<s>
PSOLA	B-Application
(	O
Pitch	O
Synchronous	O
Overlap	O
and	O
Add	O
)	O
is	O
a	O
digital	O
signal	O
processing	O
technique	O
used	O
for	O
speech	B-Algorithm
processing	I-Algorithm
and	O
more	O
specifically	O
speech	B-Application
synthesis	I-Application
.	O
</s>
<s>
PSOLA	B-Application
works	O
by	O
dividing	O
the	O
speech	O
waveform	O
in	O
small	O
overlapping	O
segments	O
.	O
</s>
<s>
The	O
segments	O
are	O
then	O
combined	O
using	O
the	O
overlap	B-Algorithm
add	I-Algorithm
technique	O
.	O
</s>
<s>
PSOLA	B-Application
can	O
be	O
used	O
to	O
change	O
the	O
prosody	O
of	O
a	O
speech	O
signal	O
.	O
</s>
