<s>
AVT	B-Algorithm
Statistical	I-Algorithm
filtering	I-Algorithm
algorithm	I-Algorithm
is	O
an	O
approach	O
to	O
improving	O
quality	O
of	O
raw	O
data	O
collected	O
from	O
various	O
sources	O
.	O
</s>
<s>
Filter	O
out	O
noise	O
from	O
sound	O
sources	O
where	O
all	O
other	O
filtering	O
methods	O
(	O
Low-pass	B-Algorithm
filter	I-Algorithm
,	O
High-pass	O
filter	O
,	O
Band-pass	O
filter	O
,	O
Digital	O
filter	O
)	O
fail	O
.	O
</s>
