<s>
Praat	B-Language
(	O
;	O
,	O
"	O
talk	O
"	O
)	O
is	O
a	O
free	B-Application
computer	I-Application
software	I-Application
package	O
for	O
speech	O
analysis	O
in	O
phonetics	O
.	O
</s>
<s>
It	O
can	O
run	O
on	O
a	O
wide	O
range	O
of	O
operating	B-General_Concept
systems	I-General_Concept
,	O
including	O
various	O
versions	O
of	O
Unix	B-Application
,	O
Linux	B-Application
,	O
Mac	B-Application
and	O
Microsoft	B-Application
Windows	I-Application
(	O
2000	O
,	O
XP	O
,	O
Vista	O
,	O
7	O
,	O
8	O
,	O
10	O
)	O
.	O
</s>
<s>
The	O
program	O
supports	O
speech	B-Application
synthesis	I-Application
,	O
including	O
articulatory	B-Application
synthesis	I-Application
.	O
</s>
<s>
Version	O
Date	O
Main	O
3.1	O
5	O
December	O
1995	O
4.0	O
15	O
October	O
2001	O
4.1	O
5	O
June	O
2003	O
Mac	B-Application
OS	I-Application
X	O
edition	O
,	O
More	O
than	O
99	O
percent	O
of	O
the	O
source	O
code	O
distributed	O
under	O
the	O
General	B-License
Public	I-License
Licence	I-License
.	O
</s>
