Loudness Analyse

Hi there,

Is it possible to analyze loudness in DaVinci Resolve? I want to know how I can determine whether the content complies with the parameters of ITU-R BS.1770-1 and ITU-R BS.1770-4.

An Audio Clip's contextual menu provides an Analyse Audio Levels command.

The Fairlight environment also provides a Loudness Meter in the Meters Panel and Loudness Track for the Main Bus.

Unfortunately, it's still not as simple or fast as it NEEDS to be.

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Right click on a timeline audio clip in the Fairlight page and select Analyze Audio and then click Analyze. In this example I have set it to analyze for YouTube levels.

That works at the clip level, Charles.

We don't have a way to do that for the entire timeline, though.

I think it works on what you select. One or more clips.

You can, but it doesn't give the correct result, which we can currently get only from a real time playback of the entire timeline.

The way I analyze an entire timeline without having to wait for realtime playback is by dropping the timeline itself, from the media pool, into a new timeline. Then the timeline is essentially one big nested clip on this new timeline and you can right click and analyze. For big projects, I usually have an empty timeline labeled "loudness check" into which I drag other timelines to quickly check them, then I'll delete it.

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I tried the nested timeline approach with a 32-track 5.1 timeline, but it just locked up my file so badly that I couldn't re-open it again and had to go back to a backup.

Right click on a timeline audio clip in the Fairlight page and select Analyze Audio and then click Analyze. In this example I have set it to analyze for YouTube levels.

Does this take into account effects like compression, NR, EQ, etc?


This is a big gap for me with the normalization tool, if you ask it to make your clip -14LUFS, it doesn't consider the timeline effects that could significantly change the loudness.