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denon upconversion questions

711 Views 12 Replies 6 Participants Last post by ranster, Nov 1, 2004

adamofwales

Discussion Starter · Oct 25, 2004

Hi,

I have a question.

I was recently looking at a denon receiver and it had component upconversion, meaning you could upconvert any video signal to a component HD signal 1080i for example.

My question is, doesn't you HD TV already do that? I mean if you have a HDTV and you hook up a dvd player to it, it is going to convert the signal to 1080i.

What's the benefit of having the Denon do it?

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JorgeLopez11

· #2 · Oct 25, 2004

Adamofwales, let me try an explanation.

No. The term "upconversion" refers to a signal conversion known as transcoding. It allows you to convert composite or S-Video signals to component and it is intended to allow users use just one cable from the receiver to the TV set. So it can be defined as a matter of convenience because it allows you to switch between different video sources.

New receivers such as the Denon 5805 or the H/K 7300 includes the Faroujda 2310 video processor, which actually can "scale" a standard video signal to a high definition signal. So, it allows you to scale a composite or VHS signal up to a 1080i, for instance. The scaling process then can be defined as a video signal upgrading.

Some HDTV sets has the same Farodja chip with the saling function onboard

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adamofwales

Discussion Starter · #3 · Oct 25, 2004

Jorge,

Ok, cool, thank you for the explanation.

That makes more sense.

So there's really two different things going on.

Transcoding and then scaling...

Thanks for the info, I'm going to look into the Denon 5805.

Thanks again,

aow

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adamofwales

Discussion Starter · #4 · Oct 25, 2004

is there anything a little bit cheaper than the 5805 that's still a Denon and still can do scaling?

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adamofwales

Discussion Starter · #5 · Oct 25, 2004

Jorge,

Thanks for helping me make sense of such difficult information. Everything is so confusing at first thanks again.

Let me ask you this:

Will the Faroujda 2300, not the 2310 also do the scaling? Or does it have to be the 2310?

Thanks in advance,

aow

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adamofwales

Discussion Starter · #6 · Oct 25, 2004

anyway

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psblake

· #7 · Oct 25, 2004

from the avr1705 and up have this function. They all do not use the Faroudjia chip though. But they still upconvert to 480p

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MarginWalker

· #8 · Oct 25, 2004

I thought most receivers without processors like the faroudja just convert to component, they do not de-interlace, so the signal is 480i not 480p, the resulting picture is 480p because of the TV's internal line doubler? I would think it would be better to leave the signal at 480i in that case, so that proper colorspace is always applied and there are not two standards like at 480p.

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JorgeLopez11

· #9 · Oct 25, 2004

Hi all,

Well, the upconversion feature is actually present in the newest models from most manufacturers, but very few have scaling capabilities. I reiterate that the transcoding feature is intended for convenience. So no signal upgrading is done.

Regarding the faroudja chips, they incorporate a technology calles DCDi wich stands for Directional Correlational deinterlacing. The deinterlacing process is reviewed in detail here http://www.dcdi-video.com/technology...-overview.html .

I found these paragraphs in the web which refer to newest Faroudja processor (I can't remember the web direction. Sorry guys

)

Quote:

The DVP4000 is a full-featured digital video processor offering HDTV "cross-conversion" technology. In other words, it can convert analog or digital 1080i HDTV to progressive 1080p, then scale its output to the native resolution of the digital display (1366 x 768 for example). The processor can also cross-convert HDTV rates of 480p and 720p, expanding HDTV compatibility for the expanding market of digital displays, including plasma monitors and DLP, LCoS and LCD projectors. The DVP4000 also offers a DVI output.

Faroudja's renowned video processing technologies, including 3:2 pull-down and DCDi deinterlacing, are claimed to "dramatically improve the color, detail and motion for all types of large-screen digital displays." The $14,995 DVP4000 has an internal DVD drive, insuring a pure digital signal path from the DVD through the processor to the display. It also supports DVD-Audio and SACD playback. The DVP4000 has a full complement of analog inputs for standard sources, such as satellite, cable and broadcast TV.

IFAIK there are three versions of the Farodja FLI 2300 video processor: 2300, 23001 and 2310. I think the 2310 is present in receivers while the others are used in flat panel TV sets. I hope somebody would confirm the data or correct me if I'm wrong

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adamofwales

Discussion Starter · #10 · Oct 25, 2004

Quote:

Originally posted by JorgeLopez11
Hi all,

Well, the upconversion feature is actually present in the newest models from most manufacturers, but very few have scaling capabilities. I reiterate that the transcoding feature is intended for convenience. So no signal upgrading is done.

Regarding the faroudja chips, they incorporate a technology calles DCDi wich stands for Directional Correlational deinterlacing. The deinterlacing process is reviewed in detail here http://www.dcdi-video.com/technology...-overview.html .

I found these paragraphs in the web which refer to newest Faroudja processor (I can't remember the web direction. Sorry guys )

IFAIK there are three versions of the Farodja FLI 2300 video processor: 2300, 23001 and 2310. I think the 2310 is present in receivers while the others are used in flat panel TV sets. I hope somebody would confirm the data or correct me if I'm wrong

Well, it sounds like there are many possibilities!!!!!!!!!!!!

Thanks Jorge!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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adamofwales

Discussion Starter · #11 · Oct 25, 2004

Quote:

Originally posted by psblake
from the avr1705 and up have this function. They all do not use the Faroudjia chip though. But they still upconvert to 480p

Thanks pcsblake, for laying things down like this.

It appears that there's a little bit of confusion relating to no Faroudja units being able to actually scale to 480p vs just putting out 480i. Either way, if you've got an internal line dounbler in your tv, apparantly you could still be looking at 480p.

Apparantly, the quality won't be as good as a straight Faroudha scale, so finding a Faroudja chip is probably best.

Thanks for the info psblake!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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cyborgx

· #12 · Oct 31, 2004

Concerning the 8505, I understand it has a feroudja chip and is capable of deinterlacing and scaling, the analog signals. Assuming it converts to digital to do this, why do they not also give the option to output this signal via the Digital video outputs?

Does anyone think this could be fixed by a software update, or would it require work on the hardware.

Sorry this is a cross post, but need to get an answer in the next couple of days.

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ranster

· #13 · Nov 1, 2004

Quote:

Originally posted by adamofwales
is there anything a little bit cheaper than the 5805 that's still a Denon and still can do scaling?

As was previously mentioned, the H/K 7300 can do this and is MUCH less than the Denon 5805. At this price point, make sure you have a chance to demo the equipment (or take your speakers and discs to the store!). Let us know what you decide!

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