Loudness correction to EBU r128

[abul]

File Information
File Size: 5927004263 bytes
Audio Duration: 900.8 seconds
Sample Rate: 48000 Hz
Num Channels: 2
Bits Per Sample: 24
Analysis Time: 81.3 seconds
Analysis Speed: 11 x
Correction Time: 26.1 seconds
Correction Speed: 35 x
Channel Group Information
Number of Groups: 2
Channel Group Layout: Mono_Mono
Channel Group Name: MonoOne
Loudness Specification: EBU R128
Loudness Units: LUFS
Program Loudness Target: -23.0 LUFS
Program Loudness: -23.0 LUFS
Loudness Range: 8
PPM Scale: BBC
PPM Threshold: 8.00
Max PPM: 8.26
True Peak Threshold: -3.00 dBTP
Maximum True Peak: -0.83 dBTP
Attenuation required for file to meet target: 0.0
Channel Group Name: MonoTwo
Loudness Specification: EBU R128
Loudness Units: LUFS
Program Loudness Target: -23.0 LUFS
Program Loudness: -23.1 LUFS
Loudness Range: 8
PPM Scale: BBC
PPM Threshold: 8.00
Max PPM: 8.26
True Peak Threshold: -3.00 dBTP
Maximum True Peak: -0.83 dBTP
Attenuation required for file to meet target: 0.1
1


This is when i do none, transwrap

it fails,

is it because of the way its doing the loudness


the 2nd workflow you have given throws error = lvel = ""

[Ghtais]

Hi

can you share some information about EFF ? is it a QC software like baton or vidchecker ?
Thank you

[abul]

Hi Ghtais,

eFF is a loudness correction QC tool. It will analyse the video, almost in real-time according to the parameters Such as choosing the EBU standard USA or UK. as I am in the UK its set to the UK standard.

It is similar to baton, but the output only tells you the issue with the audio loudness. Once it analyses a video file, it outputs the content in a PDF with some graphs as well as showing the audio graph.

Unlike baton where it checks the configuration of the video file and checks for freeze frames and other sorts, this just checks the loudness of the audio file.

[Ghtais]

Hi abul

thank you for sharing. Do you have a link to the editor website ?

[admin]

Ok, so abul, when you transwrap, the loudness function does not work, is that correct? Is so, can you again export and post the workflow?

-steinar

[abul]

Hi Steinar,

I have uploaded the updated workflow. Sometimes when I pass an MP4 file through, it works, other time like when passing an MXF through, it does not work.

- Abul

[emcodem]

Hi,
just did a quick test and using "Transwrap if possible" Setting in XDCAMHD node works for me along with audio normalisation...

[abul]

Can you upload your workflow please

[emcodem]

@Ghtais look up eff loudness in the net, it is a commercial product for smart audio handling.

@abul
viewtopic.php?f=5&t=849#p4486

[abul]

Hi emcodem,

I used the workflows you have given. The problem i have seen currently.

when the end text file is generated, it says that the pair of audio is -23, however, when checking on eFF, it says its -26??

could this be a bug??

Abul