#31
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Interesting, Anton. I'm not sure that noise is actually mic (or preamp) self-noise, its pretty noticeable at lower frequencies, not as broadband as I'd expect mic noise to be. I don't have many N22 tracks lying around, but checking the few I have, the noise profile is pretty different, more even across all frequencies and substantially lower than this. I also hear a lot more room sound than I usually hear in your recordings. I wonder if the culprit is the figure-8 pattern, picking up more of your room, and maybe computer or other noise?
I'll send you one of the few examples of an N22 recording I have for comparison.
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#32
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I wonder if you couldn't just apply the "S" processing to each of those tracks and then listen to the "LR" (which would be two front-back sides in a Blumlein pair, right?) individually to determine how much of the room was being picked up? The N22 is active, as well, so it will have self-noise, and should not need another preamp, other than the mic pre, at least from what I read. Interesting that the spec PDF at AEA does not include self-noise.
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#33
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Enjoy the Journey.... Kev... KevWind at Soundcloud KevWind at YouYube https://www.youtube.com/playlist?lis...EZxkPKyieOTgRD System : Studio system Avid Carbon interface , PT Ultimate 2023.12 -Mid 2020 iMac 27" 3.8GHz 8-core i7 10th Gen ,, Ventura 13.2.1 Mobile MBP M1 Pro , PT Ultimate 2023.12 Ventura 12.2.1 |
#34
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"I know in the morning that it's gonna be good, when I stick out my elbows and they don't bump wood." - Bill Kirchen |
#35
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Thanks for that observation Doug, that is super good to know. I just figured it was preamp or mic noise. With my cardoid Gefells I hear not nearly as much room noise. I don't think the fan on my Macbook Pro was going, but the backside of the ribbons are facing my window, so it could be environmental or house noise. I'll do some more tests with two panels in a V behind the mics, perhaps that will help block some of it out.
I applied Izotope RX Noise Remover to the track and i think it sounds alot better. I need to work with the stereo balance a bit, i feel like its pulling toward the left some, or a majority of the guitar body sound is coming through that mic.
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#36
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What should work is the MS equivalent, just rotate the mics 90 degrees, and make sure the side mic is basically in front of the soundhole, with the null pointing to the soundhole, the lobes aimed across the guitar in both directions. Then the Mid mic goes on top, up around the top of the waist. You can play with the vertical placement to find a spot that sounds good, but not boomy. Once decoded, MS is theoretically the same as XY, tho in practice, since you're close mic'd and the 2 large mics are picking up different parts of the guitar, it will be a bit different. You can also rotate the side mic slightly to affect the left-right balance, tho you want to be sure the soundhole stays in the null. You can also use EQ to fine-tune a mostly balanced stereo guitar. I find FabFilter's EQ to be especially handy - adjusting the L and R channels with a Tilt EQ curve can even out small differences without messing with the stereo image too much. You can also use the MS EQing features, pulling down the side component on the lower frequencies a little on the bass area, which often tends to be what's bouncing around when the guitar's pulling to one side (assuming you're mostly balanced). Pulling down the Side (perhaps boosting the Mid EQ at the same frequency to offset the cut) makes the low frequencies more mono, moving the bass into the center of the image (which you may or may not want - it's something to play with)
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#37
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For this Bluemine config the point where the two mics intersect was pointed at the center of the soundhole, with the top edge of the bottom mic even with the top edge of my guitar, if that makes. So if the front of the mics are 90 degrees from each other, the center of that angle is pointed right at the sound hole, so each mic is spanning the side of soundhole
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#38
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#39
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Yea, i see, the top mic is indeed above the guitar. I'll try to lower the whole configuration or sit myself up higher. Ill also try mid side.
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#40
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Yeah, I'd try lowering it so the junction of the mics is at the soundhole - but with MS, leave them where they are, and just rotate the mics by 90 degrees.
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Music: Spotify, Bandcamp Videos: You Tube Channel Books: Hymns for Fingerstyle Guitar (std tuning), Christmas Carols for Fingerstyle Guitar (std tuning), A DADGAD Christmas, Alternate Tunings book Online Course: Alternate Tunings for Fingerstyle Guitar |
#41
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#42
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Enjoy the Journey.... Kev... KevWind at Soundcloud KevWind at YouYube https://www.youtube.com/playlist?lis...EZxkPKyieOTgRD System : Studio system Avid Carbon interface , PT Ultimate 2023.12 -Mid 2020 iMac 27" 3.8GHz 8-core i7 10th Gen ,, Ventura 13.2.1 Mobile MBP M1 Pro , PT Ultimate 2023.12 Ventura 12.2.1 |
#43
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#44
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It just depends on the preamp you have. The active version ensures correct impedance, and adds that extra gain. I use quiet preamps that meant for ribbns and have all the gain i need. If your preamp cant supply enough quiet gain, then adding that internal gain stage should help. Note that as Anton discovered, even an active ribbon still needs lots of gain for quiet sources like fingerstyle guitar.
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#45
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