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True Peak and Integrated Loudness

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True Peak and Integrated Loudness

Postby AMusicPlayerPlus » Fri Jul 10, 2020 8:49 pm

Dear Friends,

Need advice.

Let's say I have a track
with integrated loudness - 13.2 LUFS
and True Peak - 1.1db

I want to make it - 15 LUFS and TP - 1db.

What would be the right approach to do it?

Let's say I have a limiter as a last plugin on mix bus (post) .

Should I set - 1db as target on limiter and change gain of limiter?

The problem is when I decrease gain of the limiter it reduces true peak, so I never get to my target...

Please advise...

Thank you!
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What should be peak max for tracks?

Postby AMusicPlayerPlus » Fri Jul 10, 2020 9:03 pm

True peak shouldn't exceed - 1db.
But what should be peak max for a track?
For example, I have a track with TP = - 1db, and peak max =-2.3db. If it's ok for music / sound track? Or peak max should be 0 db?

Please advise.
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Re: True Peak and Integrated Loudness

Postby RichardT » Fri Jul 10, 2020 9:17 pm

Hi A,

I would normally decrease the gain on the limiter by about 2dB and see what the LUFS are.

What peak value do you get when you do that?
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Re: What should be peak max for tracks?

Postby CS70 » Fri Jul 10, 2020 9:19 pm

There's no real "should", it really depends on the material.

In general, CDs will be limited (with a limiter that understands intersample peaks, often an hardware one) and hotter, with sample peaks at 0dBFS. Releases which are likely to be transformed in MP3s will be a little less hot to avoid problems in the result of the encoding, and loudness- based release will generally have much lower sample peaks.

As individual tracks, stick to the -18dBFS average / -12 peak and you'll be fine.
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Re: True Peak and Integrated Loudness

Postby AMusicPlayerPlus » Fri Jul 10, 2020 9:38 pm

RichardT wrote:Hi A,

I would normally decrease the gain on the limiter by about 2dB and see what the LUFS are.

What peak value do you get when you do that?
ok.
so I decrease the gain on limiter to have - 15LUFs,
but true peak will be decreased too.
Let's say it will be - 1.6db.
How I get the true peak to - 1db?
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Re: What should be peak max for tracks?

Postby Hugh Robjohns » Fri Jul 10, 2020 9:41 pm

AMusicPlayerPlus wrote:True peak shouldn't exceed - 1db.
But what should be peak max for a track?

'peak max' is the amplitude of the highest sample peak (dBFS). It will always be the same or lower than the True Peak (dBTP) -- usually between -0.5 and -4dB lower

I have a track with TP = - 1db, and peak max =-2.3db. If it's ok for music / sound track? Or peak max should be 0 db?

It's perfectly fine and normal.
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Re: True Peak and Integrated Loudness

Postby Hugh Robjohns » Fri Jul 10, 2020 9:45 pm

AMusicPlayerPlus wrote:so I decrease the gain on limiter to have - 15LUFs,
but true peak will be decreased too.
Let's say it will be - 1.6db.
How I get the true peak to - 1db?

You don't.

The -1dBTP True Peak value is a maximum limit, not a target.

What matters is that your integrated loudness (LUFS) meets the required target, and the music dynamics sounds the way you want. The true peak level can be anything you like, as long as it doesn't exceed -1dBTP.
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Re: True Peak and Integrated Loudness

Postby RichardT » Fri Jul 10, 2020 10:24 pm

AMusicPlayerPlus wrote:
RichardT wrote:Hi A,

I would normally decrease the gain on the limiter by about 2dB and see what the LUFS are.

What peak value do you get when you do that?
ok.
so I decrease the gain on limiter to have - 15LUFs,
but true peak will be decreased too.
Let's say it will be - 1.6db.
How I get the true peak to - 1db?

True peak will not necessarily be reduced atall, if actual limiting was taking place at -13dB. When you say ‘let’s say it will be -1.6’ it sounds as if you’re imagining the result. What happens when you actually do it?

As Hugh says, you don’t have to reach a particular peak value. Anything below -1dB pretty much is OK as long as you have the right dynamics and loudness.
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