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AAC CBR / VBR - mediainfo logs

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Maciej Sawicki
AAC CBR / VBR - mediainfo logs
on Jun 17, 2015 at 11:51:07 am

Hey Guys,

I need to deliver a file in Mpeg 4, AAC constant bitrate 5 mbit/s. Sounds quite easy but...

Im able to acheive a file that mediainfo claims to be CBR audio, but only when there is no audio on the timeline. I mean, im exporting a file that contains audio , but on the timeline there is no sound.

As soon as I export a file that contains audio (there is voice, music etc.) on the timeline media info says its VBR...

I find it really strange and frustrating. Im using Premiere CC. This how it looks:

1) Export settings

2) This will give CBR:

3) This will give VBR:

Seems to be magic... Any ideas :)?

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