So you need to make sure you have enough digital headroom to account for the boost of your specific transform (which may be more or less than 10dB). If you're sure you've got enough digital headroom you can uncheck it to get that 10dB back, but don't uncheck unless you're sure you've got enough headroom.Ī linkwitz transform often applies significant boost, and if you have your digital volume maximized this will cause clipping. It reduces the output by 10dB, to account for boost the linkwitz transform is applying and prevent clipping. I don't have MC in front of me right now, but there's a check box at the bottom of the linkwitz transform options that reads something like "normalize volume" or something like that. * is there a setting that prevents what it perceives to be overboosting the low end? * what does the frequency correspond to? the +/- 3dB point of the filter? * what does Q mean in the context of a shelf filter? the order of the slope perhaps? So my Qs here are around shelving filters I am comfortable that my setup can take it btw so I don't have any concern that I'm going to blow something up (excluding any fat finger errors!!). Therefore it really looks like there is some setting somewhere that was preventing me applying that sort of boost to the low end but I have no idea what it could be. I then shifted the LS filter to 60Hz and could see that the boost had been applied. To check PEQ was working I added a peq filter (-5dB cut with q=5 at 40Hz) to trim a room mode and could see the cut in the resulting trace. The resulting trace was exactly the same. I then added a low shelf filter with Q=1, frequency = 30Hz, gain = +5dB and remeasured.
Room correction applied to "move bass to sub" at 80Hz. Mixer (saffire mixcontrol) configured to output to L only. My setup was REW to default device routed through jriver via wasapi loopback measuring via an EMM-6 mic. Specifically neither filter seemed to be having any effect below about 40Hz. I understand how they work in general but I was having no success in applying these in jriver. How do linkwitz transform & shelving filters work in jriver? Is there any mechanism to see what the filters selected should be doing to the response? For example, does jriver's approach to PEQ equate to any of the eq device types that REW supports? given a 5.1 setup and a desire to cut a modal peak well beneath the XO if room correction comes first then apply the filter to all main channels + SW, if PEQ comes first then apply it to the SW only I have a couple of questions on this hence the rather general subject for this threadĪm I right in thinking that the channels that should be selected depend on whether the PEQ stage is applied before or after room correction? e.g.
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