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Unkomprimiertes HD Signal abgreifen...

Uncompressed HD signal tap ...



Frage von flowmotion:
Mai 2007

What opportunities are there because the HD signal from the component output record?

My Camera is uncompressed material from the component output and I would like to record the material. Is no SDI OUT - ie approximately 1500Mbit / s traffic.

What opportunities are there? Hard disk recorder?



Antwort von HeikoS:

The most elegant solution currently offers the Io-HD of AJA in conjunction with a MacBook and FCP6. This one is even "relatively" mobile with.



Antwort von flowmotion:

Thank you for the tears of joy. Posh solution and with the real-time compression is synonymous the traffic handlebar.

Sucks that I neither Apple nor FinalCut Studio possess. The system I would be very irritating. Even if "only" works 4:2:2.

Are there other possibilities?








Antwort von HeikoS:

I do not know, but synonymous hope that in the foreseeable future as a part synonymous anymore without calculator and direct a la Fire doors to disk recording. So exactly this:

http://www.bonsaidrive.com/bonsai.html

in HD.



Antwort von Quadruplex:

"flow motion" wrote:
My Camera is uncompressed material through the component output from

Unfortunately you do not write what the camera is. If there is a normal consumer camcorder is, I am afraid that your project would be pointless anyway. As far as I know, because the signal is always determined by the MPEG-2-or H.264 encoder (but not guaranteed).



Antwort von flowmotion:

We are still making s.der which camcorder it should be. The fact is that it may be the XHA1. The Sony engineers have not yet responded.

Support for Canon and Sony übrigends pathetic - more than a month, the question today and spins of the Canon one.

At least the staff was correct and technically versed. He is also on all the questions I asked. That has really surprised me.

But for months and wait until an answer is already shit. Let's see when the Sonyanpacken of.



Antwort von usul:

"flow motion" wrote:
The Sony engineers have not yet responded.


If there be a Sony, I would certainly not over the component output, but via HDMI. There are quite cost-effective solutions.



Antwort von flowmotion:

CDN $ 1684.88 cost of a Xena LHe - so you can uncompressed HD via BNC Jacks record (4:2:2) but somehow I feel the only HD-SDI I?

Had at least much cheaper than the Apple device.



Antwort von Valentino:

"flow motion" wrote:
Sucks that I neither Apple nor FinalCut Studio possess. The system I would be very irritating. Even if "only" works 4:2:2.

Why the "only" when the cameras 4:2:2 internal synonymous only with a Farbsampling work of 4:2:2, then synonymous but not a 4:4:4 signal s.Componentenausgang mandrel.

With a Sony (for example, FX7 or V1) would be a bit easier because you have the HDMI output with a Blackmagic card for around 300 euros can record the signal. This requires only Final Cut Pro or Adobe Premiere.
With Canon you can with the XH-A1 HD signal only via YUV and tap the card with YUV input with almost 1000 Euros a lot more expensive.
The XH-G1 is in spite of the HD-SDI, in my view no real alternative, because this is simply overpriced.
For a few euros more, you can almost have a used XL-H1 buy.

Synonymous Remember, the Picture for longer cable YUV worse when HDMI is then of p.10 to 15 meters to the problem, but a real Qualitätsverlusst I do not know.
For HD-SDI, even up to 50 meters possible and without losses.



Antwort von PowerMac:

"Valentino" wrote:
"flow motion" wrote:
Sucks that I neither Apple nor FinalCut Studio possess. The system I would be very irritating. Even if "only" works 4:2:2.

Why the "only" when the cameras 4:2:2 internal synonymous only with a Farbsampling work of 4:2:2, then synonymous but not a 4:4:4 signal s.Componentenausgang mandrel. (...)


Right. 4:2:2, the internal and you can tap. The io HD is ideal for this.



Antwort von flowmotion:

The DeckLink HD Extreme can indeed synonymous, as I've just seen. So is not so prohibitive. That is really the ideal solution if you with HDV cameras keyen needs, huh?

I am with the Farbsampling not like this. Why do not you get because when the 4:4:4 uncompressed analog signals (eg XHA1)?

What hard drive configuration you need?
(Take it with several 7200ern in composite Raid)

As for the camera, we are still s.schwanken. The target with the HDMI out is quite an interesting thing but the usability of her I would prefer the Canon. If the uncompressed with the tap is not a problem, I would order them.



Antwort von HeikoS:

Because "uncompressed" video in the world halt is 4:2:2.








Antwort von Valentino:

"flow motion" wrote:

I am with the Farbsampling not like this. Why do not you get because when the 4:4:4 uncompressed analog signals (eg XHA1)?

The response of HeikoS tried with a few words to explain it. In reality, this is somewhat complicated, it is in the range of HD cameras no cameras with the same tape drive 4:4:4 recording, simply because what is the amount of data it occur simply too big. For this reason there is always the camera head via Festplattenraid or HDCAM SR recorder records. Alone, this camera heads usually cost as much as a sports car.
Another Gurnd is synonymous to the analog / digital converter for a 10bit 4:4:4 signal is too expensive for a HDV camera.
Because that would make as much sense, if I live in a Ford Focus a Porsche engine construction would.
Also in the HDV cameras use 1 / 3 inch CCD imager bring this quality just does not work. I have many times the HD-SDI signal from a XL-H1 in Final Cut Pro and was recorded quite disappointed how much the noise CCDs. Prior to that the noise is my HDV material at the Camera has never fallen into the eye. This is the HDV material in comparison to uncompressed synonymous blurred a lot.

"flow motion" wrote:
What hard drive configuration you need?
(Take it with several 7200ern in composite Raid)

Here we are at the above-mentioned problem, a 10bit 4:4:4 is the memory requirement is much higher and the synonymous Raid accordingly synonymous faster. So if you have a Mac Pro should actually owns three 7.200er harddisks in Raid 0 to the record are sufficient, the cut but the system can be somewhat slow coming.
Precisely because of the synonymous data, it is but a clever external SCSI Raid growth, with the HDD in the five least RAID3 collaborative working.
We recommend systems of the Company Huge Systems or if the money is, of course, enough Apple Xserve is the best choice.
"flow motion" wrote:

As for the camera, we are still s.schwanken. The target with the HDMI out is quite an interesting thing but the usability of her I would prefer the Canon. If the uncompressed with the tap is not a problem, I would order them.

With the cameras, I would simply look at the HVR-V1 (a FX7 tuts synonymous) and the XL-H1 with the dealer prior to purchase and then try to borrow what material can be better keyen. The rental price of both cameras is usually the purchase of a camera into account.

Greeting

Valentino



Antwort von PowerMac:

That's not quite. The deliberate omission of (color) information for the purpose of data reduction, is synonymous with Compression. You take it so, that the omitted information is almost redundant, or that you can not see the difference. So 4:2:2 to 4:4:4 is actually a lossy compression, if it is always synonymous as "uncompressed video" is designated.



Antwort von akinnok:

"Valentino" wrote:

With a Sony (for example, FX7 or V1) would be a bit easier because you have the HDMI output with a Blackmagic card for around 300 euros can record the signal. This requires only Final Cut Pro or Adobe Premiere.
With Canon you can with the XH-A1 HD signal only via YUV and tap the card with YUV input with almost 1000 Euros a lot more expensive.
Synonymous Remember, the Picture for longer cable YUV worse when HDMI is then of p.10 to 15 meters to the problem, but a real Qualitätsverlusst I do not know.
For HD-SDI, even up to 50 meters possible and without losses.


The comparison of a black magic on the selected map
HDV signals with the m2t material times yes I would be very
interested.
is there something in the network?
if the HDMI signal band of the same quality as directly
from the HDV camera (eg v1/fx7) has one can of course synonymous the a1
plus one to restore hv20/hc7 via HDMI / buy black magic.
gruß cj



Antwort von Fridu:

444 of its 1080p HD F950 is based on a Xserve RAID possible, and that consists of normal SATA drives. I think the have had the even 2 F950s on the raid, but the wurd scarce.



Antwort von Fridu:

"Anonymous" wrote:
The comparison of a black magic on the selected map
HDV signals with the m2t material times yes I would be very
interested.
is there something in the network?
if the HDMI signal band of the same quality as directly
from the HDV camera (eg v1/fx7) has one can of course synonymous the a1
plus one to restore hv20/hc7 via HDMI / buy black magic.
gruß cj

This makes little sense. Why should the recorded material üebr HDMI look better than the direct import via firewire? The idea of HDMI recording is yes, the things recorded before the use of data reduction.



Antwort von Jan:

Hello,

Joachim Sauer (active video), in the current issue, the Black Magic card with HDMI intensively tested.

Very surprising for me is the material for the HDMI output is often a very Compression is done at no Firewire. HDMI output even losses compared to Firewire.

VG
Jan



Antwort von Fridu:

"Jan" wrote:
Very surprising for me is the material for the HDMI output is often a very Compression is done at no Firewire.

How do you go again? About Firewire, an MPEG2 transport stream and of course, is compressed. Uncompressed video over Firewire would be theoretically possible, but there is no standard and according to my knowledge no synonymous HDV camcorder via firewire to the uncompressed output.



Antwort von Jan:

No it was not meant, via HDMI, the material is partially encoded again and changed, in FW, it will be immediately issued.

SonyHVR times since V1 is an exception, there will be via HDMI uncompressed output before editing HDV in the Camera takes place, at least as the tester of the magazine.

VG
Jan



Antwort von Jan:

Get just the test, is quite revealing.

VG
Jan








Antwort von flowmotion:

What really speaks to the analog output to YUV?
For example, in the XHA1



Antwort von Valentino:

"flow motion" wrote:
What really speaks to the analog output to YUV?
For example, in the XHA1

Against YUV speaks nothing, only that the camera simply internal only 422 processed synonymous and only one 8-bit YUV 4:2:2 Siganl on output is present.
The Comparison of me, against HDV via 8Bit 4:2:2 HD-SDI, were, of course, "life" images and no material of the cassette, which I via firewire and then transferred via YUV did. It would be synonymous not make sense because the material is so compressed on tape already was.

Greeting

Tino




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