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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: What's the problem with "brick wall" filtering? posted by andy19191 on December 2, 2006 at 13:11:59:
Andy, please study the problem first. We have tried for 30 years to make a 'perfect' low pass filter. It is almost impossible, by definition. If you just roll off quickly, you get 'ringing' except that each 'ring' is a different frequency. If you phase correct, you get 'preshoot' where some of the signal comes BEFORE the real signal How about that for sonic correctness?
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- Re: What's the problem with "brick wall" filtering? - john curl 15:48:38 12/02/06 (0)
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