O
are	O
some	O
plug-ins	B-Application
available	O
free	O
of	O
charge	O
,	O
there	O
is	O
no	O
accompanying	O
source	O
code	O
or	O
programming	O
documentation	O
available	O
to	O
the	O
general	O
public	O
.	O
</s>
<s>
There	O
are	O
terms	O
of	O
disclosure	O
on	O
releasing	O
information	O
about	O
Avid	O
's	O
development	O
materials	O
,	O
making	O
official	O
RTAS	B-Operating_System
development	O
incompatible	O
with	O
open-source	B-Application
software	I-Application
.	O
</s>
<s>
FXpansion	O
Audio	O
produces	O
a	O
VST	B-Application
to	O
RTAS	B-Operating_System
converter	O
which	O
allows	O
the	O
use	O
of	O
plug-ins	B-Application
developed	O
under	O
Steinberg	O
's	O
development	O
environment	O
inside	O
of	O
Pro	B-Application
Tools	I-Application
,	O
expanding	O
the	O
DAW	B-General_Concept
's	I-General_Concept
processing	O
capabilities	O
.	O
</s>
<s>
FXpansion	O
has	O
stated	O
that	O
an	O
RTAS	B-Operating_System
to	O
VST	B-Application
converter	O
can	O
not	O
happen	O
"	O
for	O
both	O
technical	O
and	O
legal	O
reasons.	O
"	O
</s>
