<p>I did not manage to solve the source problem, but I found how to overcome the consequences.</p>

<p>It is indeed possible to edit the aspect ratio of the rendered video using ffmpeg:</p>

<pre><code>ffmpeg -i &lt;INPUT_FILE&gt; -aspect 4:3 -c copy &lt;OUTPUT_FILE&gt;
</code></pre>

CC BY-SA 4.0
2019-07-17T07:44:59.723Z
I re-wrap containers all the time so my fussy Vegas install will play nice with them. This command moves really fast, right? So that makes it a good solution.
user3643
CC BY-SA 4.0
2019-07-12T16:03:34.433Z
2019-07-12T16:03:34.433Z
Blacksad
<p>I am digitalizing Super 8 film with a <a href="https://www.somikon.fr/produit/scanner-de-pellicule-pour-films-8-mm-et-super-8-2/" rel="nofollow noreferrer">dedicated Somikon scanner</a>.</p>

<p>It outputs H264 - MPEG-4 AVC films in 4/3 (1440x1080).
When I open these films directly with VLC, there are displayed in 4/3, which is fine.</p>

<p>Then I add them in Sony Vegas Pro 12 to edit/modify them, but Vegas Pro believes that they are 16/9 clips: although the <code>Project [Projet]</code> and <code>Visualization [Visualisation]</code> fields are in 4/3, the <code>Display [Affichage]</code> is in 16/9 (600x338) by default:<a href="https://i.sstatic.net/vFSvx.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/vFSvx.jpg" alt="Display in 16/9"></a></p>

<p>I have to uncheck the <code>Simulate the peripheral image ratio [Simuler le format d'image du périphérique]</code> item to get back the original 4/3 aspect ratio:
<a href="https://i.sstatic.net/GmaqW.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/GmaqW.jpg" alt="Display back in 4/3"></a></p>

<p>When I render the project, Vegas generates a video in 4/3 with the right resolution (1440x1080), but the video player sofwares (VLC for example, see capture below) believe it should be displayed with a 16/9 aspect ratio.</p>

<p><a href="https://i.sstatic.net/JM0ig.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/JM0ig.jpg" alt="Correct resolution"></a></p>

<p><a href="https://i.sstatic.net/xBxUz.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/xBxUz.jpg" alt="But wrong default aspect ratio"></a></p>

<p>In conclusion, the resolution is good all along, but the default aspect ratio is wrongly set to 16/9 by/in Vegas Pro.</p>

<p>Is there a way to avoid that in the first place? </p>

<p>Or is there a way to correct it afterwards (once the rendered file is created)?</p>

<video><video-editor><vegas-pro><aspect>
Sony Vegas Pro 12 - 4/3 video wrongly considered as 16/9
Blacksad
# Sony Vegas Pro 12 - 4/3 video wrongly considered as 16/9

(Asked by: username_0 on 2019-07-09)

I am digitalizing Super 8 film with a [dedicated Somikon scanner](https://www.somikon.fr/produit/scanner-de-pellicule-pour-films-8-mm-et-super-8-2/).

It outputs H264 - MPEG-4 AVC films in 4/3 (1440x1080).
When I open these films directly with VLC, there are displayed in 4/3, which is fine.

Then I add them in Sony Vegas Pro 12 to edit/modify them, but Vegas Pro believes that they are 16/9 clips: although the `Project [Projet]` and `Visualization [Visualisation]` fields are in 4/3, the `Display [Affichage]` is in 16/9 (600x338) by default:[![Display in 16/9](https://i.sstatic.net/vFSvx.jpg)](https://i.sstatic.net/vFSvx.jpg)

I have to uncheck the `Simulate the peripheral image ratio [Simuler le format d'image du périphérique]` item to get back the original 4/3 aspect ratio:
[![Display back in 4/3](https://i.sstatic.net/GmaqW.jpg)](https://i.sstatic.net/GmaqW.jpg)

When I render the project, Vegas generates a video in 4/3 with the right resolution (1440x1080), but the video player sofwares (VLC for example, see capture below) believe it should be displayed with a 16/9 aspect ratio.

[![Correct resolution](https://i.sstatic.net/JM0ig.jpg)](https://i.sstatic.net/JM0ig.jpg)

[![But wrong default aspect ratio](https://i.sstatic.net/xBxUz.jpg)](https://i.sstatic.net/xBxUz.jpg)

In conclusion, the resolution is good all along, but the default aspect ratio is wrongly set to 16/9 by/in Vegas Pro.

Is there a way to avoid that in the first place?

Or is there a way to correct it afterwards (once the rendered file is created)?

**Tags:** video, video-editor, vegas-pro, aspect


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## 1 answers

### Answer by username_0 on 2019-07-12. Score: 2 | Accepted answer

I did not manage to solve the source problem, but I found how to overcome the consequences.
It is indeed possible to edit the aspect ratio of the rendered video using ffmpeg:
ffmpeg -i  -aspect 4:3 -c copy

> **Comments:**
> **username_1**: I re-wrap containers all the time so my fussy Vegas install will play nice with them. This command moves really fast, right? So that makes it a good solution.  

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