[MLA] AES71 comments

[Bob Katz]

I'm in favor of any solution that lowers the recommended target! But 
it's always interim.


-18 LUFS is 5 dB away from -23. It ought to be safe for the majority of 
program with an emergency protection limiter, at least for portable 
devices. But I would NOT recommend -18 LUFS target for set top devices 
playing wide range program material on loudspeakers. There's the rub and 
the need for metadata.


Bob



On 6/5/18 8:49 PM, Ian Shepherd wrote:
>
>
>> Maybe the solution for fallback in the absence of metadata on 
>> portable devices we recommend a gain boost of 7 dB with a protection 
>> limiter. Since it's music it's likely to have a PLR of less than 16 
>> dB so if it was normalized to -23 it would hardly trigger the 
>> limiter. But without metadata how do you know it's music? And if they 
>> normalize regular program to -23 it will be too low for many portable 
>> devices, also.
>>
>> Shit (excuse my French)
>>
> We’ve settled on around -18 LUFS for my podcast, which is plenty loud 
> on my (European) iPod with stock earbuds. Anecdotally the BBC seems to 
> be similar, and also works works fine, for the most part.
>
> We should look back through our notes for the meeting where the 
> podcast providers joined in, Bob - from memory most of them had also 
> settled on -16 or -18, I think.
>
> I assume your concern is that raising normal program to -16 would 
> trigger excessive limiting, Bob. Perhaps suggesting -18 (which is the 
> median of the AES recommended range) for everything would be a 
> workable compromise, when there’s no meta-data ?
>
> Ian
>
>

-- 

If you want good sound on your album, come to Bob Katz 407-831-0233 
DIGITAL DOMAIN MASTERING STUDIO Author: *Mastering Audio *Digital Domain 
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