Interlace vs Progressive

[zigzag03]

My Sony 5 disk dvd changer has a switch on the back for interlace or progressive. My reciever will upconvert the component signal to hdmi 1080p, but my monitor is 1080i. To me they don't look much different. Anyone know what it's supposed to be set at?

 

[MDS]

Your monitor is not 1080i. That is the highest resolution it can accept as input. All HDTVs have a fixed resolution, are progressive scan, and will deinterlace (convert to progressive scan) and scale if necessary.

If you set the dvd player to interlaced it will output 480i. The TV will deinterlace it to 480p and then scale it to its native resolution.

If you set the dvd player to progressive, the dvd player will be doing the deinterlacing to 480p. The TV will still scale to its native resolution.

Which setting you choose on the dvd player depends on whether the player or the TV does the better job of deinterlacing and the only way to tell is to try it both ways. There probably won't be much difference and I'd use the progressive setting on the player.

 

[Joe Schmoe]

Sony players use a proprietary deinterlacing algorithm ("Precision Cinema Progressive") that works very well. It may be superior to your TVs deinterlacing.

 

[j_garcia]

The display having a better deinterlacer is rare, most players these days will do a better job. Sony's proprietary deinterlacing is OK, but not top notch IMO; however unless you have a very nice display, the player will likely still do a better job.