There ya go. I watch numbers', other than that.. exactly!I personally pay very little attention to numbers. I know internet wisdom tells you to follow all sorts of rules, but I just make my shit come in somewhere around -10 and don't worry about trying to target some semi arbitrary number. I'm nowhere near clipping, not even scaring it, so I'm good to go.
Man am I stupid. I've been stuck in analogue mode this whole time - trying to get the strongest signal possible. So I guess the bad news is I'm an idiot. The good news is I can improve recording quality on my next project.
If you're below clipping all the time, then like Greg said, you probably won't notice a difference, unless all those tracks combined are clipping your master, which is sort of related but not. The point of my run-on sentence is, if nothing's clipping, you're ok, but it's good pracice to keep levels lower than "close to clipping".I am always just below clipping - at least according to Pro Tools on my computer screen. I read an article where the guy seems to think I'm losing quality by pushing it that high.
If you're below clipping all the time, then like Greg said, you probably won't notice a difference, unless all those tracks combined are clipping your master, which is sort of related but not. The point of my run-on sentence is, if nothing's clipping, you're ok, but it's good pracice to keep levels lower than "close to clipping".
DAW meters lie quite often. They can miss inter-sample peaks and not always accurately reflect when clipping occurs. For this reason, you should always leave at least a dB or so of headroom below clipping. I typically get uncomfortable if I see my meters peaking past -3dB, and I never want to see the red CLIP meter illuminate. But you really don't need to have your levels that hot. In fact, most DAW software is calibrated so that the equivalent of "0 dB" on analog VU meters correlates with anywhere between -20 dBFS and -15 dBFS on the DAW's meters. Yup - that's right - the level you're shooting for should be in the -15dB range on average, not up in the -3dB range. If your DAW meters don't have calibration marks, -15 dBFS is normally somewhere in the middle of the meter's range on most DAW programs, not up near the top of it. I can't emphasize this strongly enough - if you've been slamming those levels and pushing those meters to the top when you record, switching to -15 dBFS as your target recording level will make a huge improvement to the sound of your DAW recordings and mixes!
Actually, that's a good point, and I left that out.This guy seems to think being near clipping on a DAW can create other problems:
Recording Levels And Gain Staging - Harmony Central
Here's where one other difference might come in to play: I use a Joe Meek twin Q. I'm constantly tweeking it to make it output a strong signal - probably past the optimal point of low noise for the TwinQ itself (but within reason). If it's OK to be at -15 then I have lot more choices and I don't have to push the pre/make up gain/output so hard.
But the reason "they" say -15 to -18db should be the optimal level has less to do with the digital part of it, and more to do with the analog part of it. If you're levels are high, that could mean that, somewhere along the line, you're pushing a pre-amp, converter or something too hard.
.... the only problem is that there is so many different combinations of equipment, you can't really give a good global answer.