<s>
Diamond	B-Application
Cut	I-Application
Audio	I-Application
Restoration	I-Application
Tools	I-Application
(	O
also	O
known	O
as	O
DC-Art	B-Application
and	O
Diamond	O
Cut	O
Audio	O
Lab	O
)	O
is	O
a	O
set	O
of	O
digital	B-Application
audio	I-Application
editor	I-Application
tools	O
from	O
Diamond	O
Cut	O
Productions	O
used	O
for	O
audio	O
restoration	O
,	O
record	O
restoration	O
,	O
sound	O
restoration	O
of	O
gramophone	O
records	O
and	O
other	O
audio	O
containing	O
media	O
.	O
</s>
<s>
Diamond	B-Application
Cut	I-Application
Audio	I-Application
Restoration	I-Application
Tools	I-Application
(	O
DC-Art	B-Application
)	O
was	O
originally	O
a	O
private	O
venture	O
by	O
R&D	O
engineer	O
Craig	O
Maier	O
and	O
software	O
engineer	O
Rick	O
Carlson	O
.	O
</s>
<s>
DC-Art	B-Application
was	O
developed	O
so	O
that	O
the	O
many	O
test	O
pressings	O
could	O
be	O
transferred	O
to	O
digital	O
tape	O
for	O
preservation	O
and	O
archival	O
purposes	O
.	O
</s>
<s>
In	O
1995	O
,	O
the	O
Diamond	B-Application
Cut	I-Application
Audio	I-Application
Restoration	I-Application
Tools	I-Application
(	O
DC-Art	B-Application
)	O
program	O
was	O
first	O
formally	O
introduced	O
into	O
the	O
commercial	O
marketplace	O
.	O
</s>
<s>
Since	O
then	O
DC-Art	B-Application
(	O
or	O
DC	O
for	O
short	O
)	O
has	O
been	O
used	O
throughout	O
the	O
world	O
for	O
not	O
only	O
musical	O
audio	O
restoration	O
applications	O
,	O
but	O
for	O
others	O
such	O
as	O
911	O
call	O
restoration	O
,	O
clarification	O
of	O
police	O
surveillance	O
recordings	O
,	O
cleanup	O
of	O
radio	O
broadcasts	O
for	O
release	O
on	O
CD	O
,	O
restoration	O
of	O
historic	O
spoken	O
word	O
recordings	O
,	O
cockpit	O
voice	O
recording	O
restoration	O
among	O
others	O
.	O
</s>
<s>
Unlike	O
other	O
programs	O
in	O
the	O
field	O
of	O
record	O
and	O
audio	O
restoration	O
,	O
DC-Art	B-Application
has	O
undergone	O
regular	O
and	O
significant	O
modifications	O
on	O
an	O
almost	O
annual	O
basis	O
.	O
</s>
<s>
DC-Art	B-Application
was	O
the	O
first	O
of	O
the	O
officially	O
released	O
audio	O
restoration	O
programs	O
from	O
Diamond	O
Cut	O
Productions	O
in	O
April	O
1995	O
and	O
featured	O
a	O
16-bit	B-Device
processing	O
architecture	O
for	O
the	O
various	O
audio	O
processing	O
algorithms	O
.	O
</s>
<s>
DC-Art	B-Application
V1.0	O
was	O
made	O
available	O
to	O
the	O
public	O
by	O
July	O
1996	O
and	O
later	O
through	O
Tracer	O
Technologies	O
,	O
Inc	O
.	O
in	O
order	O
to	O
facilitate	O
the	O
marketing	O
and	O
distribution	O
of	O
the	O
software	O
.	O
</s>
<s>
Version	O
2.0	O
of	O
DC-Art	B-Application
was	O
released	O
later	O
in	O
December	O
1997	O
and	O
included	O
innovative	O
real-time	O
filter	O
previews	O
.	O
</s>
<s>
DC-Art	B-Application
32	O
was	O
released	O
in	O
1998	O
and	O
also	O
referred	O
to	O
as	O
"	O
DC-Art	B-Application
Version	O
3.0	O
"	O
.	O
</s>
<s>
In	O
contrast	O
to	O
the	O
earlier	O
release	O
,	O
DC-Art	B-Application
32	O
used	O
a	O
32-bit	O
processing	O
architecture	O
to	O
improve	O
the	O
accuracy	O
of	O
the	O
various	O
audio	O
processing	O
algorithms	O
.	O
</s>
<s>
Unlike	O
other	O
audio-restoration	O
software	O
,	O
DC-Art	B-Application
32	O
also	O
introduced	O
a	O
novel	O
enhancement	O
processes	O
termed	O
the	O
Virtual	O
Valve	O
Amplifier	O
(	O
aka	O
.	O
</s>
<s>
DC-Art	B-Application
Millennium/Live	O
or	O
"	O
DC-Art	B-Application
Version	O
4.0	O
"	O
was	O
publicly	O
released	O
in	O
August	O
1999	O
.	O
</s>
<s>
Unlike	O
previous	O
versions	O
,	O
DC-Art	B-Application
Millennium	O
brought	O
with	O
it	O
a	O
new	O
level	O
of	O
performance	O
and	O
features	O
in	O
the	O
audio	O
restoration	O
and	O
enhancement	O
software	O
market	O
.	O
</s>
<s>
In	O
addition	O
,	O
DC-Art	B-Application
Millennium	O
boasted	O
over	O
15	O
real-time	O
tools	O
that	O
could	O
be	O
used	O
individually	O
or	O
in	O
combination	O
(	O
called	O
a	O
multi-filter	O
)	O
and	O
thus	O
setting	O
the	O
restoration	O
software	O
benchmark	O
for	O
its	O
time	O
.	O
</s>
<s>
In	O
August	O
2001	O
,	O
DC-Art	B-Application
Live	O
and	O
Millennium	O
were	O
up-dated	O
to	O
version	O
4.8	O
with	O
various	O
bug	B-Error_Name
fixes	O
and	O
the	O
addition	O
of	O
a	O
digital	O
high	O
resolution	O
VU	O
meter	O
.	O
</s>
<s>
DC-Enhance/MP3	O
was	O
released	O
in	O
February	O
2001	O
as	O
a	O
low	O
cost	O
product	O
for	O
improving	O
the	O
fidelity	O
of	O
MP3	B-Application
audio	I-Application
files	I-Application
.	O
</s>
<s>
Unlike	O
other	O
members	O
of	O
the	O
DC-Art	B-Application
family	O
DC-Enhance/MP3	O
did	O
not	O
include	O
any	O
tools	O
for	O
audio	O
restoration	O
,	O
rather	O
focusing	O
on	O
enhancement	O
of	O
bass	O
and	O
harmonic	O
attributes	O
of	O
already	O
digitised	O
audio	O
.	O
</s>
<s>
Due	O
to	O
the	O
limited	O
function	O
of	O
this	O
program	O
it	O
was	O
rapidly	O
superseded	O
by	O
other	O
DC-Art	B-Application
versions	O
which	O
included	O
MP3	B-Application
enhancement	O
as	O
a	O
part	O
of	O
the	O
multifilter	O
component	O
.	O
</s>
<s>
Previous	O
versions	O
of	O
DC-Art	B-Application
software	O
used	O
a	O
source	O
vs	O
destination	O
file	O
setup	O
termed	O
"	O
Classic	O
edit	O
mode	O
"	O
whereby	O
each	O
time	O
a	O
filter	O
was	O
applied	O
to	O
a	O
source	O
file	O
it	O
would	O
generate	O
a	O
new	O
,	O
altered	O
destination	O
file	O
tiled	O
within	O
the	O
same	O
window	O
.	O
</s>
<s>
Similarly	O
,	O
a	O
weighting	O
function	O
was	O
added	O
to	O
the	O
median	B-Algorithm
filter	I-Algorithm
which	O
had	O
advantages	O
for	O
both	O
de-crackling	O
a	O
recording	O
and	O
facilitating	O
speech	O
clarification	O
by	O
changing	O
the	O
"	O
timbre	O
"	O
of	O
the	O
sound	O
often	O
required	O
with	O
forensic	O
audio	O
recordings	O
.	O
</s>
<s>
In	O
2006	O
several	O
of	O
the	O
audio	O
enhancement	O
tools	O
previously	O
only	O
available	O
in	O
the	O
DC-Art	B-Application
line	O
were	O
trialed	O
and	O
released	O
as	O
VST	B-Application
plugin	I-Application
devices	O
for	O
use	O
in	O
other	O
VST	B-Application
plugin	I-Application
compatible	O
audio	O
software	O
.	O
</s>
<s>
These	O
plugins	O
included	O
a	O
suite	O
of	O
powerful	O
digital	B-General_Concept
signal	I-General_Concept
processing	I-General_Concept
(	O
DSP	O
)	O
audio	O
tools	O
including	O
the	O
Automatic	O
Frequency	O
Domain	O
Filter	O
(	O
AFDF	O
)	O
as	O
well	O
as	O
the	O
Virtual	O
Valve	O
Amplifier	O
(	O
VVA	O
)	O
.	O
</s>
<s>
Unlike	O
other	O
filters	O
offered	O
in	O
the	O
DC-Art	B-Application
range	O
,	O
the	O
AFDF	O
is	O
optimized	O
for	O
Forensics	O
recordings	O
and	O
not	O
“	O
High	O
Fidelity	O
”	O
files	O
.	O
</s>
