What is YPbPr?
ja...@eentertainment.net
from the menu, 2 are s-video and one is YPbPr, what is this any explanation
would be much appreciative.
Robert Sawdey
because the 'luminance' (brightness) signal is seperated from the
'chromanance' (color)... old style 'video' single wire connections have
them mixed together, and the signals interfere with each other. Y/Pr/Pb
takes S-video a step further by seperating out color into Pr (total minus
red) and Pb (total minus blue) and carrying these on additional wires.
Similar (but not compatible) to the RGB signals a computer sends to its
monitor.
Gary Ludwick
video is where you hook a VCR or videocamera.
<ja...@eentertainment.net> wrote in message
news:84tomv$qq4$1...@news3.kcnet.com...
ja...@eentertainment.net
Basically I am looking for an HDTV down converter that can use these
components then, if they are indeed better than s-video. Unfortunately, I
have not seen any components that have this connection, dvd, sat, or hdtv.
If you know of any can you please send me some sort of list, thank you.
Y/Pr/Pb
> takes S-video a step further by seperating out color into Pr (total minus
> red) and Pb (total minus blue) and carrying these on additional wires.
> Similar to the RGB signals a computer sends to its
> monitor.
ki...@my-deja.com
carry only the HDTV & DTV out. Composite and S outs for
downconverted NTSC $860. Panasonic D-VHS for HD
recording using single cable firewire connection $710.
article <84vurs$8k$1...@news3.kcnet.com>,
Sent via Deja.com http://www.deja.com/
Before you buy.
Warner Johnston
> On the new Philips-Magnavox TV I purchased I have three inputs
> selectable
> from the menu, 2 are s-video and one is YPbPr, what is this any
> explanation
> would be much appreciative.
YPbPr is a component video input (3 input). Specifically Y is the
luminance (black and white TV). R, G, and B are a second component video
signal consisting of the Red, Green, and Blue channels. Pb is the blue
difference channel with an equation of Pb = (B-Y)/1.772 . Pr is the Red
difference chanel with an equation of Pr = (R-Y)/1.402.
The equations can be found in Standards EIA-770.1 or in SMPTE-125M
(which is the controling document)
Keith Johnson
for non-linear signals is
Y= 0.2126R + 0.701G + 0.087B
Pb = 0.5/1-0.087 x (B-Y)
Pr = 0.5/1-0.212 x (R-Y)
If you are interested in digging further I suggest you review
ANSI/SMPTE standard # 274M-1995/7.
Peter DiPrete
news:8565l8$n3k$1...@nnrp1.deja.com...
> In article <3875FA7D...@abc.com>,
> Warner Johnston <warner.w...@abc.com> wrote:
> > YPbPr is a component video input (3 input). Specifically Y is the
> Y= 0.2126R + 0.701G + 0.087B
> Pb = 0.5/1-0.087 x (B-Y)
> Pr = 0.5/1-0.212 x (R-Y)
>
> If you are interested in digging further I suggest you review
> ANSI/SMPTE standard # 274M-1995/7.
Quick followup:
I've just purchased a Mitsubishi HDTV, which will be delivered on Saturday.
It comes with 2 component inputs. One (ostensibly for the HDTV Receiver)
boasts YPbPr, while the other (ostensibly for the DVD player) boasts YCbCr.
What (if any) difference is there between these two? I'm concerned that my
Toshiba 5109 (read: Progressive Scan Component) outputs and the DirecTV (or
Dish) STB will both require the YPbPr inputs (guessing that the P might mean
"Progressive").
I apologize if this is a green-weenie question.
Thanks!
Peter
Paul Ozzello
the DTV input can accept either YPbPr or RGB inputs. the set autodetects
the format as long as there's a signal present when you switch to the dtv input.
this input can accept 480p, 540p, or 1080i formats (as well as 480i, of course).
the dvd input (input 3) can accept a YPbPr progressive component signal,
but only in 480p format. (no HD)
technically, YCbCr is supposed to be the nomenclature for DIGITAL version
of the signal. no sets (yet) accept digital input. it's all analog,
even if it came from a digital source (dvd or HD receiver.) thus it appears that
some manufacturers are incorrectly labelling things YCbCr when they
should be YPbPr for analog progressive component input/outputs.
anyways, your mits will work fine with the toshiba progressive player
connected to the dvd input (input 3). it would also work on the DTV input,
but you might as well leave that available for that HDTV receiver you'll
get eventually...
one thing to keep in mind is that NON-ANAMORPHIC dvd material (4:3 and letterboxed
widescreen movies) will appear horizontally stretched on your widescreen mits set.
this is because Mits doesn't support any aspect modes (zoom, etc) on the progressive
inputs. for such material, you'll need to use the s-video input rather than the
progressive input to maintain proper aspect ratio. (not a concern with 4:3 sets.)
hope that clears up some confusion...
John Fischer
"Paul Ozzello" <pa...@whistle.com> wrote in message
news:387CD510...@whistle.com...
> one thing to keep in mind is that NON-ANAMORPHIC dvd material (4:3 and
letterboxed
> widescreen movies) will appear horizontally stretched on your widescreen mits
set.
> this is because Mits doesn't support any aspect modes (zoom, etc) on the
progressive
> inputs. for such material, you'll need to use the s-video input rather than
the
> progressive input to maintain proper aspect ratio. (not a concern with 4:3
sets.)
I've found that the picture is so much better using the progressive component
inputs that I live with the slightly stretched picture rather than using the
S-video. A 2.35 non-anamorphic DVD viewed through the s-video and stretched
horizontally gives the exact same picture size as the progressive component
inputs - but looks like crap. Stretching the image vertically too makes it
even worse looking.
I'm not buying any more 2.35 movies that aren't anamorphic. Fortunately, only
about 5 out of the 50 movies I own are not anamorphic, so it's not that
critical. However, I won't be buying any more that aren't anamorphic.
I watched AP:TSWSM the other night on DVD, and it looked great. I am truly
impressed by how good a 480p DVD signal can look on the 46805.
Peter DiPrete
Thanks for your followups!
> I've found that the picture is so much better using the progressive
component
> inputs that I live with the slightly stretched picture rather than using
the
> S-video. A 2.35 non-anamorphic DVD viewed through the s-video and
stretched
> horizontally gives the exact same picture size as the progressive
component
> inputs - but looks like crap. Stretching the image vertically too makes
it
> even worse looking.
Sigh, I guess that means purchasing an (inexpensive?) doubler/scaler that
can do this externally. I haven't looked into the DVDO, Dwim or Faroudja's,
but I was trying to avoid spending the $$. I mostly bought the Mitsubishi
because of it's size (the 2nd story room is only about 11x13) and the price
($2,099 delivered to the room!). I'm not interested in spending as much on
a doubler or scaler, especially when I got that fine DVD player.
> I'm not buying any more 2.35 movies that aren't anamorphic. Fortunately,
only
> about 5 out of the 50 movies I own are not anamorphic, so it's not that
> critical. However, I won't be buying any more that aren't anamorphic.
UN-fortunately, the ratio of movies that are out there in non-anamorphic
format is more than 10:1, so putting up with distortion or switching to
S-VIDEO are probably my only choices.
> I watched AP:TSWSM the other night on DVD, and it looked great. I am
truly
> impressed by how good a 480p DVD signal can look on the 46805.
AP:TSWSM?
Peter DiPrete
larry <rid...@home.net> wrote in message news:387d2ee3.31461770@news...
>
> Peter;
>
> Tell us all where you got that price!! Please?
I gotta say, it's not for everyone. I found an "open" one on the floor of
the Good Guys in my area (San Jose, CA). It was marked down to $2,199 from
$2,999, which I thought was pretty good. We checked its service record, and
found that it had not been returned or ever serviced (a good idea suggested
by my 2nd salesman). Since I purchased the 5 year warranty on it, the sales
geek knocked another $100 off the price of the set (presumably to keep his
spiff on the warranty). Now I'm just hoping and praying that I have 3
problems with the set in *any* 12 month period. If I do, they will REPLACE
the set with a new one. As soon as the set comes home, I'm going to report
"poor picture quality," which will trigger a tech coming out and setting
convergence, etc, and will incur the 1st error.
I also found a 55" there for $2,499. A really good price, if you ask me.
Oh yeah, they deliver for free! To your room, not just to the curb.
So, now I picked up the DVD, good cables, and I have all the trinkets I need
for HD-DirectTV (sans receiver). A friend of mine is also cancelling his
DirecPC account, so he's GIVING me his dish and PC hookup. So sweet.
To be honest, though, I have not chosen the Satellite Receiver. Should I get
the RCA?
Cheers!
Peter