<s>
Cantor	B-Application
was	O
a	O
vocal	O
singing	B-Application
synthesizer	I-Application
software	O
released	O
four	O
months	O
after	O
the	O
original	O
release	O
of	O
Vocaloid	B-Application
by	O
the	O
company	O
VirSyn	O
,	O
and	O
was	O
based	O
on	O
the	O
same	O
idea	O
of	O
synthesizing	O
the	O
human	O
voice	O
.	O
</s>
<s>
Cantor	B-Application
2	O
boasted	O
a	O
variety	O
of	O
voices	O
from	O
near-realistic	O
sounding	O
ones	O
to	O
highly	O
expressive	O
vocals	O
and	O
robotic	O
voices	O
.	O
</s>
<s>
Cantor	B-Application
was	O
not	O
based	O
on	O
singing	O
samples	O
,	O
and	O
its	O
results	O
were	O
reproduced	O
by	O
a	O
morphing	O
additive	O
synthesis	O
engine	O
derived	O
from	O
VirSyn	O
's	O
Cube	O
software	O
synthesizer	O
.	O
</s>
<s>
It	O
is	O
used	O
to	O
generate	O
the	O
39	O
phonemes	B-Language
that	O
VirSyn	O
used	O
to	O
reproduce	O
English	O
speech	O
or	O
singing	O
.	O
</s>
<s>
Each	O
phoneme	B-Language
is	O
created	O
by	O
passing	O
an	O
additive	O
sound	O
source	O
through	O
a	O
formant	O
filter	O
,	O
which	O
morphs	O
between	O
a	O
start	O
and	O
an	O
end	O
state	O
.	O
</s>
<s>
Cantor	B-Application
2	O
offered	O
20	O
ready-to-use	O
vocals	O
in	O
English	O
and	O
German	O
and	O
added	O
many	O
new	O
voices	O
on	O
top	O
of	O
the	O
original	O
Cantor	B-Application
software	O
,	O
bringing	O
the	O
total	O
to	O
50	O
voices	O
.	O
</s>
<s>
The	O
concept	O
of	O
voiced	O
and	O
unvoiced	O
sounds	O
was	O
complicated	O
but	O
was	O
used	O
to	O
describe	O
how	O
Cantor	B-Application
was	O
able	O
to	O
master	O
its	O
language	O
capabilities	O
of	O
human	O
speech	O
.	O
</s>
<s>
For	O
those	O
who	O
had	O
used	O
other	O
VirSyn	O
's	O
software	O
,	O
Cantor	B-Application
was	O
familiar	O
grounds	O
and	O
bore	O
many	O
things	O
in	O
common	O
with	O
past	O
synthesizers	O
VirSyn	O
had	O
produced	O
.	O
</s>
<s>
Although	O
it	O
was	O
complex	O
,	O
Cantor	B-Application
was	O
considered	O
a	O
simple	O
design	O
overall	O
and	O
relatively	O
easy	O
to	O
use	O
for	O
its	O
purposes	O
.	O
</s>
<s>
It	O
hosted	O
VST	B-Application
,	O
AU	B-Operating_System
and	O
RTAS	B-Operating_System
capabilities	O
.	O
</s>
<s>
By	O
Cantor	B-Application
2	O
's	O
release	O
,	O
midi	O
file	O
format	O
was	O
fully	O
functional	O
.	O
</s>
<s>
It	O
was	O
able	O
to	O
work	O
as	O
a	O
standalone	B-Operating_System
software	I-Operating_System
or	O
as	O
a	O
plugin	O
;	O
there	O
were	O
slight	O
differences	O
between	O
the	O
software	O
for	O
both	O
.	O
</s>
<s>
It	O
worked	O
as	O
a	O
standalone	B-Operating_System
software	I-Operating_System
or	O
plug-in	O
and	O
supported	O
ReWire	B-Architecture
.	O
</s>
<s>
Cantor	B-Application
was	O
released	O
after	O
the	O
original	O
Vocaloid	B-Application
engine	O
and	O
was	O
considered	O
a	O
suitable	O
software	O
to	O
rival	O
Yamaha	O
's	O
Vocaloid	B-Application
engine	O
,	O
then	O
only	O
known	O
in	O
the	O
western	O
hemisphere	O
by	O
the	O
Vocaloids	B-Application
'	O
Leon	O
 '	O
,	O
'	O
Lola	O
 '	O
and	O
'	O
Miriam	O
 '	O
.	O
</s>
<s>
Cantor	B-Application
reached	O
a	O
level	O
of	O
vocal	O
synthesising	O
that	O
had	O
not	O
yet	O
been	O
reached	O
.	O
</s>
<s>
It	O
required	O
purchasing	O
an	O
elicence	B-Device
dongle	I-Device
to	O
download	O
the	O
demo	O
,	O
as	O
well	O
as	O
the	O
full	O
software	O
if	O
it	O
was	O
purchased	O
electronically	O
.	O
</s>
<s>
The	O
final	O
version	O
,	O
Cantor	B-Application
2.1	O
was	O
released	O
on	O
February	O
6	O
,	O
2007	O
.	O
</s>
<s>
The	O
album	O
Light	O
+	O
Shade	O
by	O
Mike	O
Oldfield	O
featured	O
both	O
the	O
Vocaloid	B-Application
'	O
Miriam	O
 '	O
singing	O
alongside	O
the	O
Cantor	B-Application
software	O
in	O
the	O
song	O
"	O
Tears	O
of	O
an	O
Angel.	O
"	O
</s>
<s>
Despite	O
being	O
a	O
rival	O
program	O
to	O
Vocaloid	B-Application
,	O
it	O
can	O
be	O
purchased	O
on	O
Crypton	O
Future	O
Media	O
's	O
website	O
.	O
</s>
<s>
For	O
the	O
capabilities	O
of	O
what	O
the	O
software	O
could	O
do	O
,	O
the	O
Cantor	B-Application
software	O
was	O
dubbed	O
"	O
the	O
future	O
of	O
music.	O
"	O
</s>
<s>
At	O
the	O
time	O
of	O
its	O
release	O
,	O
Cantor	B-Application
2	O
was	O
considered	O
ground	O
breaking	O
technology	O
.	O
</s>
<s>
The	O
biggest	O
criticism	O
toward	O
the	O
software	O
itself	O
was	O
its	O
unintelligible	O
results	O
despite	O
being	O
a	O
powerful	O
tool	O
and	O
though	O
improvements	O
were	O
made	O
between	O
Cantor	B-Application
and	O
Cantor	B-Application
2	O
.	O
</s>
<s>
It	O
still	O
lacked	O
clarity	O
which	O
put	O
it	O
at	O
a	O
disadvantage	O
against	O
the	O
more	O
realistic	O
sound	O
of	O
Vocaloid	B-Application
.	O
</s>
<s>
Cantor	B-Application
was	O
able	O
to	O
create	O
a	O
playground	O
for	O
experimental	O
vocal	O
sounds	O
and	O
give	O
composers	O
a	O
tool	O
for	O
high	O
levels	O
of	O
vocal	O
affects	O
and	O
sounds	O
.	O
</s>
<s>
However	O
,	O
Cantor	B-Application
and	O
Vocaloid	B-Application
were	O
based	O
on	O
the	O
same	O
concepts	O
and	O
ideas	O
;	O
they	O
shared	O
a	O
number	O
of	O
similar	O
designs	O
.	O
</s>
<s>
It	O
was	O
unable	O
to	O
escape	O
comparisons	O
between	O
itself	O
and	O
Vocaloid	B-Application
,	O
although	O
some	O
musicians	O
used	O
both	O
software	O
at	O
the	O
time	O
.	O
</s>
