<p>For anyone who needs the same thing as OP - MultitrackMaker for Mac does exactly this and is free.  Haven't tried it on Ventura, but it runs on Monterey.  <a href="https://www.mixagesoftware.com/index.html" rel="nofollow noreferrer">https://www.mixagesoftware.com/index.html</a></p>

CC BY-SA 4.0
2023-05-15T16:46:20.720Z
Thank you! Completely solved my problem and it runs fine on macOS 13.3.1.
Jonathon Irons
CC BY-SA 4.0
2023-05-14T00:12:03.820Z
2023-05-14T00:14:43.433Z
2023-05-14T00:14:43.433Z
MCG222
<p>I have a QuickTime .mov file which has 1 video track (ProRes 4444 XQ) and 8 mono audio tracks, which combined make up the 5.1 surround mix and a stereo mixdown. Per delivery requirements, I need to modify the audio track metadata to specify which channel each track represents - F, L, C, LFE, etc. - as visible in the attached screenshot from QuickTime Player.</p>
<p><a href="https://i.sstatic.net/38UdDl.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/38UdDl.png" alt="QuickTime Audio Details" /></a></p>
<p>I have successfully modified this using a very old copy of QuickTime Pro 7 running on Windows, but I would like to use ffmpeg on a modern system. The .mov file is exported from DaVinci Resolve, but there doesn't seem to be any option for modifying these labels. With ffmpeg, I have attempted numerous combinations of -map and -filter_complex flags, but I have not been successful yet.</p>
<p>I know I can keep the 8 audio tracks separate using the following command, but with the channel layout for each still listed as 'mono':</p>
<p><code>ffmpeg -i test_8mono.mov -c:v copy -c:a pcm_s24le -map 0:v:0 -map 0:a:0 -map 0:a:1 -map 0:a:2 -map 0:a:3 -map 0:a:4 -map 0:a:5 -map 0:a:6 -map 0:a:7 ~/Desktop/test1.mov</code></p>
<p>I know I can output only one of the 8 tracks using this command, and have the channel layout correctly listed as 'Left' in QuickTime Player:</p>
<p><code>ffmpeg -i test_8mono.mov -c:v copy -c:a pcm_s24le -filter_complex &quot;[0:a]channelmap='map=0':channel_layout=FL&quot; ~/Desktop/test1.mov</code></p>
<p>But I cannot figure what combination of these two will keep all 8 tracks separate (not multi-channel audio), but with channel_layout specified for each.</p>

<ffmpeg><audio><davinci-resolve><metadata>
ffmpeg - How do I modify Channel Layout labels only on 8 separate mono audio tracks?
Jonathon Irons
# ffmpeg - How do I modify Channel Layout labels only on 8 separate mono audio tracks?

(Asked by: username_0 on 2022-09-27)

I have a QuickTime .mov file which has 1 video track (ProRes 4444 XQ) and 8 mono audio tracks, which combined make up the 5.1 surround mix and a stereo mixdown. Per delivery requirements, I need to modify the audio track metadata to specify which channel each track represents - F, L, C, LFE, etc. - as visible in the attached screenshot from QuickTime Player.

[![QuickTime Audio Details](https://i.sstatic.net/38UdDl.png)](https://i.sstatic.net/38UdDl.png)

I have successfully modified this using a very old copy of QuickTime Pro 7 running on Windows, but I would like to use ffmpeg on a modern system. The .mov file is exported from DaVinci Resolve, but there doesn't seem to be any option for modifying these labels. With ffmpeg, I have attempted numerous combinations of -map and -filter\_complex flags, but I have not been successful yet.

I know I can keep the 8 audio tracks separate using the following command, but with the channel layout for each still listed as 'mono':

`ffmpeg -i test_8mono.mov -c:v copy -c:a pcm_s24le -map 0:v:0 -map 0:a:0 -map 0:a:1 -map 0:a:2 -map 0:a:3 -map 0:a:4 -map 0:a:5 -map 0:a:6 -map 0:a:7 ~/Desktop/test1.mov`

I know I can output only one of the 8 tracks using this command, and have the channel layout correctly listed as 'Left' in QuickTime Player:

`ffmpeg -i test_8mono.mov -c:v copy -c:a pcm_s24le -filter_complex "[0:a]channelmap='map=0':channel_layout=FL" ~/Desktop/test1.mov`

But I cannot figure what combination of these two will keep all 8 tracks separate (not multi-channel audio), but with channel\_layout specified for each.

**Tags:** ffmpeg, audio, davinci-resolve, metadata


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## 1 answers

### Answer by username_1 on 2023-05-14. Score: 0 | Accepted answer

For anyone who needs the same thing as OP - MultitrackMaker for Mac does exactly this and is free. Haven't tried it on Ventura, but it runs on Monterey. <https://www.mixagesoftware.com/index.html>

> **Comments:**
> **username_0**: Thank you! Completely solved my problem and it runs fine on macOS 13.3.1.  

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