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cuhieu83
Known Participant
Jul 29, 2018 10:40 AM UTC
Answered

What are cfa and pek file

Hi everyone,

I have a question would like to ask experience.

When I imported movie file to library, there are 2 file (cfa and pek) same name with original file (avi, mov...) in same folder created but before I naver see it.

So I would like to know what are those files and if I don't want to create those files, is it possible?

Thanks and yours faithfully

    Averdahl
    AverdahlCorrect answer
    Community Expert
    Jul 29, 2018 10:55 AM UTC

    .cfa-files are automatically created when Premiere Pro conforms files. If you let´s say import a .mp4 file with audio it will be conformed. See the progress bar down right in the user interface when you import files. This can not be turned off.

    .pek-files are created during conforming. They are the files that make it possible to see the audio waveforms inside Premiere Pro. Some media do not need conforming, so this can be turned off by un-checking "Automatic audio waveform generation" in the Preferences > Audio. But when you playback the media they will be created anyway.

    To put away those files on a dedicated HDD or folder, go to Preferences > Media and change the location of Media Cache. Both Media Cache and Media Cache Database should be in a dedicated folder so those files not are spread all over the HDD´s.

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    3 replies

    Ann Bens
    Community Expert
    Ann BensCommunity Expert
    Community Expert
    Jul 29, 2018 10:50 PM UTC

    The Definitive Guide to Adobe Premiere Pro's Media Cache — Video Review & Approval

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      excited_Genie16B8
      Legend
      Jul 29, 2018 9:55 PM UTC

      Premiere Pro will convert most imported audio to 32 bit floating point for internal use.  Those are the .cfa files.  You do want them.

      Premiere Pro will store the waveform data for fast and easy redraw in the .pek files.  You want them, too.

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        Averdahl
        Community Expert
        AverdahlCommunity ExpertCorrect answer
        Community Expert
        Jul 29, 2018 10:55 AM UTC

        .cfa-files are automatically created when Premiere Pro conforms files. If you let´s say import a .mp4 file with audio it will be conformed. See the progress bar down right in the user interface when you import files. This can not be turned off.

        .pek-files are created during conforming. They are the files that make it possible to see the audio waveforms inside Premiere Pro. Some media do not need conforming, so this can be turned off by un-checking "Automatic audio waveform generation" in the Preferences > Audio. But when you playback the media they will be created anyway.

        To put away those files on a dedicated HDD or folder, go to Preferences > Media and change the location of Media Cache. Both Media Cache and Media Cache Database should be in a dedicated folder so those files not are spread all over the HDD´s.

        Translate
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