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  1. Hi,

    I have several AAC files that play fine outside of Vegas Pro (16.0) but once I play them in Vegas to edit they keep jumping a few seconds ahead, they're completely choppy.
    Does anyone know what could be wrong and how to fix it?

    I did convert a few of those files to mp3 and that resolves the issue, but I'd prefer to use the AAC files.

    Thank you.
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  2. If problem loading files and quality is at stake, lossless or almost lossless formats are used to load it into Vegas. That's a general answer. Vegas has general problem loading elementary streams.

    One workaround for Vegas though is to use a proper container for that elementary stream. So using intermediate wav or muxing that AAC into a mp4 or something else might help.
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  3. Ok thanks.

    Originally Posted by _Al_ View Post
    One workaround for Vegas though is to use a proper container for that elementary stream. So using intermediate wav or muxing that AAC into a mp4 or something else might help.
    I wouldn't know how to do that.
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  4. I didn't mention that those AAC files are extracted from MKV files. I used mkvcleaver or FFMPEG to extract them, but they had issues in Vegas in both cases.

    Here's the details:

    Audio
    Format : AAC
    Format/Info : Advanced Audio Codec
    Format version : Version 4
    Format profile : HE-AAC / LC
    Bit rate mode : Variable
    Channel(s) : 2 channels
    Channel positions : Front: L R
    Sampling rate : 48.0 kHz / 24.0 kHz
    Frame rate : 23.438 FPS (1024 SPF)
    Compression mode : Lossy
    Stream size : 31.2 MiB (100%)

    Is the HE-AAC format the issue maybe?
    Last edited by Nico Darko; 21st May 2020 at 11:57.
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  5. Member
    Join Date
    Mar 2008
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    Open them in Audacity (with the FFmpeg helper installed) export as WAV and use those.
    Uncompressed WAV/PCM should always be accepted.

    Why would you convert to mp3 and suffer another generation quality loss?
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  6. Thanks I'll try that.

    The mp3 thing was just to check if the format fixed the issue or not.
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