<s>
FreqTweak	B-Language
is	O
an	O
open-source	B-Application
tool	O
for	O
real-time	O
audio	O
spectral	O
manipulation	O
and	O
display	O
.	O
</s>
<s>
It	O
is	O
free	B-Application
software	I-Application
,	O
available	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
FreqTweak	B-Language
can	O
(	O
and	O
is	O
supposed	O
to	O
)	O
be	O
connected	O
to	O
other	O
audio	O
software	O
using	O
the	O
JACK	B-Application
Audio	I-Application
Connection	I-Application
Kit	I-Application
.	O
</s>
<s>
FreqTweak	B-Language
is	O
FFT-based	O
,	O
and	O
supports	O
up	O
to	O
four	O
channels	O
.	O
</s>
<s>
An	O
FFT	O
analysis	O
is	O
applied	O
to	O
each	O
audio	O
channel	O
,	O
and	O
every	O
individual	O
frequency	B-Algorithm
band	I-Algorithm
can	O
have	O
a	O
different	O
effect	O
applied	O
to	O
it	O
.	O
</s>
