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| quote: | Originally posted by DjSimonB
So are there any issues like loss of quality, etc, with dithering down to 16/44.1 for CD's, or does it go smoothly? |
That mainly depends on the dithering algorythm. But simply put, with a decent dithering application (like POW-R or UV22 for example) used right, it's easy to say that a 24 bit sample dithered down to 16 bit will be better than a straight recorded 16 bit sample (with good dithering and noise shaping, you can get 16 bit samples that have 18 bit like dynamics. The ear can be fooled that easily).
But yes, the strain and storage aspect is important too. Recording at 24/96 (and god, 32float/192, even worse) will put a lot of strain on your comp, and take up A LOT of space.
Personally, I'm all in favor for 24 bit recordings, especially for dynamic signals, as the detail and smoothness will be enhanced. Reverb tails for example is a massive difference.
96 kHz and other high samplerates is another matter. Yes, it can sound better, but people don't even agree yet why, and if it is consistent. 80% of "normal" people can't hear the difference between CD and 192 kbps MP3, let alone 96 kHz vs 44.1 kHz. Anyway, the gain of quality isn't as big as the bitdepth.
What you must understand is that every part of the signal chain counts. If it's to record the noise of your crappy mixer in better resolution, then no. You must be consistent throughout.
One engineer once told me, and I can only agree : first make sure you get your bases right. Don't forget that some well engineered albums recorded in 16/44.1 still sound better than typical "factory produced" 24/96 recordings now. Don't think that 24/96 techniques will mask your inaptitude to record and mix, or even compose. Learn to harness the limits of 16/44.1 first, and then only you'll understand why you need 24/96.
Anyway, about dither. One general rule. If you start high, keep everything that way until the very end. For example, if you record in 24 bit, stay in 24 bit until you print on the medium. Don't go converting to 16 inbetween, and then back to 24 and so on and so on.
Then, dithering is the last step in the chain, and should only be done once. Simply put, dither is noise, and each time you dither, you add more noise. Dither should be done once. At the end, before printing to media (so your projects started at 24 bit, keep them to 24 bit, after mastering, it'll be dithered down to 16 bit to fit on CD, if it ends up on analog media like vinyl, it doesn't necessarily require dithering, as the inherent noise of the medium can and will already be enough to mask the digital artifacts).
What algo and type of dither to use? Personal preference and trial and error will tell. It's not really like POW-R type 3 will always be best on every song you make. Each song requires an unique approach (as the dynamics and levels will be different). So it doesn't really take long and try different dithers, and compare.
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