Vit Reiter wrote:Your view of working with audio in video focuses only on the phase of production of audio-visual content, but you need to measure audio, especially the finished material. E.g. when preparing content for television broadcasts to different parts of the world, where standards for sound are different, for cinemas, VoD platforms, etc.
I don't understand your point above. You say I focus on audio-visual content, then say "but" and that I need to measure audio when prepping for content for television. Content for television is audio-visual, so why are you saying "but"?
Yes, standards are different, but my point is that when you're doing your work in a calibrated room (one way or another) with a meter available - as you go along editing, premixing and mixing you will see where your level is and typically hit your target within the acceptable range.
And if you're talking about global deliverables for TV for example then you can pick the tighter European spec of -23LKFS +/-1LU which fits "inside" the US spec for example. Obviously if there's a desire to adjust True Peak differently for different networks that's an issue, but none of this changes anything.
Look at it this way: If you're mixing the same content for cinema as you are for TV then it doesn't change the fact that you either just brute-force limit and boost/cut the loudness of a cinema mix
or re-mix it for that other medium. And once you're done with your cinema mix you have your measurement and don't need to run it faster-than-realtime again really. Mixing for cinema is such a big endeavor relatively speaking that of course you're going to have a play-through beginning to end at the end of it which is when you get your measurement. And then you either use the brute-force method based on those numbers, or you re-mix in which case we're back to what I was saying earlier.
Vit Reiter wrote:Meter capabilities such as Waves WLM Plus Loudness Meter or iZotope Insight are used for this purpose and integrated into DaVinci / Fairlight would be very beneficial.
Yeah, I know those are used for those purposes because I use them. But Insight doesn't allow for an offline measurement of the mixer's output, and neither does WLM if I remember correctly. They can analyze files (clips) offline, but that's a different thing.
I already agreed that it would be "nice" or "convenient" to allow for faster-than-realtime. All I'm saying is that it isn't really "desperately needed" if your workflow is decent.
PS: Depending on the content and the complexity of the mix we might save slightly less time than we think... also depending on the computer of course. But as a somewhat realworld-esque hypothetical example: If you have a 40min TV show that's a decent size mix, let's say
not a fully-filled M&E and not fiction but more of a TV doc or something reasonable, that may on an octo core CPU desktop take about 10min to render. This means that the offline measurement takes 10min to get. Like I said, some people have complained about that. Of course a "worse" CPU takes longer. And if your workflow is such that every time you make a change you need to remeasure then that's 10 minutes every single time. And that's outside of actually rendering the content.