> Date: Wed, 15 Dec 1999 23:20:03 -0800
> From: Monty <[EMAIL PROTECTED]>
>
> > a frequency resolution of only 22050/576 = 38Hz. So the accuracy of the first
> > few coefficients is questionable, and a highpass filter at 50Hz would
> > only effect the first 2 MDCT coefficients. I dont know how big a problem
> > this is, but a true 50Hz filter would need to be done before
> > calling lame, using a much larger fft/mdct window.
>
> No practical filter, digital included, will have a cutoff that sharp. It
> *could*, but that causes all sorts of other problems (like serious ringing
> throughout the spectrum).
>
> Monty
>
Are there any rules of thumb for an appropriate frequency range that
the filter should act on?
Mark
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