# Convert audio to AAC and remux video

**URL:** https://discussion.mcebuddy2x.com/t/convert-audio-to-aac-and-remux-video/1963
**Category:** Plex
**Created:** [July 25, 2018, 7:47am UTC](https://discussion.mcebuddy2x.com/t/convert-audio-to-aac-and-remux-video/1963 "2018-07-25T07:47:38Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Spikemixture](https://discussion.mcebuddy2x.com/user_avatar/discussion.mcebuddy2x.com/spikemixture/32/735_2.png) [@Spikemixture](https://discussion.mcebuddy2x.com/u/Spikemixture)
#### Post date: [July 25, 2018, 7:47am UTC](https://discussion.mcebuddy2x.com/t/convert-audio-to-aac-and-remux-video/1963/1 "2018-07-25T07:47:38Z")

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I remux all my mkv’s to mp4. I would like to convert audio to AAC (stereo) at the same time .

How can I do this ?

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### Author: ![Goose](https://discussion.mcebuddy2x.com/letter_avatar_proxy/v4/letter/g/5f9b8f/32.png) [@Goose](https://discussion.mcebuddy2x.com/u/Goose)
#### Post date: [July 26, 2018, 12:18am UTC](https://discussion.mcebuddy2x.com/t/convert-audio-to-aac-and-remux-video/1963/2 "2018-07-26T00:18:37Z")

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See the MP4 normal profile for how to convert audio to AAC

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<div class="post-metadata">

### Author: ![Spikemixture](https://discussion.mcebuddy2x.com/user_avatar/discussion.mcebuddy2x.com/spikemixture/32/735_2.png) [@Spikemixture](https://discussion.mcebuddy2x.com/u/Spikemixture)
#### Post date: [July 26, 2018, 3:28am UTC](https://discussion.mcebuddy2x.com/t/convert-audio-to-aac-and-remux-video/1963/3 "2018-07-26T03:28:59Z")

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But I don’t wish to convert Video.

I use the unprocessed option an that doesn’t touch video or audio.

I want it to convert audio to AAC and keep video unchanged

would this work

> [MP4 Unprocessed & AAC]  
> Description=Very fast but limited functionality. Use this profile if the original video has H.264/MPEG video and you want to remove the commercials and convert the file format to MP4 (e.g. WTV to MP4) without any additional processing (deinterlace, resizing, volume, cropping etc). It will copy the original video and audio and put it into a MP4 format unaltered in quality.  
> order=ffmpeg  
> ffmpeg-general=-threads 0  
> ffmpeg-video=-ss 0 -vcodec copy -sn  
> ffmpeg-audio=-acodec copy  
> **ffmpeg-audioac3=-acodec libfdk\_aac -ab 160k -cutoff 18000 -map 0:a**  
> ffmpeg-AudioOptimized=true  
> ffmpeg-ext=.mp4  
> ffmpeg-audiodelay=skip  
> PreConversionCommercialRemover=true  
> FixedResolution=true  
> SkipCropping=true  
> AutoDeinterlace=false

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<div class="post-metadata">

### Author: ![Goose](https://discussion.mcebuddy2x.com/letter_avatar_proxy/v4/letter/g/5f9b8f/32.png) [@Goose](https://discussion.mcebuddy2x.com/u/Goose)
#### Post date: [July 26, 2018, 6:08pm UTC](https://discussion.mcebuddy2x.com/t/convert-audio-to-aac-and-remux-video/1963/4 "2018-07-26T18:08:36Z")

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Yes it should. If the audio track is ac3 it’ll convert it otherwise it’ll copy it.