LKFS real time vs. audiosuite measurement not the same ??

[Benny Mouthon]

I have to do tweaks to the loudness in a mix, but when I measure a small chunk (say a minute) of the stereo FULL MIX with Waves' WLM or Izotope's Insight 2
in realtime I don't get the same outcome as when I measure the same with Audiosuite rendering, although I'm pretty sure that was the case in the past.

Point is I need to be able to measure a whole 1hr show much faster than realtime but the Audiosuite results aren't correct (they're lower),
I know this because the QC report reads about the same as my realtime measurement.

Is this a setting that has changed somewhere ?? I checked with some colleagues (all running on Mac OS 13.4 and PT 2023.6) and we get the same results..

Not that it should matter but I need to pass ATSC A/85 2013.

[its2loud]

I just did a test here with WLM real time and audiosuite and both results came out the same. How are you measuring the level in realtime? What signal path are you using?

[Benny Mouthon]

Originally Posted by its2loud

I just did a test here with WLM real time and audiosuite and both results came out the same. How are you measuring the level in realtime? What signal path are you using?

I put a WLM as the first plugin on the FULL MIX record track and measured that in real time playback, then highlighted the first minute and did the same in Audiosuite (=rendered from the AS WLM plugin)

[JoeTools1963]

In my estimation, it should be the last plug-in on the master fader. Otherwise, anything on the fader after it will change the loudness. Compression-Limiting etc.


Sent from my iPhone using Tapatalk

[its2loud]

Originally Posted by Benny Mouthon

I put a WLM as the first plugin on the FULL MIX record track and measured that in real time playback, then highlighted the first minute and did the same in Audiosuite (=rendered from the AS WLM plugin)

Personally, I would never put the plugin on the record track. I always make an Aux Track that has the same input bus as my record track. Then I meter on this aux track, which also happens to be my Monitor path.

If you have other plugins as well on the record track, this will affect the file being recorded.

[JoeTools1963]

Originally Posted by its2loud

Personally, I would never put the plugin on the record track. I always make an Aux Track that has the same input bus as my record track. Then I meter on this aux track, which also happens to be my Monitor path.

If you have other plugins as well on the record track, this will affect the file being recorded.

Or this. Six of one half a dozen of another. Savvy?


Sent from my iPhone using Tapatalk

[JoeTools1963]

Are you measuring an entire mix or just a track?


Sent from my iPhone using Tapatalk

[Benny Mouthon]

Originally Posted by JoeTools1963

Are you measuring an entire mix or just a track?

I'm measuring a stereo WAV of an entire mix. I have a plugin on that record track because I need to measure the result of this track, but I get the same result if I put a send there and have a WLM on an AUX somewhere else.

However, my question is still open: somehow I'm getting different readings using this (or whatever) real time method vs. Audiosuite.

[originalscottyg]

Could be mono mode vs multi-input mode in the AudioSuite plugin. Make sure the AudioSuite plugin is set to multi-input mode and check again?

[Benny Mouthon]

Originally Posted by originalscottyg

Could be mono mode vs multi-input mode in the AudioSuite plugin. Make sure the AudioSuite plugin is set to multi-input mode and check again?

#$%**@# Scott, thanks mate, looks like that's it !!!