Mpeg audio 44kHz to 48kHz

Discussion in 'MPEG-1 and MPEG-2 encoding (AVI to DVD)' started by dancecore, Apr 18, 2006.

  1. dancecore

    dancecore Member

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    Hi.
    What is the easiest way (software) to transcode Mpeg audio (mpa) from 44kHz to 48kHz. I've tried DVD-lab's Audio Transcoder but it isn't working on all my files... sometimes it says "can't access file" "if such file exists check if it is not in use" - and I'm sure it's not.

    For example such file (in DVD-fab a get the right mpv file but when i try to transcode mpa 44 to 48 I get above errors):

    file_name.m2v (it is a video clip)
    File Length : 00:03:35:12

    Video Info :
    Frame Size : 480 x 576
    Frame Rate : 25.00 (fps)
    Video Codec Name : MPEG2 Video Stream(ISO/IEC 13818-2:1996)
    Interlacing : Upper/Top Field First
    Video Aspect Ratio : 4 : 3

    Audio Info :
    44100 Hz 16 Bits Stereo
    Audio Codec Name : MPEG Audio Stream(ISO/IEC 11172-3:1993, 13818-3:1996)

    Please help...
     
    dancecore, Apr 18, 2006
    #1
  2. Jigen

    Jigen Regular member

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    Headac3he will convert your audio easily assuming the files are not corrupted somehow. It's free too.
     
    Jigen, Apr 19, 2006
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  3. aldaco12

    aldaco12 Active member

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    And what happens if you simply de-multiplex the MP2 from the MPG, before transcoding it with DVD Lab? Do you receive again that error?

    More, you shouldn't see 'audio info' on a MPV. Won't it be that the output file's name = input file's name (usually DVD Lab adds a _48 kHz, though)?

    I'm not sure about the 44.1 kHz -> 48 kHz transcoding capability of HeadAC3he, though. Try FFMPEG GUI. It's free, too.
     
    Last edited: Apr 21, 2006
    aldaco12, Apr 21, 2006
    #3
  4. dancecore

    dancecore Member

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    OK, maybe I don't get it ;( Is the "mp2" same as "mpa" and "m2v" same as "mpv" for DVD-lab (and same for any other application)?

    And no, I'm not receiving any errors when de-multiplexing mpv from mpeg. I can see video info.
    Then it comes to de-mplex mpa from mpeg. After a message "Run Audio Transcode now". I hit Transcode button and there I'm getting errors mentioned above.

    Also, on my compiled dvd, when I run one of the video clips added to the project (picture is fine) I'm getting some audio problems. I can hear some clicks and hiss. Any ideas why?? All files are the same:

    Audio Info :
    44100 Hz 16 Bits Stereo
    Audio Codec Name : MPEG Audio Stream(ISO/IEC 11172-3:1993, 13818-3:1996)

    or

    (GSPOT)
    MPEG-1 Layer 2
    44100Hz CBR 224 kb/s total (2 chnls)

    Is it because of the transcoding them to 44@192kb/s ?? Shouldn't than all of them be affected ?? Not only few of them... And how about AC3?? What is a avarage size of a single file?? (mpa i ~4-6+ MB)
     
    Last edited: Apr 21, 2006
    dancecore, Apr 21, 2006
    #4

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