RE: Up-conversion / Up-scaling.

[admin_exported]

Could someone please explain the difference between these two specifications in relation to an AV Receiver.

 

[professorhat]

Upconversion - the process whereby an analogue video signal from a Component, S-Video or Composite source is accepted into the AV receiver and upconverted to a digtial signal so it can output it via the HDMI output. Without this, if you connect a Component, S-Video or Composite source into an AV amp to allow video switching, you'd also have to run the same analogue cable from the AV receiver to the TV as well.

Upscaling - the process where a standard definition source is transformed to fit an HDTV e.g. standard UK broadcasts are in PAL which has a resolution of 720x576 whereas a typical Full HD TV has a resolution of 1920x1080 - without upscaling, this PAL broadcast would be a small picture in the centre of the TV surrounded by black bars. Upscaling uses clever processes to effectively make up the detail to fill the 1920x1080 screen - thus the better the upscaling chip, the better an upscaled picture will look.

 

[Anonymous]

Basically if it comes into your Amp via HDMI and is transformed to 1080p then it's Upscaling.

But if it comes into your Amp through a different cable (eg component) then it is Upconverted to 1080p.

 

[professorhat]

Well, no that's not really correct. As detailed, upconverting is converting the signal from analogue to output digitally via HDMI. If it comes out at higher resolution than it went in, that's upscaling (e.g. 576 to 720 or 1080). In quite a few cases, both will be going on.

 

[Anonymous]

Apologies professor hat,

I was merely trying to put it in layman's terms for Wagia.