Streaming Setup, Iterated, Again

The upgrade to the Individual Computers Indivision AGA MK3 flickerfixer made another iteration of my streaming setup necessary:

Streaming Setup

It is a bit unfortunate that I had to buy an HDMI splitter to replace the DVI splitter that I bought only recently. But I am very happy with the quality of the video signal that I now get out of my Amiga 1200 into my PC. The Indivision AGA MK3’s scaler as well as its on-screen display make all of this worthwhile.

Indivision AGA MK3

My Indivision AGA MK3 arrived from Individual Computers yesterday.

Indivision AGA MK3

I wanted to wait with its installation, though, until my CA-PSU had also arrived. Now that it has, it was time to remove the old Indivision AGA MK2cr flickerfixer and to install the Indivision AGA MK3.

Indivision AGA MK3 in Amiga 1200

After reading about problems others have had with the Indivision AGA MK3 on the Individual Computers support forum, I was a bit apprehensive about turning on my Amiga 1200 after I finished installing the new flickerfixer. But the greater my relief was when everything “just worked” for me before I even installed the new firmware.

And now it is time to iterate my streaming setup. Again.

CA-PSU

Today my CA-PSU, which stands for Compact Amiga Power Supply Unit, arrived from Individual Computers.

CA-PSU

The CA-PSU replaces the ATX power supply that I used as a temporary solution after I learned that my original Amiga 1200 power supply unit did not provide enough power after I installed the RapidRoad USB expansion.

Streaming Setup, Iterated

While playing “Rick Dangerous” during my first live stream, I did notice an interference in the video signal coming from my Amiga 1200. It did not look too bad, though, and I decided to worry about it later.

When I captured a video of installing “Die Kathedrale”, the interference became much more prominent:

I am not sure what causes this interference just yet, but at this point I am almost certain that it is caused by my current power supply. I will know for sure whether or not the power supply is the culprit when my Compact Amiga Power Supply Unit from Individual Computers arrives.

Regardless of whether I will be able to solve this video signal interference issue or not, I began to wonder whether it is a good idea to use the analog video output of my Amiga 1200 in the first place.

The Amiga’s Lisa chip produces a digital video signal that is converted to an analog signal for output. The Open Source Scan Converter converts this analog signal back to a digital signal for video capture.

All the while, though, I have a flickerfixer which takes the digital video signal right from the Lisa chip and makes it available through DVI.

So the question is: can I capture video from my Amiga’s DVI port?

I acquired a DVI-to-HDMI adapter for connecting my Amiga’s flickerfixer’s DVI output to my video capture device which required an HDMI connection. The result looked great:

Good DVI Output

I have configured my Amiga 1200’s Workbench to use a graphics resolution of 1280x512 (PAL:Super-High Res Laced). Games, though, use a much lower resolution. The same applies to a default Workbench setup. Here is a capture of the video signal that I got for a common low resolution:

This is, of course, not useful. I asked what was going on in the support forum for my Individual Computers Indivision AGA MK2cr flickerfixer and quickly got a useful response from its designer. All I needed to do was change the output mode of the flickerfixer for the Amiga’s low resolution from “800x600 60 Hz” to “1280x1024 60Hz”.

Here is a schematic of my new streaming setup:

Streaming Setup

Streaming Setup

Inspired by my friend Daniel, I started to stream from my Amiga 1200 to Twitch today.

This is a schematic of my streaming setup:

Streaming Setup

This is what it looks like in OBS Studio on my PC:

OBS Studio

And this is what I see while streaming:

Rick Dangerous on Amiga 1200