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#21
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Re: Output Dither
We can completely agree on that! It's not really that important, but nonetheless I want to consciously make the decision wether to use it or not or at least know what's going on.
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The simplest thing would be to just check out the Dan Worral video about dither on Youtube, where he does all the bouncing and gaining for us and you can actually listen to the differences. Spoiler: he also concludes that it doesn't really matter all that much. I think in the end that decision should everyone make for themselves. Last edited by NewHere; 07-12-2020 at 11:56 AM. Reason: typo |
#22
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Re: Output Dither
Last insert slot of master fader is the only place where dither has any use. Last insert slot of aux goes back to mixer and even though the fader was set to unity dithering there is futile.
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Janne What we do in life, echoes in eternity. |
#23
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Re: Output Dither
Perfect closing words for this thread.
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www.srs-mastering.de Mac Pro 6.1-8core, OS 12.6, PT2023, HDX2, Sonnet Echo Express III-R, Madi Interface. |
#24
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Re: Output Dither
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No dither: https://www.dropbox.com/s/gh0qziixch...ither.wav?dl=0 Dither on Main Aux, first slot: https://www.dropbox.com/s/4dqu1289sa...tSlot.wav?dl=0 Dither on Master, last slot: https://www.dropbox.com/s/7qm4iy6cz9...aster.wav?dl=0 |
#25
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Re: Output Dither
My understanding is that dithering an aux is OK provided you don't add any signal processing downstream. Ideally, you want to dither the master fader tied to the same output.
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Bob's room 615 562-4346 Interview Artists are the gatekeepers of truth! - Paul Robeson |
#26
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Re: Output Dither
Exactly, this is actually my take away from this thread. I often ride the stem auxes which would „break“ the dither. From now on I will simply add a master to each aux with dither on the last slot and hide it.
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#27
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Re: Output Dither
I use either Ghz Good Dither or MAAT LINearise because they have no latency. Any other suggestions would be appreciated.
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Bob's room 615 562-4346 Interview Artists are the gatekeepers of truth! - Paul Robeson |
#28
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Re: Output Dither
You really know what you did?
You didn't record with 24bit, you recorded with less than 4 bit. And if you gain it up to 24 bit it still is a 4 bit recording. The dither noise you added is working on the LSB. You get 3 bit of Signal and 1 bit of noise. After gaining you still have just 3 bit of signal but 21bit of noise! If you are really working within 23 bit (Peaks at -6dbfs), anywhere you have to go analog and the best DA converters are around a S/NR of 120 to 126db. So you have at least 18db of noise which are 3 bit and that is way more than you can add with dither. On the other hand, if you prefer to record lower than -100dbfs I would use dither in any case.
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www.srs-mastering.de Mac Pro 6.1-8core, OS 12.6, PT2023, HDX2, Sonnet Echo Express III-R, Madi Interface. |
#29
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Re: Output Dither
I didn’t record anything. I dragged a snare sample from a commercial sample library into PT. Then I put Sonsig on an insert and pulled the channel fader down 122 db (in a 64 bit environment!). I couldn’t get it to -140 and thought it was close enough (which it was). I then bounced the clips to 24 bits. They never left the box. The clips got automatically imported back into the session and gained up with max clip gain and six trim plugins to make them easily audible. Without dither you get a crunchy snare and no reverb tail, with dither you obviously hear the dither noise but also that the crunch is gone and reverb tail is preserved (which is the whole point of dithering), and all that with the dither on an aux which supposedly doesn’t work. The whole point of the clips is to illustrate what happens at the noise floor, what good would a sample at -6 dbFS be in that case?
I wrote several times that a trip through my desk adds analogue noise that is well above dither noise (around -110dbFS). That is not the concern here. |
#30
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Re: Output Dither
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Best AD/DA conversion today is in the range of 124dB dynamics which means for best gain staging and headroom you should target -20dBFS to get full dynamics and least noise. If you have stuff -100dBFS you have a problem. It's like... imagine a mile long straight highway, you are on one end and i am on another. While in theory I could see your car, in practice I just cannot. Need to wait until you are closer and then I can tell which colour it is.
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Janne What we do in life, echoes in eternity. |
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