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Does anyone know if there are clear technical specs a digital file can be assessed against to confirm a valid 'broadcast quality' file?

EG: Video = certain bitrate Audio = certain bitrate.

Obviously 'non-broadcast quality' files can be faked by resaving to meet such specs, but as a starting point are there guidelines?

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    Regarding HD video, it used to be either MPEG HD422 (MPEG-2 Interframe @ 50 Mbit/s, 4:2:2) or DVCPRO HD (40-100 Mbit/s, 4:2:2). Then a whole bunch of new formats came along based on AVC/H.264 and lately H.265. I think the consistent requirement over the years has been 4:2:2 color subsampling. When HD was THE thing 10-15 years ago and TV bitrates were healthy 15+ Mbit/s, this all made sense. Nowadays my local TV station broadcasts "HD" at 5 Mbit/s, so the quality is worse than a cheap smartphone. "Broadcast quality" means nothing to me anymore. If anything, YouTube videos can look better.
    – Rusty Core
    Commented Jul 5, 2019 at 21:43
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    Despite what Rusty Core says, TV stations will have specifications about what they regard as "broadcast quality" and will reject material that does not meet their QC checks. Best bet is to ask whatever station you are submitting it to.
    – stib
    Commented Jul 7, 2019 at 11:39

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This depends entirely on who you are delivering to. Different broadcasters have different requirements. Most have a delivery spec sheet that you can request, or that they publish online. e.g. here's the BBC one.

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  • BBC link was quite handy, thanks
    – alexh
    Commented Jul 5, 2019 at 0:44
  • And here are the Netflix and PBS specs.
    – Michael Liebman
    Commented Jul 5, 2019 at 22:12
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you need to understand the meaning of each & effect of different Bit-rates on your video.

DEPENDING ON PAL & NTSC FRAME SIZE, FRAME RATE & FIELD PROGRESSION CHANGES FOR THAT TOPIC

CLICK ON THIS TEXT OTHERWISE READ THE FOLLOWINGS:

SD 4 MB/s = TARGERT BITRATE & 5 MB/s AS MAX BITRARTE

& there won't be much difference. but for

HD 8 MB/s = TARGERT BITRATE & 12 MB/s AS MAX BITRARTE

AS FOR

AUDIO FREQ. 48k

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