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Activity Forums Adobe Premiere Pro Inherited project: sound wav files are 48khz, clips and sequences are 41khz. Why? Problem?

  • Inherited project: sound wav files are 48khz, clips and sequences are 41khz. Why? Problem?

    Posted by Nina Lucia on June 11, 2019 at 5:17 pm

    So I inherited a project for a feature film and I can see in the columns that the original wav files from production sound are 48khz and that the clips are 41khz. The sequence settings are 41khz as well.

    Mac 10.11.6 / Premiere 2018 12.1.2 (Build 69) I did downgrade the project from 2019 to 2018 if that makes any difference.

    Not sure why or how this is the way it is, but then I’m new to Premiere. Everything plays fine. Is this going to be a problem for my turnover to sound? Or when I make the AAF will I be able to export as 48khz with no issues?

    I don’t want to mess with anything right now since it’s working and I’m in the middle of a project and new to this software. I am, however, setting up a new project and want to make sure this doesn’t happen in that one so I’m wondering what made this happen so I don’t accidentally do it myself in the new project.

    TIA

    Greg Janza replied 6 years, 10 months ago 3 Members · 7 Replies
  • 7 Replies
  • Ricky Barrow

    June 11, 2019 at 5:31 pm

    Someone probably made a sequence from the clips. By default the sequence settings take on the same parameters as the clips. You are change sequence settings at any time or you can dictate export settings when exporting sequences. Personally I would make the sequence settings the same as what I intend to deliver. PPro should re-sample all 44.1 to 48 on export, if exporting to 48 …BUT, I do not know if that will work on AAF to sound person.

    As a quick check, simply duplicate the sequence and change the settings to 48 and see if there are any negative results.

    Ricky

  • Nina Lucia

    June 11, 2019 at 6:56 pm

    Thanks.

    Do you know why the clips would be at 44.1 if the original audio is at 48? I just made a merged clip by selecting the picture and sound for one and right clicking > Merge Clip and it came out at 48 and I didn’t see any option to alter it.

    Oh…. I’m guessing they had the sequence setting at 44.1 and Merged Clips from the timeline. I had to fix sync on a few shots and did it that way and just looked and see that they are at 44.1.

  • Ricky Barrow

    June 11, 2019 at 7:11 pm

    Not sure what you mean by original audio. I made some assumptions by reading your post – I assumed someone shot “clips” (meaning video and audio) and that the audio on the “clips” were 44.1 —- I then assumed maybe it was a professional shoot or somewhere they added 48k wav files … either “extra” audio or recording at the same time and same content as the “clips and it was identical except it was 48.

    At any rate, I made assumptions and would only be making more assumptions by trying to answer why. I would really need to know all about your assets and would even then probably need to make an assumption. Bottom line is that I don’t think you’ll have any trouble … you can always cross bridges when they come up. I think you’re in a good place and would carry on – sounds like you are doing well with minor glitches!

    Ricky

  • Nina Lucia

    June 11, 2019 at 7:34 pm

    Yes, picture was shot with an Alexa and sound was recorded by a production sound mixer at 48khz. So we have the camera files and wav files.

    These were then synced/merged and the resulting clips now have 44.1khz listed in the Audio Info column, where as the individual wav files have 48khz in there.

    So I’m now assuming that they made their sequence setting at 44.1 and synced/merged the clips using a timeline that was at 44.1.

    Since it plays fine with no issues, I’m going to leave things as they are until we are picture locked and then try your suggestion of making a copy and changing the audio setting.

    I appreciate your time and input!

  • Greg Janza

    June 11, 2019 at 8:47 pm

    If you still have the option and time, all audio should be married with the video through creating multicam source sequences and not merged clips. Merged clips is a destructive function that really should be eliminated from Premiere.

    https://www.linkedin.com/in/tmprods
    tallmanproductions.net

  • Nina Lucia

    June 11, 2019 at 11:39 pm

    What is destructive about merged clips? From what I’ve read it doesn’t matter, and it seems that merged is what I’m used to from other editing software.
    Source: https://blog.frame.io/2018/05/14/premiere-batch-syncing/

    Does the multi-cam sequence method actually give you sequences? I hate copying from one seq to another, are those different? Can they be loaded into the source monitor and marked with ins and outs and can overwrite be used? (I’m an Avid editor who has also used FCP7 back in the day)

  • Greg Janza

    June 12, 2019 at 12:47 am

    Merged clips destroys the connection to the original audio media. Do a search on
    Google. There’s a lot of info on why you should avoid using merged clips.

    Multicam source sequences act the same as clips. It’s non-destructive and it’s the way to sync secondary audio

    https://www.linkedin.com/in/tmprods
    tallmanproductions.net

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