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Question of the Day: Which is the most hair-raising South African mountain pass you've driven?
Original, Native, 720p, 1080i...
- Thread starter marlboro
- Start date
Jola
Honorary Master
I spent an hour or two fiddling with this earlier this evening.
1080i seems to work best with my TV, ie I seem to get the sharpest image. I guess that this could differ from TV to TV.
The HD signal is a heavily compressed 720p, so not sure if a higher setting really helps - but my TV seems to like 1080i.
What TV do you have?
Jola
Honorary Master
I've got a 42" HD Ready Sony Plasma.
The highest resolution that i can do is 1080/60i. The Baby Pace can work at 1080/50i, and this seems to be fine.
But my TV is a 100Hz TV, so it upscales the frame rate, seems to do a good job.
The highest resolution that i can do is 1080/60i. The Baby Pace can work at 1080/50i, and this seems to be fine.
But my TV is a 100Hz TV, so it upscales the frame rate, seems to do a good job.
Wasp_21
Expert Member
Just for info,
Although HDReady Tv's SAY 1080i, that is only the signal input, and not the display resolution. On 720 sets, there are only enough pixels to output at 720, not 1080. It's all about the input vs output.
Although HDReady Tv's SAY 1080i, that is only the signal input, and not the display resolution. On 720 sets, there are only enough pixels to output at 720, not 1080. It's all about the input vs output.
greg_SA
Expert Member
I think it will depend on each TV.
The DSTV signal that the decoder receives is 720p, so if your TV is HD ready (720p), then it is probably best to choose 720p output from the decoder to the TV, so that no scaling is done.
For a Full HD TV, the signal has to be scaled at some point from 720p to 1080p. In this case there are 2 options, let the decoder upscale the 720p to 1080i and the TV will then change this to 1080p. The alternative is let the decoder output 720p and let the TV scale this to 1080p. Depending on the scaling quality in the DSTV decoder and TV, the results can be slightly different - so try both
The DSTV signal that the decoder receives is 720p, so if your TV is HD ready (720p), then it is probably best to choose 720p output from the decoder to the TV, so that no scaling is done.
For a Full HD TV, the signal has to be scaled at some point from 720p to 1080p. In this case there are 2 options, let the decoder upscale the 720p to 1080i and the TV will then change this to 1080p. The alternative is let the decoder output 720p and let the TV scale this to 1080p. Depending on the scaling quality in the DSTV decoder and TV, the results can be slightly different - so try both
I think it will depend on each TV.
The DSTV signal that the decoder receives is 720p, so if your TV is HD ready (720p), then it is probably best to choose 720p output from the decoder to the TV, so that no scaling is done.
For a Full HD TV, the signal has to be scaled at some point from 720p to 1080p. In this case there are 2 options, let the decoder upscale the 720p to 1080i and the TV will then change this to 1080p. The alternative is let the decoder output 720p and let the TV scale this to 1080p. Depending on the scaling quality in the DSTV decoder and TV, the results can be slightly different - so try both
I didn't know that the Full HD TVs upscale to 1080p. I thought they just display whatever the output is. Are you sure about what you're saying?
Last edited:
greg_SA
Expert Member
Yep, I'm sure... Any TV or screen has a certain number of pixels - its native resolution (normally 1920 x 1080 for Full HD). So what ever signal is sent to the screen needs to be converted to match its native resolution. If you sent say a 1280 x 720 (HD ready signal) to the screen, and it wasn't scaled, then only a part of the screen would show a picture.