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#101: Mastering Audio Metrics: Decode True Peak & Short-Term LUFS Like a Pro!

#101: Mastering Audio Metrics: Decode True Peak & Short-Term LUFS Like a Pro!

Released Tuesday, 15th August 2023
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#101: Mastering Audio Metrics: Decode True Peak & Short-Term LUFS Like a Pro!

#101: Mastering Audio Metrics: Decode True Peak & Short-Term LUFS Like a Pro!

#101: Mastering Audio Metrics: Decode True Peak & Short-Term LUFS Like a Pro!

#101: Mastering Audio Metrics: Decode True Peak & Short-Term LUFS Like a Pro!

Tuesday, 15th August 2023
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Episode Transcript

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0:28

Hey , inside the Mix podcast fans , it's

0:30

Classic Mike from the Beat Bakery here . Follow

0:32

us on all the socials at Beat Bakery

0:34

UK . You are listening to Inside the Mix

0:36

podcast and here's your host , mark

0:38

Matthews . Hello and welcome to

0:41

the Inside the Mix podcast . I'm Mark

0:43

Matthews , your host , musician , producer

0:45

and mix and mastering engineer . You've

0:47

come to the right place if you want to know more about your

0:50

favourite synth music artists , music

0:52

engineering and production , songwriting and

0:54

the music industry . I've been writing

0:56

, producing , mixing and mastering music for over 15

0:58

years and I want to share what I've learnt with

1:01

you . Hello , folks , and welcome

1:03

back to the Inside the Mix podcast . If

1:05

you are a new listener , do hit that

1:07

subscribe button and if you're watching on

1:09

YouTube , make sure you hit that notification

1:11

bell so you get notified when there

1:13

are new episodes or when we go

1:16

live . If you are a returning

1:18

listener , a big welcome back . The

1:20

previous episode was episode 100

1:23

, the centenary . We celebrated

1:25

our centenary , folks here at the Inside

1:27

the Mix podcast Amazing stuff and this

1:29

is episode 101

1:32

. Interestingly , when I first created

1:34

an email address back when I was 10 , I

1:36

used 101 in it Tenuous

1:39

link , but I thought I'd throw it in there At

1:42

the time of this episode going live , I am

1:44

prepping for a short glamping

1:46

break in Glastonbury

1:48

of all places . Now , unfortunately it's

1:50

not the festival that has been in gone , but

1:52

it is just outside of Glastonbury

1:55

and I love Glastonbury . My girlfriend

1:57

and I regularly visit there . It's just

1:59

up the road for much probably about an hour , hour and a half

2:01

and it's fantastic . Absolutely

2:03

love it . If you haven't been there before

2:05

, do go visit . I absolutely love it around there . I'm

2:08

originally from that neck of the woods anyway , so

2:10

I am biased , but that's what

2:12

I'll be doing when this episode goes live

2:14

. This episode , episode 101

2:17

, is continuing with the mastering theme

2:19

, so we are setting up our mastering

2:21

session . In the previous episode , episode

2:24

100 , I demonstrated how

2:26

you can create a mastering template

2:28

. In episode 99 , we also

2:30

looked at Lough's Loudness

2:33

Unit Full Scale . So in

2:35

this episode what we're going to do is we're going

2:37

to look at how we can prep the session

2:39

further by identifying

2:42

the True Peak levels and the short

2:44

term Lough's levels as well

2:46

, and how we can then add markers

2:49

in Reaper or your DAW so you

2:51

know where they are . So when you're doing your

2:53

master you can refer straight

2:56

away to that point where you know there

2:58

is a True Peak or you know there is

3:00

the maximum short term Lough's

3:02

reading . But slow your roll

3:04

. Before we carry on any further , head over

3:07

to synthmusicmasteringcom and

3:09

download my guide to the

3:11

five essential free mastering

3:14

plugins . Let's dive into this episode

3:16

. So this is a relatively straightforward process

3:18

, folks . What I've done is I've opened Rx

3:21

Audio Editor . I've got just the standard

3:23

edition here and I've imported the mix

3:25

into Rx Audio Editor

3:27

. I've opened Waveforms stats

3:30

. So I've got the statistics for the waveforms

3:32

for this and I can see here . I've

3:34

got True Peak , sample Peak , total RMS

3:36

, I've got Max Momentary Short

3:38

Term and Integrated Loudness

3:41

and Loudness Range . I'm reading those off if you're

3:43

not watching this on YouTube . And

3:45

the great thing is what I can do with this is I can

3:47

click on this orange sort of icon

3:50

to the right of the reading and

3:52

it will tell me in the bottom left where that

3:55

True Peak level is . So I can see it's at 23

3:57

seconds or 23.926

3:59

seconds . So I'm going to make a note of that

4:01

. That's my True Peak , okay . So

4:04

I'm going to do the same for Max Short Term Loudness

4:06

. So in the Loudness , or rather in

4:08

the Waveform statistics , I've got

4:10

Max Short Term Loudness is minus 24.7

4:13

and that happens at 25.205

4:17

. So , just to go back , my True Peak happens

4:19

at 23.926

4:22

and it's minus 12.5 . I've

4:24

got those two readings . I'm now gonna jump over

4:27

to my DAW and I'm going

4:29

to create markers using those

4:31

two values . But before we do that , I

4:33

just wanna give a big shout out to Panorama

4:35

Mixing and Mastering and Nick Di Lorenzo , because I

4:38

actually got this particular part of my workflow

4:40

from Panorama Mixing and Mastering

4:42

and the amazing YouTube videos

4:44

, so please do go check that out . I wanted

4:46

to give a shout out to Nick

4:48

because it is a fantastic

4:51

technique for you to use in your mastering

4:53

and I use this all the time in every

4:55

mastering session , and I wanted to share this

4:57

with the Inside the Mix podcast audience . In

4:59

case you weren't aware of Panorama Mixing and Mastering

5:01

, please do go check them out . Also

5:03

, rx Audio Editor isn't free

5:06

, so what I wanna know from you guys is this is

5:08

there a free application

5:10

or plugin similar to Rx

5:12

Audio Editor ? Let me know in

5:14

the comments on YouTube or send me a message

5:16

on Instagram at Inside the Mix podcast

5:19

. I would love to know if there is a free

5:21

application or plugin similar to

5:23

Rx Audio Editor . So here I am

5:25

, back in Reaper , and Reaper is my DAW

5:27

of choice , as you would have found out in episode 100

5:30

, do go check that one out . And here

5:32

I've got my True Peak Reading

5:34

and my Max Short Term Luffs Reading

5:36

, represented by markers

5:39

. You can do this in any DAW , because any

5:41

DAW is gonna give you the ability to use

5:43

markers . So I've disabled Snap

5:45

to Grid in Reaper by pressing Option

5:48

S , because I don't want my markers to snap to

5:50

the grid when I am dragging them . Or

5:52

, alternatively , you can just click on the horseshoe

5:54

at the top left but Shortcuts People

5:56

, option S . So the first one

5:58

, true Peak . I'm looking at my list to

6:00

the right of me here and it's 23.926

6:03

. So let's drag that . I'm gonna get as close

6:05

as I can , 23.928

6:07

. That will do . Now I've got Short Term Luffs

6:10

and this is a little different . My reading is

6:12

25.205

6:14

seconds , so I'm gonna drag it and get as close

6:16

as I can . So I've got 25.20 . But

6:19

I'm actually now gonna drag it to 22.205

6:23

or as close as , because , remember , short

6:26

Term Luffs are three seconds . It's

6:28

a reading taken over three seconds . So let's

6:31

drag that back . So 23.205

6:34

. Let's get as close as I can and

6:37

23.206 . So I now

6:39

know if I set a three second

6:42

loop region . So I'll turn Snap back on

6:44

three second loop region or approximate

6:46

two . I'm gonna get my Max Short

6:48

Term Luffs value . So why is this important

6:51

? You might be thinking . Well , with True Peak

6:53

, what I can do is this I now know my

6:55

exact True Peak level . So when I

6:57

am auditioning my master and I'm checking

6:59

out that True Peak , when I'm limiting or

7:01

clipping , I know immediately where

7:03

my True Peak is in the track and it's gonna

7:05

eliminate any of that scrolling through

7:08

the track and arbitrarily

7:10

picking a point or trying to identify

7:13

where that True Peak is . I now

7:15

know exactly where it is . So with the Max

7:17

Short Term Luffs , what this enables me

7:19

to do is , quickly , I can go in and

7:21

see any changes that I've made

7:23

with regards to gain compensation or

7:25

maybe some saturation or anything along

7:28

those lines . I can quickly set that three

7:30

second loop region and I'll be

7:32

able to see exactly how my Max

7:34

Short Term Luffs have changed

7:37

with regards to the processing

7:39

that I have done , for the final marker

7:41

I have is this head marker and this is

7:43

0.3 seconds of

7:46

silence right at the beginning . The reason

7:48

I do this and there's a little fade there

7:50

as well . Actually you can't see it , but on YouTube , if

7:52

I were to zoom in , you'd be able to see this tiny little fade

7:54

and Reaper automatically adds it at the beginning . But

7:56

anyway , this marker , this head

7:58

marker , this three millisecond

8:01

silence is there so

8:03

that when this is uploaded to a

8:05

platform , a streaming platform , it

8:08

just negates any possibility that

8:10

there'll be a harsh clip or harsh intro

8:12

at the beginning , because I've got this tiny little

8:14

bit of silence and I've noticed this

8:16

on SoundCloud . There's a song I uploaded a

8:18

few years back and I didn't have this at

8:20

the beginning and the start there's almost like

8:22

this initial really harsh transient

8:24

hit , and I've put this in to try

8:27

and negate that . So there we

8:29

go , folks . More essential tips to

8:31

improve your mastering session preparation

8:34

. These tips are designed to

8:36

make it easier and quicker for

8:38

you in the mastering process so you can

8:40

spend more time actually being

8:42

creative rather than wondering

8:44

where these values are . By doing

8:47

this , immediately , you're gonna know where your true

8:49

peak is . You're also immediately gonna

8:51

know where your short term , your max short

8:53

term LUFs value is , and you've got that

8:55

point . Three second silence

8:57

at the beginning as well . So really

8:59

, really good stuff . As I mentioned right at the beginning

9:01

as well . If you know of a free

9:04

audio editor similar

9:06

to RX , please do let me know in the comments

9:08

on YouTube or send me a DM

9:10

on at inside the mix podcast

9:12

on Instagram . But just to summarize what

9:14

we've done today you've got your mix right

9:16

. You're gonna drag that into your audio

9:19

editor . I've used RX audio editor

9:21

. You're gonna use waveform statistics

9:23

to find out the true peak level and also

9:25

the max short term LUFs level . Okay

9:28

, you're gonna jump into your DAW

9:30

and you're gonna set markers for both those

9:32

values . The big difference is , with

9:35

the max short term LUFs value , you're

9:37

gonna have a three second lead in

9:39

time to it . So if your max short

9:41

term LUFs value is 25 seconds

9:43

, you're gonna set your marker at 22

9:46

seconds . So you've got that three second

9:48

lead in and you can create that cycle

9:50

region . And a final bit have that

9:52

initial start that head marker right

9:54

at the beginning , there , at point three seconds

9:57

. That way you can negate any harsh transients

9:59

that may appear on

10:02

streaming platforms . I'm not saying it will , but I just

10:04

put it in there as like a belt and braces

10:06

approach . You know what I mean , without saying

10:08

if you're from the UK , if you don't Google it , it

10:10

does make sense . So before you go , folks , make

10:13

sure you head over to synthmusikmasteringcom

10:15

and download my five essential free

10:17

mastering plugins . Alternatively

10:19

, you can click on the link in the episode

10:22

description .

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Inside The Mix | Music Production and Mixing Tips for Music Producers and Artists

If you're searching for answers on topics such as: what is mixing in music, how I can learn to mix music, how to start music production, how can I get better at music production, what is music production, or maybe how to get into the music industry or even just how to release music.  Either way, you’re my kind of person and there's something in this podcast for you! I'm Marc Matthews and I host the Inside The Mix Podcast. It's the ultimate serial podcast for music production and mixing enthusiasts. Say goodbye to generic interviews and tutorials, because I'm taking things to the next level. Join me as I feature listeners in round table music critiques and offer exclusive one-to-one coaching sessions to kickstart your music production and mixing journey. Get ready for cutting-edge music production tutorials and insightful interviews with Grammy Award-winning audio professionals like Dom Morley (Adele) and Mike Exeter (Black Sabbath). If you're passionate about music production and mixing like me, the Inside The Mix is the podcast you can't afford to miss!Start with this audience-favourite episode: #75: How to Mix Bass Frequencies (PRODUCER KICKSTART: VYLT)► ► ►  WAYS TO CONNECT  ► ► ► Grab your FREE Production Potential Discovery Call!✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸Are you READY to take their music to the next level?Book your FREE Production Potential Discovery Call: https://www.synthmusicmastering.com/contactBuy me a COFFEE✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸✸If you like what I do, buy me a coffee so I can create more amazing content for you: https://www.buymeacoffee.com/marcjmatthewsSend a DM through IG @insidethemicpodcastEmail me at [email protected] for listening & happy producing!

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