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Re: Pro 2 AD Conversion - why high pass at 30hz ?A DC term at the input to an A/D converter would cause earlier clipping for one polarity than the other, thus lower "clean" dynamic range than with a HPF inserted. I would expect most A/D to be HPF to block DC while perhaps much lower than 30 Hz, likewise I would expect most signal sources to be HPF and not put out DC.Agreed the advice sounds a little funny.. not ha ha funny, but why? funny. 30Hz seems a practical corner for a HPF, but why would they ever need DC response?JR
Re: Pro 2 AD Conversion - why high pass at 30hz ?
A DC term at the input to an A/D converter would cause earlier clipping for one polarity than the other, thus lower "clean" dynamic range than with a HPF inserted. I would expect most A/D to be HPF to block DC while perhaps much lower than 30 Hz, likewise I would expect most signal sources to be HPF and not put out DC.
Agreed the advice sounds a little funny.. not ha ha funny, but why? funny. 30Hz seems a practical corner for a HPF, but why would they ever need DC response?
JR
