Does Resolve Dither?

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ironlion37

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Does Resolve Dither?

PostWed Jul 28, 2021 3:49 pm

I produce music videos and render my audio files out of Ableton. I can render them as 24 bit or 16 bit, dithered or not.

When I bring an undithered, 24 bit audio file into Resolve, can it use that? Does it dither the audio on rendering the video?

Should I be rendering a 16 bit file for use in Resolve instead of 24?

Thanks!
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Reynaud Venter

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Re: Does Resolve Dither?

PostWed Jul 28, 2021 4:15 pm

Dither should always be applied whenever you are reducing bit depth, regardless of going from fixed or floating point. TPDF is more than enough.
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ironlion37

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Re: Does Resolve Dither?

PostTue Aug 03, 2021 6:59 pm

Reynaud Venter wrote:Dither should always be applied whenever you are reducing bit depth, regardless of going from fixed or floating point. TPDF is more than enough.


Thanks but my question is: should I dither my 24 bit audio file when exporting from Ableton? I assume that Resolve is *not* dithering my audio when I export a video and so I should dither when exporting from Ableton (which then gets imported into Resolve). Thanks.
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Reynaud Venter

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Re: Does Resolve Dither?

PostTue Aug 03, 2021 7:10 pm

ironlion37 wrote:should I dither my 24 bit audio file when exporting from Ableton?
Yes, if there is a word length reduction.
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peterjackson

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Re: Does Resolve Dither?

PostTue Aug 03, 2021 7:29 pm

AAC and other lossy codecs don't have a concept of bit depth. Just feed them highest quality you have.
Last edited by peterjackson on Tue Aug 03, 2021 7:39 pm, edited 3 times in total.
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peterjackson

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Re: Does Resolve Dither?

PostTue Aug 03, 2021 7:31 pm

Honestly, if that critical just use video from Resolve and merge in audio using ffmpeg - c:a copy, shutterencoder or mkvtoolnix. No need to funnel audio through Resolve at all.
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shebbe

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Re: Does Resolve Dither?

PostTue Aug 03, 2021 11:16 pm

I don't think video encoders ever dithers audio. They just re-encode and re-compress.
Dithering should always be applied just one time ever in the audio path. Going from 32bit internal in a DAW to 24bit export is when you apply it or you send a 32bit to mastering and they do it.

I think in Live the power 3 algorithm is most preferred.
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Charles Bennett

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Re: Does Resolve Dither?

PostWed Aug 04, 2021 12:05 am

You do not need to dither a 24bit audio track when using it with Resolve. Just import it as it is. Resolve works quite happily with 24bit files.
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ironlion37

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Re: Does Resolve Dither?

PostWed Aug 04, 2021 12:31 am

Thanks for all the replies! What I'm getting is that since I work in 24 bit audio, I can just export it from Ableton Live with no dither. Resolve can take it in as is and export it as 24 bit, and YouTube prefers 24 bit, so there's never any need to reduce it. Thanks everyone!

Here's the published video:

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