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rudo_fr
rudo_fr
Participating Frequently
January 15, 2010
Answered

CFA files

  • January 15, 2010
  • 1 reply
  • 24388 views

Hello guys,

Could adobe give us the possibility to accept if we want .cfa or .pek file in cache ?

This audio file are too hudge it's ridiculus ? i never use them.

That remind me old avid system who encode each file you import ! unsuportable!

So Adobe any solution for the futur ?

Thanks for answers and sorry for my english.

    This topic has been closed for replies.
    Correct answer the_wine_snob

    Well, actually you do use those files. They are the conforming of the audio to 32-bit floating point for editing. The PEK files are the Waveform Display files. They are large, but that's unfortunately the nature of editing video and audio.

    As far as asking Adobe to change things, you will want to file a Feature Request form. This is just a user-to-user forum, with no Adobe presence.

    Good luck,

    Hunt

    1 reply

    the_wine_snob
    the_wine_snobCorrect answer
    Inspiring
    January 15, 2010

    Well, actually you do use those files. They are the conforming of the audio to 32-bit floating point for editing. The PEK files are the Waveform Display files. They are large, but that's unfortunately the nature of editing video and audio.

    As far as asking Adobe to change things, you will want to file a Feature Request form. This is just a user-to-user forum, with no Adobe presence.

    Good luck,

    Hunt

    rudo_fr
    rudo_frAuthor
    Participating Frequently
    January 17, 2010

    Thanks Hunt for your answer,

    i know what is cfa and pek files but cfa file are too much. pek file is accetable but isn't necessary to make a DVD.....

    For exemple during the creation of a DVD: i import an 60 seconds audio file (.mpa file of 2041Ko ) into Encore CS4.

    Encore create or conform for this mpa file a .cfa file of 28160 Ko in cache folder, more than 10 time it's original size.

    Pek file is reasonable for this 60 seconds audio file (111ko).

    Aberations are not finish, Encore repeate this conform operation in a random way (for exemple when i change aplication (if i clic on windows explorer and go back into encore program or if i re-open encore project etc...) so 28160ko X nTime the random way encore conform..... for only 60 secondes audio file....

    I'm working on dual layer DVD 8.7 GO project where there is more than 6 hours of audio & video. Do you better understand my pipeline problem ?

    So for  DLDVD 8.7GoX10 = 87GO in the best case, just to begin......for audio reasons ?

    It's why it could be reasonable than Adobe give us a way to stop this audio file conformation.

    Before, i made DVD authoring with Spruce DVD maestro and i never met this aberation.

    Even without this bug (conform several time the same file without understand why) i just found this way of working absurde because my objective is to make a DVD, and my audio .mpa file still the same .mpa file from the begining until the end of the process.

    Why an mp3 audio file must be conform in 32-bit floating point if you don't make any modifications on it ? i will better understand if i was working with soundbooth to make audio modifications .... Whatever...

    Sorry for my english.

    Rudo_fr.

    rudo_fr
    rudo_frAuthor
    Participating Frequently
    January 19, 2010

    Bill's right!

    You need those CFA files - PEK files will not be sufficient as they would merely carry the waveform graphical content - the "peak" image.

    The CFA = Conformed Audio. Without it, you cannot use the preview functionality.

    If you delete the CFA files after finishing the project, that is fine - Encore will simply rebuild them the next time you launch the project.

    All authoring apps using Sonic cores do this.

    Even Scenarist does it - you get a RAW LPCM file in the cache on importing all audio files.


    HI Neil,

    did you well read my answer:

    I just found this way of working absurde because my objective is to make a DVD, and my audio .mpa file still the same .mpa file from the begining until the end of the process.

    Why an mp3 audio file must be conform in 32-bit floating point if you don't make any modifications on it ? i will better understand if i was working with soundbooth to make audio modifications .... Whatever...

    I have to add i understand principe for previewing but as we start audio from mp3 we don't need 32 bits mes couill audio file it's ridiculus..... we could still with mp3 audio file or ac3 codec.......

    Anyway we still work with 15 Go of cfa file for a 4.2 GB DVD... and no problems with full blu ray.

    And ADD this post

    This is a feature which is way over due.

    I have seen complaints about this from 2006!

    http://forums.adobe.com/message/1807590#1807590

    Why is it so difficult to include an AC3 Decoder in Encore?

    Even worse is the fact that you have to dig so deep to find these files which take up so much room in order to delete them after i completed a project as there is no option to delete a project in Encore which would also delete these files.

    Why should I suffer the time lose for audio conforming?

    Why should Audio conforming eat so much of my hard disk space?

    (A 162 MB AC3 conformed to a 2.17GB CFA file!!!!)

    Why is there no choice in Encore to where conformed files should go instead of being put automatically into:

    C:\Users\....\AppData\Roaming\Adobe\Common\Media Cache Files which is a hidden folder!

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