What is the difference between 'upscaling' & 'upconverting?

[jagadishareddy]

dear friends,

I don't know where to post this question?

What is the difference between 'up scaling' & 'up converting'?
because it is mentioned in some avrs that some have up scaling and some have
up converting.

 

[Kittu]

Video scaler - Wikipedia, the free encyclopedia

HTH
Kittu

 

[Kittu]

Duplicate post . Mods can delete it.

 

[ememm]

niely explained here..
http://www.hifivision.com/av-enhancers-room-acoustics/3017-upconversion-vs-upscaling.html

 

[ranojoy]

Upscaling = change from 480 lines to 720/1080 lines (or any other figure(s)).
Upconverting = conversion from composite/component to HDMI. (courtesy zervinb).

Simply put, if one wants to watch the 480i pic of a DVD on a 720p/1080p HDTV, the DVD signal has to undergo both these changes before it can be shown. These changes can be done by the DVD player itself or the AVR or even the TV.

Further recommended reading :-

http://www.avsforum.com/avs-vb/showthread.php?t=477740

 

[zervinb]

Upscaling, as ranojoy rightly puts, is converting 480 (NTSC) or 576 (PAL) lines to 720 or 1080 lines.

Upconverting, to the best of my knowledge, is converting a video signal from composite and component inputs to an HDMI output. Thus, an AVR which upconverts video will convert composite and component video inputs into a single HDMI output. The advantage of this, is that the AVR is connected to the display via a single HDMI cable.

 

[ranojoy]

Ah, zervinb, you are right, my friend ! I stand corrected !!
I'll suitably edit my post. Thanks for pointing out.

 

[CANDUU]

Video scaler - Wikipedia, the free encyclopedia

HTH
Kittu

Informative kittu bhai;-)

 

[hemant0285]

To scale something means increase its dimensions..(pixels here)) .
To convert means changing from one form to another.. ITS tat simple..
Jus adding a prefix UP... means it is increasing/changing to somewhere at a higher level...hyeah:
...
Hope it helps

 

[prankey]

They both represent the same thing of upscale or upcovert to higher resolution. Lets not get confused with names and make a theory out of it.

 

[spirovious]

In short-
1.Upscaling-Increasing the pixel nos(480 to 1080p,etc)
2.Upconverting-Just routing from one input to another without changing signal format(composite to HDMI)

 

[venkatcr]

2.Upconverting-Just routing from one input to another without changing signal format(composite to HDMI)

Spiro, in fact, the signal is changed completely. Component and composite are analogue connections, while HDMI is digital. Thus, there is a internal ADC done on the signals.

Cheers

 

[spirovious]

Spiro, in fact, the signal is changed completely. Component and composite are analogue connections, while HDMI is digital. Thus, there is a internal ADC done on the signals.

Cheers

Sorry stated wrongly.I wanted to just say that no conversion from 480 to 1080p.Thanks for correction.

 

[prankey]

Sorry stated wrongly.I wanted to just say that no conversion from 480 to 1080p.Thanks for correction.

If there is no conversion, why would you call it UPCONVERSION??? Just changing from composite to component or HDMI is just CONVERSION.

Even if you are "converting" from 480i to 480p that is UPSCALING OR UPCONVERSION. Infact, a regular composite or component output only has PAL or NTSC format, which has nothing to do with digital resolutions like 480i or 576i.

These days the bandwidth of component output has been extended to squeeze HD signals through it as well. However, if you are changing from any SD or HD to a higher resolution signal, that is UPSCALING which might also be referred as UPCONVERSION.

Why are you making a theory out of it? Different vendor use different terms for SIMILAR process. Difference lie in processing algorithms and not these terms!

 

[venkatcr]

However, if you are changing from any SD or HD to a higher resolution signal, that is UPSCALING which might also be referred as UPCONVERSION.

You are getting confused. These two terms are not complementary and are not even closely related. 'Scaling' refers to a change in the resolution of an image. 'Conversion' refers to the way a signal is transmitted. Scaling refers to only video signals, while conversion could include both audio and video signals.

Cheers