Forum Post

bolisound (bolisound) asked a question.

January 2, 2024 at 7:01 AM
Loudness Meter in Pro Tools
Hi guys, I have a question regarding my new setup, I am using DAR software (not DAPS or DAMS), using 2 computers, 1 for DAW, and 1 for DAR. I am using Dante.

I set up my session according to the Dolby Atmos tutorial (text version), however, I might have missed something, I was wondering, how I get the Pro Tools meter to work, like setting a Pro Tools 7.1.4 Output and do the bus work, but isn't this will take 12 channels from the 128, this method would work for Pro Tools Output meters.

But is there a smarter way of projecting the DAR loudness meter in the Pro Tools software, so I don't need to check 2 windows, i know the Loudness report has awesome features, however, I am just curious is there a better way of doing this?
  • 20 answers

  • AdamP (Dolby Labs)

    Hi,

    Probably easier to zip up the image files.

    If you are using a MTRX Studio which only has 64 channels of Dante I/O you will need to set the Re-Renders to use channels below 64.

    If your speaker layout is 7.1.4 you can start the live re-renders at output 13. (see image in the attached zip file)
    You then need to route 13-18 back the MTRX in the Dante Controller application.
    Make a 5.1 input in Pro Tools I/O setup input section.
    Use that 5.1 input on an Aux Track with Insight inserted.
    Also in the Renderer you want to use "loudness" (not 5.1) the re-render output. Loudness is 5.1 but with the same limiter used as the Renderer for accurate measurements. (see image in the attached zip file)


    Hope that helps.

    Best,
    Adam
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  • AdamP (Dolby Labs)

    Hi,

    Loudness measurement on Atmos content is based on a loudness specific 5.1 re-render.

    To measure loudness in realtime in Pro Tools you should set up a Live 5.1 Loudness re-render in DAR and route that into an 5.1 aux track (or regular track in Pro Tools). This track should be bussed to a dummy output that doesn't feed anything. Then you can insert a loudness plug-in on that track to get the same loudness measurement as you would see in the Renderer (which uses the same 5.1 Loudness re-render for measurement).

    You would need a loudness plug-in from Nugen or others to make this work in Pro Tools.

    Best,
    Adam
    Expand Post

  • bolisound (bolisound)

    Hi Adam,


    Thank you for answering my questions, I have tried to reproduce the steps. However, I am not able to follow up tightly, could you please check out the images I have uploaded and let me know if I have missed anything?

    1, Pic1: the DAR
    I have left 65 - 70 for re-render
    Am I understand it correctly? Should I not use the 65-70 (or any channels that I use later for sign-to inputs) for the object?

    2, Pic2 and pic3: the DAR re-render and preference
    I have created a live rerender using 65-70, and in preference I am activated live re-render option

    3, Pic4 my input for pro tools is from 65-70, pic5 output set to a 5.1 which send to nothing, pic6 the bus window

    4, In pro tools, i created an Aux track for saving voice count, but nothing is coming in. i am using the isotope insight for monitoring 5.1

    QUESTION 1:
    Can I set it as a 7.1.4 in DAR rerender, and pro tools output, bus, and everything else, isn't it better to see everything all channels instead of only 5.1 (6 channels)

    QUESTION 2:
    Could you please guide me, and let me know where I lost in the routing?

    QUESTIONS 3:
    Does somehow one day Pro Tools or Dolby plan to get this easier (some sort of remote window)? I know doing this is kinda foolish, since the meter in dolby is pretty awesome, but if my clients or students ask me, I would like to answer them.
    Expand Post
    • pic7

  • bolisound (bolisound)

    oh, it is interesting I thought I have uploaded 7 pictures, then I will upload it one by one then... here is pic 6
    • pic6

  • bolisound (bolisound)

    I have tried some way to upload multiple picture together, however, I would suggest to allow user upload multiple pictures, because the setting is complicated, and the form can really help some users like me.

    pic1
    • pic1

  • AdamP (Dolby Labs)

    Hi,

    Probably easier to zip up the image files.

    If you are using a MTRX Studio which only has 64 channels of Dante I/O you will need to set the Re-Renders to use channels below 64.

    If your speaker layout is 7.1.4 you can start the live re-renders at output 13. (see image in the attached zip file)
    You then need to route 13-18 back the MTRX in the Dante Controller application.
    Make a 5.1 input in Pro Tools I/O setup input section.
    Use that 5.1 input on an Aux Track with Insight inserted.
    Also in the Renderer you want to use "loudness" (not 5.1) the re-render output. Loudness is 5.1 but with the same limiter used as the Renderer for accurate measurements. (see image in the attached zip file)


    Hope that helps.

    Best,
    Adam
    Expand Post
    Selected as Best

  • AdamP (Dolby Labs)

    Also...

    In the Pro Tools I/O input section make sure the 5.1 input using inputs 13-18 is set up in SMPTE channel order: L, R, C, LFE, Ls, Rs.
    • Screenshot 2024-01-02 at 5.06.16 PM
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