Hi,

My comments embedded.

Regards
Mohammed Chalil

-----Original Message-----
From: Himachandra Chebrolu [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 28, 2003 8:07 AM
To: [EMAIL PROTECTED]
Subject: [MP3 ENCODER] Filter bank -MP3


Hello!
I've tried to debug my filterbank in two ways,but i
could'nt understand what went wrong.
(i)I put a sinusoid tone of frequency 3000 into my
filterbank algorithm and expected to see the energy in
the 2 or 3 band but strangely I see energy in all the
bands.

- I don't have any clue, sorry.
 
(ii) I took 32 input samples ,did the analysis
filtering ,then i had 32 samples each sample
corresponding to a subband,and I passed it directly
through the synthesis part,but I could'nt get back the
original.

- Good experiment. Filter bank is process is lossy, we can't regenerate the
signal back from filter outputs.
In literature the error is specified as 0.07dB, if my memory is correct.

Can anybody tell me what is happening.

Thanks in advance.
-Hima.

=====
Himachandra Chebrolu
University Of Kentucky
Lexington,KY-40506
--------------------------------------
"Don't go through life
        but grow through life..."
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