@KeithJA&H, and @SteffenR –
Thanks. I found another thread right after I posted that explained the -18db difference… should’ve done more research 🙂
But, good. Thank you. I suppose Metering is something I know a lot less about than I realize.
So I understand – Once A to D has occurred and the “bits are there”, headroom is not about getting good signal to noise ratio (like at the pre-amp stage), but space before digital distortion (0dBFS)? So, getting a signal at the preamp that is 0dBU RMS, then pushing the direct out +10 like you suggested doesn’t make the now -8 signal in Logic cleaner?
Here is a metering question in general then – you are saying that the reference point of the console is +4dBu. Can you explain that more, and what you mean by +22? How I understand it –
-0.3dBFS = +17.7dBu. But because the reference point of the SQ is +4, its actually +21.7dBu, which is why I am finding that setting my output to about -5dbFS is a sweet spot? Or is that wrong?
Additionally, after the Main LR of the board. We go into a splitter, which goes into the facility and other location. And one of those locations is a blackmagic SDI injector which embeds the audio into the video from the switcher. One of the SDI outs goes to an SDI to Thunderbolt converter, into the streaming computer. Do you see a better or cleaner way to get the audio to the streaming computer, or from the Broadcast SQ to our SDI injector?
