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brucek wrote:
From the HELP FILES: Set the End Freq to the highest frequency at which you wish to measure. The sweep will span the range from 0Hz to twice the frequency you set (with an overall limit of half the soundcard sample rate) to provide accurate measurement for the selected range |
So if I set the end Freq limit to 22khz, the sweep will cover all the way up to 44khz??
I have no idea what my sample rat elimit is on my soundcard. I saw the rate was set for 48khz. I guess thats half of my soundcard...
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From the HELP FILES: All Measured TAB
This group shows the measured responses for all measurements on the same plot. The "Separate the traces" check box offsets each trace downwards from the preceding trace to make it easier to distinguish individual features when the traces are at similar levels.
It allows up to eight traces on one graph.
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Same plot? I cant take a measurement from 0-200hz, then another measurement from 200-22khz and put them on the same graph?
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Yeah, a bit tricky when two filters are used for one sub - one from receiver crossover and one in the sub itself. Then you are trying to mix two subs with different frequency ranges in the same room - tricky. Usually when a sub is crossed at 80Hz, it's not localizable, although anecdotal evidence may dispute that somewhat. Have you tried an overall 60Hz cross? (perhaps your mains won't extend low enough to support it though).
I'd certainly start by integrating the single main sub and then begin to increase the level of the close sub and take measurements to check what's happening.
brucek
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I found that adjusting the 2nd sub to the freq that is lacking in the room to be the best bet. If you wanted an increase <60hz and not an increase above 60hz, then the 2nd sub should start rolling off @ or around that freq.
Thanks for all your help...