Metadata audio for broadcast

[Seabornstudio]

Hi, anybody make an metadata audio for tv delivery?

I want to know how can we output this.

The specs sheet tell that if no metadata is available, a fix metadata will be use at the transmission.

Si whats thats??

Thank!

[audionuma]

Hi,
I think that they're speaking about Dolby Metadatas :
Dolby Metadata
If you deliver Dolby Encoded audio, metadatas must be embedded in the bitstream.
If you deliver PCM audio, you still can write down (on paper or a file) your desired metadatas settings.
You should investigate which are the fixed metadats settings they use to prevent any side effect on your delivered program.
Determining which metadata settings are correct for your mix requires some learning.

[Seabornstudio]

I deliver 5.1 multichanel mix
6 Wav 24bit 48K
On hdcamSR 1-6

With stereo mix
2 wav 24bit 48K 7-8

They said that they fix metadata according to the audio spec
-24lkfs lm100
Max peak -8
Ref -20

So i'm a little confuse with the metadata! Is it a loudness cue sheet from a 5.1mix???
What the purpose of the metadata?

Excuse my english!

[audionuma]

To make it quick :
you should verify that both your mixes (the 5.1 et the stereo) fit into the specs, especially you must check that their respective loudness level (I supose that it is bs.1770-1 ungated) is equal to -24 LKFS.

[Seabornstudio]

Ok, perfect
The same way i always do...
Thank!!

I was wondering what thats... I read the dolby metadata and thats ok
The broadcaster use the same metadata as i preview playback with surround manager plugin

Thank for precision