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  #1  
Old 02-24-2016, 11:24 PM
SyneWave SyneWave is offline
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Default Metering via Plugin for Delivery Spec - Please Clarify !

Hi guys,

beginner here, please excuse the noobish questions.

I am looking into metering plugins for Pro Tools as well as the process of using the plugs to deliver content to spec.

Currently looking at WLM Plus, Nugen VisLM and Izotope Insight.

My questions:

(1) any recommendation or notes regarding these or other meter plugins ? are there metering plugs that can write/report to csv file with timecode ?

(2) in general (independent of delivery spec), do I measure the program material from first frame to last frame without the tones & beeps and then simply evaluate the final numbers ?

(3) to define the dialnorm metadata value for AC3-encoded content, would I analyze my isolated DX stem using Leq(A) weighting via one of those plugins above and then declare that value in the metadata ? I've seen "LKFS Dialog" weighting in some plugs and I'm confused what that is for...

(4) the Nugen VisLM plug seems to have options for various gates in the weighting algorithm... what are the different gate types used for ?

Thank you !
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  #2  
Old 02-25-2016, 12:50 AM
ex-user ex-user is offline
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Default Re: Metering via Plugin for Delivery Spec - Please Clarify !

May I first direct you to https://tech.ebu.ch/docs/tech/tech3343.pdf

Although the document is for the EBU R128 recommendation, it discusses the principles of loudness measurement. It will answer at least one of your questions and probably many more that you didn't know you had...yet in a readable and informative manner.
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  #3  
Old 02-25-2016, 01:21 AM
laki laki is offline
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Default Re: Metering via Plugin for Delivery Spec - Please Clarify !

Vsonics Vmeters works great and is inexpensive. Pretty sure that it will create a log, not in front of it at the moment. Dolby Media Meter definitely does logging.
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Old 02-25-2016, 08:26 AM
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TVPostSound TVPostSound is offline
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Default Re: Metering via Plugin for Delivery Spec - Please Clarify !

If you want to be safe, then use the Dolby Media Meter.

Thats what NOCs use.
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  #5  
Old 02-25-2016, 10:35 AM
tom_lowe tom_lowe is offline
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Default Re: Metering via Plugin for Delivery Spec - Please Clarify !

I personally love Nugen VisLM. Love the options added in V2 (can update integrated loudness after you've changed a section without having to play back the whole programme) and find it the easiest to read and no significant hit on CPU.
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  #6  
Old 02-25-2016, 02:33 PM
SyneWave SyneWave is offline
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Default Re: Metering via Plugin for Delivery Spec - Please Clarify !

Quote:
Originally Posted by tom_lowe View Post
I personally love Nugen VisLM. Love the options added in V2 (can update integrated loudness after you've changed a section without having to play back the whole programme) and find it the easiest to read and no significant hit on CPU.
thanks Tom - good to know that Nugen stores the data in RAM, so it can be re-used for other calculations without replaying the content.

Can you elaborate on the different gating algorithms and their intended usage ?
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Old 02-26-2016, 09:33 AM
tom_lowe tom_lowe is offline
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Default Re: Metering via Plugin for Delivery Spec - Please Clarify !

Quote:
Originally Posted by SyneWave View Post
thanks Tom - good to know that Nugen stores the data in RAM, so it can be re-used for other calculations without replaying the content.

Can you elaborate on the different gating algorithms and their intended usage ?
The gate was introduced with EBU R.128 and then ITU update the BS-1770 spec to include it in rev 3 (I think).

VisLM has tons of presets, don't worry about the gating, just use the spec required by your broadcaster.

Dialogue Intelligence isn't a feature of any variant of BS-1770, but was added as some people and broadcasters liked the features from the old Dolby LM100 hardware.
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  #8  
Old 02-27-2016, 04:09 PM
SyneWave SyneWave is offline
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Default Re: Metering via Plugin for Delivery Spec - Please Clarify !

are there any metering plugs that can log with timecode ?
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  #9  
Old 03-01-2016, 01:22 PM
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TVPostSound TVPostSound is offline
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Default Re: Metering via Plugin for Delivery Spec - Please Clarify !

Quote:
Originally Posted by SyneWave View Post
are there any metering plugs that can log with timecode ?
See post #4
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  #10  
Old 03-11-2016, 12:43 AM
kwa kwa is offline
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Default Re: Metering via Plugin for Delivery Spec - Please Clarify !

I have the izotope package and its great. Nugen is great too from what I have seen. They are both way more versatile and robust than WLM. I barely use that anymore.
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