Converted ipod files suffer from big sound desynch...

Discussion in 'iPod touch' started by Kyo, Jan 8, 2008.

  1. Kyo

    Kyo New Member

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    Pictures first, sound ages later. Some files I encode in the exact same manner and don't have this problem... what have I done wrong?

    My settings using magic video converter (one of the few who convert rmvb):

    profile: iPod H.264 - High Quality (H.264, 24 fps, 320x240; MPEG4 AAC LC)

    General settings:

    -type: apple ipod
    -H264
    -AAC

    Video settings:

    -preset quality: 1200 kbps
    -Video size: change dimensions (it had the standard 320x240 ipod setting) - changed it to 480x320
    -frame rate: auto (set at 24 default)
    -aspect: auto

    audio settings:

    sample rate:

    channels: 2 (stereo)
    sample rate: tried both 44100 and 48000... makes no difference.
    bitrate: 128 kbps
  2. Mindfield

    Mindfield New Member

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    Try a different converter. Some converters are better than others at de/remultiplexing the audio when they convert. Try Videora instead. It seems to handle it pretty well.

    Also, the frame rate will depend on the source. If it is a standard NTSC broadcast recording, then the frame rate should be 29.97FPS. PAL is 25FPS. Movies are (correctly) 24FPS. Changing the frame rate can have an effect on audio synchronization if the converter doesn't handle the muxing properly.
  3. s4shanonly

    s4shanonly New Member

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    I agree... Videora will sort out Audio-Video Synching
  4. Kyo

    Kyo New Member

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    Yeah, I thought it might be the frame rate but when loading the sourcefile, the converter says it's 24 fps.. the same as I set my settings to for conversion.

    Anyway, I'm using magic video converter because it can convert rmvb... Videodora doesn't support that format.

    It's a shame, but it seems I'll have to give up on converting rmvb files... what a crap format to work with.

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