14b6 audio noise/distortion issue

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Henrik Nordberg

  • Posts: 1
  • Joined: Fri Aug 04, 2017 11:51 pm

14b6 audio noise/distortion issue

PostSat Aug 05, 2017 12:22 am

Audio that is processed (even if the Fairlight tab isn't touched) through DaVinci Resolve 14 (beta 6, but earlier as well) has noise in one or both channels. I had to go back to 12.5 to have it working again. In beta 6 it sounds like digital artifacts (like compression gone wrong or quiet crickets). Input audio is fine (stereo 24 bit / 196 kHz, 32 bit .wav) (same result with more channels).

Here's what the distortion sounds like
(er, not allowed to post URL's so open the video gZmppSldXwU in youtube -- just go to youtube and add gZmppSldXwU at the end of the URL, it is not searchable)
McLean's 'Tango' processed with Resolve 14 b6

Here's what it should sound like:
(er, not allowed to post URL's so open the video dhPb700eGs4 in youtube)
McLean's 'Tango' processed with Resolve 12.5.4.019 (Dec. 2016)

The noise is there before the audio stage (in the editor) so it is not the encoder that adds it.

I am using either a Zoom F8 (in Audio Interface mode) --> Yamaha HS8's or an JDS Labs Objective DAC --> Sennheiser HD800 to mix.

Intel 4930K / ASUS X79 Deluxe / 64 GB RAM / ASUS Strix 1080 Ti
Main disk: 2TB Samsung NVMe 960PRO

I really like version 14 (audio mixing built in and the encoder is much faster (though it uses only 10% of the 1080Ti)).

Hope this can be addressed soon.

Cheers,
Henrik
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Michael Tiemann

  • Posts: 199
  • Joined: Fri Jul 05, 2013 11:22 am

Re: 14b6 audio noise/distortion issue

PostThu Sep 14, 2017 3:50 am

I have run into this problem with the released version. I have a 22 channel BWAV file, and from time to time it sounds as if there's a clocking error. But the audio files are perfect and noise free. Something inside the fairlight engine sounds as if there's a virtual gearbox gone wrong. And it writes the noise to my video files and it can be heard in the YouTubes I post.
MacOS Sierra Version 10.12.6 (16G29)
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