Issues with imported AAC files in Vegas Pro

[Nico Darko]

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.

[Nico Darko]

No one knows?

[_Al_]

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.

[Nico Darko]

Ok thanks.

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.

[Nico Darko]

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?

[davexnet]

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?

[Nico Darko]

Thanks I'll try that.

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