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Forums DaVinci Resolve Audio glitch after rendering

  • Audio glitch after rendering

     Johan Windh updated 1 month, 3 weeks ago 6 Members · 12 Posts
  • Johan Windh

    November 30, 2022 at 3:17 pm

    Hi.

    I just cannot get rid of this issue. Whenever I render stuff from Resolve, I randomly get small audio cracks in the beginning of the film rendered. It does not matter which file format/codec/audio settings I use.

    Sometimes it goes away if I fiddle with clip/track volume at the start of the time line, but it’s all just random. Sometimes I have to render a timeline 4 times before getting a clean version, and sometimes I’m lucky on the first go.

    Does anyone have a solution for this extremely annoying bug?

    Running Resolve 17.4.6 Studio version on a Mac Studio M1 Max. OS 13.0

    (I’ve had this bug since Resolve 15 or longer.)

  • Matthew Skala

    November 30, 2022 at 4:57 pm

    Interesting, I don’t have a solution for you but wanted to chime in because I experience something similar when playing back from the timeline.

    Seems to take a few seconds for the audio to sync up at the start of any playback action from anywhere on the timeline. Experienced this with 18 the other day.

  • Dean Baker

    December 1, 2022 at 3:04 am

    Hi Johan,

    What else have you tried to troubleshoot this problem? Have you tried to render the same project on another machine? And what kind of audio tracks are you using, music, vocals, etc?

    Are you using any audio effects on the audio tracks? If so, are these 3rd party plugins or Resolve Fairlight effects? What happens if you just export the audio without video?

    I’ve been using Resolve since version 14 and audio was a pain in the butt back then but now I have no issues with any audio whatsoever. I haven’t used the new M1 machines, I wonder if there is something in the hardware that is glitching.

  • Michael Gissing

    December 1, 2022 at 5:29 am

    Not something I’ve experienced but using Fairlight automation has made me aware that you should never start a timeline at 00:00:00:00 and have a clip from that first frame. I always use a timeline that starts from 1hr or 10hrs and also leave a couple of seconds clear at the head before first frame. Old habit but maybe the issue is the automation on render is resetting itself to zero frame and then jumping on first frame to begin playback.

  • Johan Windh

    December 1, 2022 at 10:46 am

    I’ll try this. Thanks!

  • Johan Windh

    December 1, 2022 at 10:47 am

    I haven’t tried it on another machine, as there is none at the moment. The amount of audio tracks or type of audio used in the timeline does not matter.. I’ve tried all the export audio settings I can think of. Real head scratch.

  • Johan Windh

    December 2, 2022 at 9:54 am

    My timeline is always set to start at 01:00:00:00, but shifting the media and not having it start with a clip seems to fix the “start crack”, which is GREAT!!!

    However, in this specific project, there are cracks throughout the film. I cannot understand why. I’ve tried to export a new audio master from FCPX and using that instead, same thing.

    I’ve tried creating a new Resolve Project and importing the timeline there, same thing.

    But, this is the first time I’ve encountered a problem like this throughout the film. Usually I’ve inly had the “opening crack” issue.

  • Michael Grenadier

    December 2, 2022 at 12:40 pm

    are you using any compressed audio in your sequence like mp3s or h264? If so, try transcoding to an uncompressed format like aiff or wav with a minimum spec of 48k 16 bit and make sure all audio specs match. although most modern nle’s usually can deal with compressed and mismatched sample rates and bit depths, they can intermittently cause problems so that’s usually first place to investigate. Also, are you using any audio processing hardware? And are the clicks occurring on audio edits? If so, try applying a 2 frame audio dissolve on the audio edit…

  • Brian Jones

    December 2, 2022 at 2:48 pm

    Is the timeline frame rate the same as the frame rate of the video?

  • Johan Windh

    December 7, 2022 at 7:59 am

    are you using any compressed audio in your sequence like mp3s or h264? If so, try transcoding to an uncompressed format like aiff or wav with a minimum spec of 48k 16 bit and make sure all audio specs match. although most modern nle’s usually can deal with compressed and mismatched sample rates and bit depths, they can intermittently cause problems so that’s usually first place to investigate. Also, are you using any audio processing hardware? And are the clicks occurring on audio edits? If so, try applying a 2 frame audio dissolve on the audio edit…



    The problem occurs regardless of audio format it seems.


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