In no particular order (i.e., I'm thinking out loud)...
* What should the farfield (ungated) in-room response look like? Let's assume this is taken with the mic at the listening position, with both speakers and sub playing, and smoothed (say 1/16th octave) to remove the comb filtering jaggies (or whatever they are). If I ignore the peaks and dips, I seem to have a steady downward slope with increasing frequency. Is this expected or good? Or is it totally irrelevant? I also have a hole at around 300Hz that I need to find the cause for and fix.
* What's the best way to measure bass? Most measurements I've seen seem to go nearfield below around 200Hz and splice that into the 1m/2m measurements above that frequency. And that makes sense in general, because you don't want the room to interfere, you want to see how the speaker performs. But in my case, I'm building one speaker for my room, so wouldn't it be more relevant for me to take real in-room measurements?
* Floor bounce - my woofers' bottom edges are 9" above the floor. How does the math for that work? That will add SPL below a certain frequency, right? How far away do I need to place the mic to be able to measure this?
If I set the gating in SW to what looks correct to me, I get measurements down to about 400-500Hz. The usual way to get measurements below that seems to be to go nearfield, or take the speakers out into the yard and put them on a high stand. But what I'm thinking is, even if I did that, when I bring the speakers back into this room, the room will change the response in that region. So shouldn't I be measuring it in the room? And if I should, then I eed to understand the correct way to do it and how to interpret the results.
* What should the farfield (ungated) in-room response look like? Let's assume this is taken with the mic at the listening position, with both speakers and sub playing, and smoothed (say 1/16th octave) to remove the comb filtering jaggies (or whatever they are). If I ignore the peaks and dips, I seem to have a steady downward slope with increasing frequency. Is this expected or good? Or is it totally irrelevant? I also have a hole at around 300Hz that I need to find the cause for and fix.
* What's the best way to measure bass? Most measurements I've seen seem to go nearfield below around 200Hz and splice that into the 1m/2m measurements above that frequency. And that makes sense in general, because you don't want the room to interfere, you want to see how the speaker performs. But in my case, I'm building one speaker for my room, so wouldn't it be more relevant for me to take real in-room measurements?
* Floor bounce - my woofers' bottom edges are 9" above the floor. How does the math for that work? That will add SPL below a certain frequency, right? How far away do I need to place the mic to be able to measure this?
If I set the gating in SW to what looks correct to me, I get measurements down to about 400-500Hz. The usual way to get measurements below that seems to be to go nearfield, or take the speakers out into the yard and put them on a high stand. But what I'm thinking is, even if I did that, when I bring the speakers back into this room, the room will change the response in that region. So shouldn't I be measuring it in the room? And if I should, then I eed to understand the correct way to do it and how to interpret the results.
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