Downscaling Chronicles 15: Analog Way Tetra Vio. 240p 15KHz Output to a CRT with Custom Timings

Analog Way’s Tetra Vio TVC401 is a commercial scaler that has user-programmable custom resolutions, capable of 240p output from HDMI and other SD/SD video sources. Let’s see if the impressive set of inputs and outputs are enough to trump the versatility and reliability of the Corio2 tvONE’s.

Tetra Vio User Manual
https://www.analogway.com/files/uploa...

For best 720p to 240p downscaling results, I used 1280x240 60Hz. However this resolution did not output a synchronised signal for all inputs. Other timings that worked were 720x240 and 320x240, at the expense of scaling and compressing the horizontal pixels.

To calculate custom timings:
https://xtiming.sourceforge.net/cgi-b...
https://www.epanorama.net/faq/vga2rgb...
Guspaz’s RetroTink 4K timings calculator
https://guspaz.github.io/video_timing...

VGA to Megadrive2/Genesis2 dongle:
VGA input with case
https://a.aliexpress.com/_mKphjoY
VGA or DVI input without case
https://a.aliexpress.com/_mPnU3lE

Credits:
​⁠‪@crt_rex‬
The realest crt streamer you’ll find anywhere. Follow on YouTube and watch live streams on twitch
https://m.twitch.tv/crt_rex/home
   / @crt_rex  

Slow clapping meme
   • Slow Clap  

Sample used for The Lord of the Lag by MaestroGaming
   • Epic Lotr music mix l Lord of The Rin...  

#crt #retrogaming #downscaling

00:00 Intro
05:24 Lag and Downscaling
11:44 Score and final thoughts