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Digitales Interface bei HDR-HC1?

Digital interface for HDR-HC1?



Frage von Martin:
November 2005

Hello,

'm still not sure whether the HDR-HC1 is the right camera for me. A question remains open:

Can the HDV signal directly to a HD television to play say: Is there a (digital) interface such as DVI or, better, HDMI? Ok, the fact that I can not find a corresponding interface in the technical data is indicative. Somehow I can not quite believe it, after all, virtually any camcorder offers the opportunity to spend the signal directly to the television. If I buy an HDV camcorder, I would expect that the film directly on an HD television (in HD, to prevent the corresponding cutting commentary) can be represented.

Greeting
Martin



Antwort von chrisgau:

No, the camera does not have HDMI - or DVI output. Simulscan via component output, which is usually very close s.der quality digital output. Well ... if next year, HD-DVD and / or Blu-ray players coming onto the market, this is probably the preferred medium for the HDTV output will be. And these players are digitally communicate in any event, with the image output devices.

Synonymous One must assume that the MPEG4 compression technology, the latest variant of MPEG2 in the first HDV cameras removed quickly. MPEG4 is simply more efficient ... due to higher claims s.The computing power at the moment, unfortunately, not yet feasible in HDV cameras. Can not last long. My expectations for the HDV camera in the future: MPEG4 Compression and recording on hard disks.

Regards,
chrisgau



Antwort von crumpet-co:

"chrisgau" wrote:
No, the camera does not have HDMI - or DVI output.
Simulscan via component output, which is usually very close s.der quality digital output. Well ... if next year, HD-DVD and / or Blu-ray players coming onto the market, this is probably the preferred medium for the HDTV output will be. And these players are digitally communicate in any event, with the image output devices.

Well, I actually thought I was the time in between (+ the initial period in which cost the player and burner exorbitant prices) by replaying the final movie to be able to solve Sonyand just watching on the HD television. The component input I do not trust it right - this is already pretty stupid to make in the digital world, everything digitally, only the link between camcorders and LCD Television is the same:-S

"chrisgau" wrote:
Synonymous One must assume that the MPEG4 compression technology, the latest variant of MPEG2 in the first HDV cameras removed quickly. MPEG4 is simply more efficient.

Efficient's may well be - but that is synonymous for the recording in real time? The highly compressed movies blur the frames of several seconds.

"chrisgau" wrote:
My expectations for the HDV camera in the future: MPEG4 Compression and recording on hard disks.

Hard disks, I do not think so dolle - for a long rotation is the thing at some point fully, and they make noise. I think that rather s.CF & Co. With MPEG4 you can grab one minutes in high quality HD movie to 100MB - two 4-GB CF's will come on 80 minutes.

Greeting
Martin








Antwort von wolfgang:

Is it not so far that the mpeg-4 compression will only be of high quality, if the encode in 2-pass procedure done? I ask myself before as a challenge for hardware encoders.

The reworking of the current HDV material is hard enough at it with mpeg4 could be an even higher degree of compression more difficult.

The quality produced, I would appreciate more the way in the opposite direction if the industry would go over to higher data rates ala DVCPRO, and 720 50p, as synonymous with the 1080 50p (although I quite sufficient for 720 50p) hold.

Whether the record is then done on a fast ongoing tape, or P2, or chips on the plate - well, that's still up to a certain extent a matter of taste, but a question of cost synonymous. tape is still practical to simply pick up the material to be able to generate noise and wear, however. Chips are still extremely expensive, and you only need a disk. Plate I myself find very well, stupid is when one is traveling a lot and cache must first - and then one at home need a server to aufzubewaren the O-material. But we'll see where to go here the developments.



Antwort von chrisgau:

"Anonymous" wrote:
Efficient's may well be - but that is synonymous for the recording in real time? The highly compressed movies blur the frames of several seconds.
[...]
Hard disks, I do not think so dolle - for a long rotation is the thing at some point fully, and they make noise. I think that rather s.CF & Co.


MPEG4 real time is already there, otherwise Pro7/Sat1 premiere and soon had a severe problem. After all, the so synonymous live broadcasts in HDTV want to transfer. In a HDV camera is, however, has not yet been implemented. I can not imagine that long. It's all a matter of computational speed and perhaps synonymous of a correspondingly large cache. The camera MUST yes but not real-time save record only real-time.

That with the Festplattenrattern I think is solvable. A sound mechanical damping and beautiful one hardly hears something else. But I'll give you right ... if the memory cards get bigger and cheaper, it could be a synonymous alternative. In any case, the tape will die ... I would not necessarily welcome that, but overall the industry is always trying - nachvollziehbarerweise - the number of moving parts to reduce (say what would be the memory).

Regards,
chrisgau



Antwort von Martin:

Huh, I've just written as Anonymous - sorry. Well, for this contribution is at least slightly off-topic ";-)

"chrisgau" wrote:
MPEG4 real time is already there, otherwise Pro7/Sat1 premiere and soon had a severe problem. After all, the so synonymous live broadcasts in HDTV want to transfer.


I would not now be seen in the subjunctive. It's already so that the digital programs with the MPEG2 live streaming video lag in the analogue model. Very clearly, even I have measured up to 5 seconds. In MPEG4, I would go out of at least 20 seconds. Particularly annoying is the Saturday afternoon, as if to Premiere Football and running parallel to the radio transmits the ARD meeting. We already know in advance whether the shot goes into the goal, because the radio colleagues have blabbed it all.

Implemented in the HDV camera, I would imagine this is so that it records in a "RAW" format and converts the background to MPEG4. Conversely, it will not work to remodel the camcorder via the DV port to an "HD-Cam."

Greeting
Martin



Antwort von Valentino:

Hi,
find the statements very lsutig as if Premiere and Co stand fast a little time because of Uncle Calculator Aldi, then the program in MPEG4 (H264 converts).
As simple as the matter is now synonymous not, so for MPEG2 one needs to have proper performance of MPEG4 and it takes exactly four times as much computing power.
So the server space of this task is done at Premiere equipped, so great to 20m ² and with the latest tech Nick. Yes clearly simultaneously for three Progarmme but nevertheless is already enormous, and then as soon sowas will be packed into a compact camcorder?
Except that all the major brands would be the HDV standard returned to the sea and this is unlikely.

I believe this will increase the data rate even more, because the storage medium more favorable. It is precisely due to the low data rate and GOP `s countries leads to deficiencies in HDV. Believe Panasonic is doing with the new HD Camera P2 and the first real step.
You have to watch the MPEG4 and MPEG2 synonymous for the end user has been developed to Ansschauen and not for post-production

Gruß Tino




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