Infoseite // Best codec for broadcast material



Frage von Visions:


Hello,

I've already read a lot, but no definitive conclusion on this topic ...

My question is what is the best codec, if the material broadcast on TV will be?

I have now a Premiere Project consisting of a TGA sequence and a soundtrack and it wants to export as 4:3, which is the television standards and Sound and Picture quality is as high as possible.

It seems to be MPEG2 and DV video codecs used much ...

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Antwort von Dill:

The medium duty (and thus synonymous ggf.der codec) provides your customer.

There are channels that accept contributions from outside via tape contrary, there is what, as data, you can "submit" (mE per data line). This results in the type of codec.

If your material is available as a DV, you should in any case the project as a DV-cross (intersect) and then the finished product (an exported DV AVI File) - if desired - in MPEG umcodieren. So long as you stay in the best possible Quallitätsstufe.

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Antwort von thos-berlin:

<Crap again not logged ...

So: Since your material as TGA exists, you can basically do both. For 720x576 PAL TV is one way or the necessary resolution. However, with the DV codec compresses each Picture, MPEG is a compressed picture and more pictures from the only difference to the previous picture is generated. Thus, in my opinion: the further cut with DV always to be preferred.

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Antwort von visions:

Thanks for your answers, which gave me schonmal helpful.

The finished product will be delivered in digital form. The aspect ratio is 4:3, which would then 768x576.

First Support some DV codecs only 720x576 ... but there are some among synonymous to any Quicktime format, as DV encoding.

Until now I still have not achieved good results so that it emerged artifacts and vertical lines.

My standard for high quality codec Indeo video 5 is used for TV but probably not ... am a little confused ...

The point is that the Komprimiereung no preference, it's about the quality DV codecs have until now only scrap produced, and MPEG-2 compression is quite ...

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Antwort von Dill:

why not in uncompressed and
720x576 with a corresponding APR.
gruß cj

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Antwort von thos-berlin:

Quote: The aspect ratio is 4:3, which would then 768x576.


The DV codec with 720 x 576 (as synonymous other 720 x 576) corresponds to analog 768 x 576 pixels.

What the client says? If he wants to have it elktronisch, he must determine the codec synonymous, because yes, finally, he must be synonymous to the material in his system to use.

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Antwort von Wotan:

Why is your MPEG 2 so bad you can not adjust when encoding ... Bitrate ~ 10,000, motion detection, or almost normal, Scene detection and Closed GOP would ever a good start ..
incidentally, would be an alternative to MPEG2 a H.264 (MPEG 4) synonymous not so bad (just do not take XVID or DIVX) and Quicktime (perhaps synonymous an MPEG4 Quicktime? ... or DV?) should be synonymous to the transmitter can easily import.

Indeo is my opinion, one of the worst you can ever take. If yes originally synonymous as far as I know synonymous designed systems to weak a video play it (Pentium 2 and under) ... since it is only limited processor load at En-and decoding needs. Quality and usability, and further cut capacity, there is another topic ;-) Have no idea but if that were the focus of the new Indeos was.

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Antwort von Dill:

@ Guest:
It just completely uncompressed to export would be a way synonymous, but first I will try it with DV or MPEG get added ...

@ Thos-berlin:
Quote: The DV codec with 720 x 576 (as synonymous other 720 x 576) corresponds to analog 768 x 576 pixels.

It is so that the 720 to 768 lines are scaled, and then the 4:3 ratio ... but if a 4:3 format on a digital medium is required, I think the 768 x 576 is concerned, I know but not as synonymous with digital media is usual ... and only if the material is converted or directly used in this form.

@ Wotan:
I will look at the whole MPEGs and synonymous search on multiple settings ... when there is the choice, will any of the desired quality.

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Antwort von Dill:

Online - making opportunities are there now, and until now I have in all tax policies only a "codec" seen.

MPEG2 50mbit/sec i-frame only

So, the basic parameters of IMX. Other online - making opportunities I have (at least for the "normal" channels), never seen.

Here all the directives of P7S1.

http://www.prosiebensat1produktion.de/incl/files/050729Technische_Richtl_D.pdf

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Antwort von robbie:

Oops .. I was ...

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Antwort von thos-berlin:

Quote: but if a 4:3 format on a digital medium is required, I think the 768 x 576 is meant .... Not really. The professional DVDAM is synonymous 720 x 576

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Antwort von PowerMac:

Digital PAL is 720x576. And that corresponds to 4:3. The reason why the mathematics is not 4:3, is because the pixels are slightly rectangular. This is a anamorphic distortion. I cut only in SD ProRes 422 ext. and convert to MPEG-2 with 50 Mbit / s.

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Antwort von Visions:

Thanks again for your replies and especially for the link, the document actually contains everything you need to know.

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