Quote:
Originally Posted by virtualaudio  A as demonstrated by Fader8 in his informative website: Index
The pass filters on the Waves Renaissance EQ have an unusual and significant pass band bump beyond q = 1, which would not be ideal for DC filtering (see above link). |
The measurements were done at 96kHZ,24 bit. With low-pass filter, graph was also showing some pass-band (narrow) above 30kHZ. SO, what is that? OK, if its 96kHZ, it will not alias and we cant perceive that. But, what would happen if sampling rate is 44.1k or 48 k? Would that odd hi-freq pass band be on the same place in frequency range? Or worse, lower? Would it be filtered out in antialiasing process? OR, MAYBE as some digital expert guy said, its misunderstood that EQ will work better on sampling rates high as 88.2k or 96k, because it needs to be more precise, so those bumps wouldnt be present at lower sampling rates? This is of course case-by-case thing, some eq plugs can handle , some dont...