Today's Message Index:
----------------------
1. 02:25 AM - Re: Various hackery (XDP-210EQ) (DB)
2. 06:19 AM - Re: Various hackery (XDP-210EQ) (Ethan)
3. 09:01 AM - Re: Various hackery (XDP-210EQ) (Matt Dralle)
4. 07:04 PM - Re: Various hackery (XDP-210EQ) (Mark Laird)
5. 08:28 PM - PIN 24!! CDX-757MX (Ethan)
Message 1
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| Subject: | Re: Various hackery (XDP-210EQ) |
--> XDP4000X-List message posted by: DB <dbotel6500@rogers.com>
Roland M wrote:
> Yeah that is a tough one, but why is that important? (Out of curiousity)
>
>For DVD playback? (Keep in mind you'd only be able to use a PCM-converted
>(2-ch) stream in the case of DVD playback. Meaning Dolby Digital would be
>fine if you set the player to PCM/2ch, but DTS would not unless the player
>had a built in DTS decoder (i.e. has 6 ch. analog out as well).)
>
>
Hi Roland,
Due to the delay effects of the XDP4K, you will probably not be able to
use a DVD player, or watch
movies, due to the lenghty delay that the XDP causes. (It processes the
signal, but delays it enough that
the picture does not sync with the sound)
I think matt tried this, and this was the problem. So no digital video.
(I'd assume analog ins would suffer
the same sync fate though) :-(
Daniel
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Message 2
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| Subject: | Re: Various hackery (XDP-210EQ) |
--> XDP4000X-List message posted by: Ethan <telmnstr@757.org>
> Due to the delay effects of the XDP4K, you will probably not be able to
> use a DVD player, or watch
> movies, due to the lenghty delay that the XDP causes. (It processes the
> signal, but delays it enough that
> the picture does not sync with the sound)
> I think matt tried this, and this was the problem. So no digital video.
> (I'd assume analog ins would suffer
> the same sync fate though) :-(
> Daniel
I was the one that mentioned it. I only have a 210EQ at this point and
there isn't a noticeable delay. I guess it might be possible to come up
with a video delay to allow video with the 4000. Just add a tivo and your
set :-)
Message 3
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| Subject: | Re: Various hackery (XDP-210EQ) |
--> XDP4000X-List message posted by: Matt Dralle <dralle@matronics.com>
At 02:28 AM 2/11/2005 Friday, you wrote:
>--> XDP4000X-List message posted by: DB <dbotel6500@rogers.com>
>
>Roland M wrote:
>
> > Yeah that is a tough one, but why is that important? (Out of curiousity)
> >
> >For DVD playback? (Keep in mind you'd only be able to use a PCM-converted
> >(2-ch) stream in the case of DVD playback. Meaning Dolby Digital would be
> >fine if you set the player to PCM/2ch, but DTS would not unless the player
> >had a built in DTS decoder (i.e. has 6 ch. analog out as well).)
> >
> >
>Hi Roland,
>
>Due to the delay effects of the XDP4K, you will probably not be able to
>use a DVD player, or watch
>movies, due to the lenghty delay that the XDP causes. (It processes the
>signal, but delays it enough that
>the picture does not sync with the sound)
>
>I think matt tried this, and this was the problem. So no digital video.
>(I'd assume analog ins would suffer
>the same sync fate though) :-(
>
>Daniel
Yup, that's true. Both analog and digital input delay the signal about .5
seconds. I might be just full of it, but it seems like the longer the 4k
is on the longer the delay becomes. I have a DVD player connected in
through the analog input. It is disconcerting watching the video with the
sound delayed, but its a little 7" screen and I've kind of gotten to used
to it and it doesn't really bother me all that much.
Matt
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
Message 4
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| Subject: | Various hackery (XDP-210EQ) |
--> XDP4000X-List message posted by: "Mark Laird" <mark_laird@hotmail.com>
Maybe I've got this wrong, but since you have to enter a distance for the
time alignment, doesn't it send the audio signal to the furthest speaker
first? For example, if you have one channel set for 100 ft. and another at 0
ft. the channel at 100 ft. would get its signal first since it needs more
time to reach you than the one at 0 ft. So, assuming the default signals in
the 4000x are all set at a distance of 0 (feet, inches, whatever it is...)
then by default all signals have the maximum delay. If you take all the
channels and time align to the largest distance possible, wouldn't you be
speeding up the delay in the audio for all signals? Hopefully, whatever the
max distance is will speed it up by .5 seconds. Of course, this can only
work if the 4000x does time alignment based off of an absolute control, and
doesn't just compare the distances to each other. Am I wrong? Anyone tried
it already?
Mark
Original:
Yup, that's true. Both analog and digital input delay the signal about .5
seconds. I might be just full of it, but it seems like the longer the 4k
is on the longer the delay becomes. I have a DVD player connected in
through the analog input. It is disconcerting watching the video with the
sound delayed, but its a little 7" screen and I've kind of gotten to used
to it and it doesn't really bother me all that much.
Matt
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
Message 5
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| Subject: | PIN 24!! CDX-757MX |
1.27 SUBJ_HAS_UNIQ_ID Subject contains a unique ID
--> XDP4000X-List message posted by: Ethan <telmnstr@757.org>
Okay, according to the schematic diagrams my friend bought off of some
Russian guy (Sony, get a clue)...
Pin 24 on IC 201 (System Controller) DOUT_SEL = digital output. L = DOUT
Still digging to see where the S/PDIF would be pulled from pin 85 on
IC101... that is, assuming there isn't an issue with the mp3 decoder IC
operating independantly of the standard CD audio decoder...
BTW, http://users.757.org/~telmnstr/pics/cdx757mx_sm.pdf
--
// Ethan O'Toole
// http://users.757.org/~ethan
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