Re: [MP3 ENCODER] filter options (and several questions)

[Monty]

> 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

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