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[Discuss-gnuradio] Removing DC offset

From: Patrick Strasser
Subject: [Discuss-gnuradio] Removing DC offset
Date: Fri, 24 Feb 2006 00:01:41 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050602 Thunderbird/1.0.2 Mnenhy/


I'm playing around with audio as source/sink (hope to produce some nice,
sensible and usefull examples), but I'm stuck with a problem:

What is the best way to remove DC offset?
FIR seems not sensible, as you need a huge number of coefficients to get
 steep slopes.
Is there an easy way with IIR? (I'm not familiar with IIR)

Engineers motto: cheap, good, fast: choose any two
Patrick Strasser <patrick dot strasser at  tugraz dot at>
Student of Telematik, Techn. University Graz, Austria

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