Question / Help Projector Preview - Need to change aspect ratio for preview output.

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Braedenb13

New Member
Hi,
I am trying to use OBS as a live-streaming option for services for my church.

In addition to the live stream output to Facebook Live, I would like the output feed (the same one that is outputted to Facebook), to also be displayed on a monitor (In this case a projector for the audience to see).
I found a way by using Right Click>Fullscreen Projector (Preview)> Monitor 2 [the projector monitor]. My issue is, the output is at 1920x1080p (16:9), and on the projector preview, it also displays at 1920x1080p (16:9), but the projector's output is a 1024x768p (4:3) due to the size of our projection screen. Therefore, it displays the black bars on the top and bottom, and is harder to see/read.

What I would like is to be able to scale the Fullscreen Projector (Preview) output to either Fit-to-screen, zoom-to-screen, or stretch-to-screen, or somehow be able to change the 16:9 preview to a 4:3 preview, without affecting the 16:9 output to the live stream.

I am using a Windows 10 PC. Thanks in advance.
 
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micahw

New Member
As far as I know, the aspect ratio will stay the same for a projector as the output. Frustrating, I know, but it would be distorted anyway. I would recommend actually rotating the display, so that the black bars are smaller and thus the preview is bigger.

Or you could try putting the monitor that you have OBS on, which is I assume a 16:9 ratio. You could put OBS on the 3:4.

I was going to recommend you force the monitor to be a slightly smaller resolution, but in line with the 16:9 ratio (for instance 1280 x 720), but I just tested it and found that it would just add black bars on the monitor itself, which is no where near a solution to the problem at hand.

Hope this helps somewhat!
Micah
 
koala

koala

Active Member
If you have only one scene you stream, there may be a workaround. Create a new scene and add your stream scene as scene source to it. This way you have a duplicate of your stream scene. Output this new scene to the projector instead of the streaming scene. Manipulate the source in a way it fits your projection screen.
 
koala

koala

Active Member
No. The aspect ratio of a projector is determined by the aspect ratio of the thing the projector is created for (source, scene, preview).

In case you are asking about the output of a stream or recording: the aspect ratio of that output is of course determined by the aspect ratio of the output resolution (Settings->Video).
 
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