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 32 >16 (Dither)...better results than 24 > 16
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mark4man Offline
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Joined: 19 Mar 2004
Posts: 135


PostPosted: Sat Jun 27, 2009 2:56 pm    Post subject: 32 >16 (Dither)...better results than 24 > 16 Reply with quote

kinda wondering...

what happens when one dithers a (legal) 32-Bit FP file all the way down to 16-Bit w/ their favorite dither box ??

reason I ask is...I'd been used to (like everyone else, I suppose) bouncing out of the DAW (SONAR) at 32-Bit FP...then brick walling to legal in the mastering rig (WaveLab) & rendering to 24-Bit at the same time...then dithering (UV22HR) & rendering to 16-Bit ftom 24.

[i had been doing this 'cause I assumed (& had heard) that A) the quantization error from 32 > 24 is miniscule & well below the audible range & B) it's a legal file after limiting anyway so I may as well render to 24...why waste bits.]

I did one today whereby I kept the file size/format at 32-Bit FP during the brick wall phase...& then dithered all the way down to 16 from 32 as the final stage...& it sounded audibly way better (in comparing both methods) to the old method (24 > 16).

most notable was a more accurate reproduction of transients (snare, cymbal crashes, et al.) [i had used elephant 2 on clip for the limiting phase].

guess I'll keep this new (new to me, that is) method...but I'm wondering what's goin on technically w/ it ?

thanks,

mark4man
MoonMix Studios
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SafeandSound Mastering Offline
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Joined: 02 May 2011
Posts: 57
Location: London UK
Age: 45


PostPosted: Thu May 05, 2011 2:48 am    Post subject: Reply with quote

If your selected dither plug in is working properly for both 24/32 bit duties, there should be no sonic differences between the 2 high resolution files being dithered down to 16bit.

cheers

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fulcrum Offline






PostPosted: Mon Jul 04, 2011 10:15 pm    Post subject: Reply with quote

You started with better source material with the 32-bit file than you did with the 24-bit one: it had 8 extra bits to play with. That's why your 16-bit post-dither master sounded better.
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