<s>
CereProc	B-Application
(	O
)	O
is	O
a	O
speech	B-Application
synthesis	I-Application
company	O
based	O
in	O
Edinburgh	O
,	O
Scotland	O
,	O
founded	O
in	O
2005	O
.	O
</s>
<s>
The	O
company	O
specialises	O
in	O
creating	O
natural	O
and	O
expressive-sounding	O
text	B-Application
to	I-Application
speech	I-Application
voices	O
,	O
synthesis	O
voices	O
with	O
regional	O
accents	O
,	O
and	O
in	O
voice	O
cloning	O
.	O
</s>
<s>
CereProc	B-Application
creates	O
voices	O
using	O
two	O
different	O
voice-building	O
technologies	O
:	O
unit	O
selection	O
synthesis	O
and	O
parametric	O
modelling	O
.	O
</s>
<s>
CereProc	B-Application
's	O
unit	O
selection	O
voices	O
are	O
built	O
from	O
large	O
databases	O
of	O
recorded	O
speech	O
.	O
</s>
<s>
During	O
database	O
creation	O
,	O
each	O
recorded	O
utterance	O
is	O
segmented	O
into	O
some	O
or	O
all	O
of	O
the	O
following	O
:	O
individual	O
phones	O
,	O
syllables	B-General_Concept
,	O
morphemes	O
,	O
words	O
,	O
phrases	O
,	O
and	O
sentences	O
.	O
</s>
<s>
The	O
division	O
into	O
segments	O
is	O
done	O
using	O
a	O
specially	O
modified	O
speech	B-Application
recogniser	I-Application
.	O
</s>
<s>
An	O
index	B-Data_Structure
of	O
the	O
units	O
in	O
the	O
speech	O
database	O
is	O
then	O
created	O
based	O
on	O
the	O
segmentation	O
and	O
acoustic	O
parameters	O
like	O
the	O
fundamental	O
frequency	O
(	O
pitch	O
)	O
,	O
duration	O
,	O
position	O
in	O
the	O
syllable	B-General_Concept
,	O
and	O
neighbouring	O
phones	O
.	O
</s>
<s>
At	B-Library
runtime	I-Library
,	O
the	O
desired	O
target	O
utterance	O
is	O
created	O
by	O
determining	O
the	O
best	O
chain	O
of	O
candidate	O
units	O
from	O
the	O
database	O
(	O
unit	O
selection	O
)	O
.	O
</s>
<s>
Unit	O
selection	O
provides	O
the	O
greatest	O
naturalness	O
,	O
because	O
it	O
applies	O
digital	B-General_Concept
signal	I-General_Concept
processing	I-General_Concept
(	O
DSP	O
)	O
to	O
the	O
recorded	O
speech	O
only	O
at	O
concatenation	O
points	O
.	O
</s>
<s>
CereProc	B-Application
's	O
parametric	O
voices	O
produce	O
speech	B-Application
synthesis	I-Application
based	O
on	O
statistical	O
modelling	O
methodologies	O
.	O
</s>
<s>
Speech	O
waveforms	O
are	O
generated	O
from	O
these	O
parameters	O
using	O
a	O
vocoder	B-Application
.	O
</s>
<s>
CereProc	B-Application
has	O
58	O
generally	O
available	O
voices	O
that	O
speak	O
23	O
languages	O
in	O
a	O
number	O
of	O
different	O
regional	O
accents	O
:	O
</s>
<s>
In	O
2009	O
,	O
film	O
critic	O
Roger	O
Ebert	O
employed	O
CereProc	B-Application
to	O
create	O
a	O
synthetic	O
version	O
of	O
his	O
voice	O
.	O
</s>
<s>
CereProc	B-Application
mined	O
tapes	O
and	O
DVD	O
commentaries	O
featuring	O
Ebert	O
's	O
voice	O
to	O
create	O
a	O
text-to-speech	B-Application
voice	O
that	O
sounded	O
more	O
like	O
his	O
own	O
.	O
</s>
<s>
NFL	O
player	O
Steve	O
Gleason	O
had	O
his	O
voice	O
cloned	O
by	O
CereProc	B-Application
following	O
his	O
diagnosis	O
with	O
MND	O
.	O
</s>
<s>
Gleason	O
appeared	O
in	O
Microsoft	O
's	O
Super	O
Bowl	O
XLVIII	O
commercial	O
praising	O
the	O
power	O
of	O
technology	O
,	O
using	O
his	O
synthetic	B-Application
voice	I-Application
to	O
narrate	O
.	O
</s>
<s>
CereProc	B-Application
voice	O
cloning	O
technology	O
is	O
currently	O
being	O
used	O
in	O
the	O
UK	O
by	O
people	O
with	O
MND	O
,	O
to	O
create	O
synthesis	O
voices	O
before	O
they	O
lose	O
the	O
power	O
of	O
speech	O
.	O
</s>
<s>
CereProc	B-Application
voices	O
can	O
be	O
deployed	O
on	O
different	O
operating	B-General_Concept
systems	I-General_Concept
and	O
on	O
different	O
types	O
of	O
devices	O
.	O
</s>
<s>
CereProc	B-Application
desktop	O
voices	O
are	O
compatible	O
with	O
Microsoft	B-Application
Windows	I-Application
and	O
Apple	B-Operating_System
Mac	I-Operating_System
OS	I-Operating_System
X	I-Operating_System
.	O
</s>
<s>
CereProc	B-Application
's	O
client/server	B-Operating_System
system	O
cServer	O
,	O
aimed	O
principally	O
at	O
the	O
corporate	O
IVR	O
market	O
,	O
can	O
be	O
run	O
on	O
Windows	O
and	O
Linux	B-Application
.	O
</s>
<s>
CereProc	B-Application
Mobile	O
voices	O
can	O
be	O
deployed	O
on	O
Android	B-Application
and	O
Apple	O
iOS	B-Application
.	O
</s>
<s>
The	O
SDK	O
is	O
available	O
for	O
Android	B-Application
,	O
Linux	B-Application
,	O
MacOS	B-Operating_System
,	O
iOS	B-Application
,	O
and	O
Windows	O
.	O
</s>
