Hit Record Meter
TL;DW: Meter measures things about audio you’ve never seen before.
github.com/airwindows/Meter/releases
This is a bit new: heavily GUI Airwindows, outside the normal styles of plugins I make. It’s taken a lot of work to get this far and I couldn’t have done it alone. Everything from the basic JUCE framework and technique for ‘building plugins directly on Github’ to the support for the new CLAP format is thanks to Sudara and his Pamplejuce framework, and before then, Baconpaul from the Surge XT project without whom the basic concept for the plugin couldn’t have started. It takes a village to make (and maintain) this sort of plugin, and my efforts couldn’t reach you without these helpful open source developers. There will be more, and I’ll do my best to make the new kinds of plugins reliable and exciting, while continuing to do my core DSP work as I have been doing. Meter is CLAP, VST3 and AU for Mac, Linux and Windows.
What’s this?
I can measure the hit-record-ness of audio, and rate it by how compelling and attention-getting it is, and also by how commercially successful it’s likely to be. Those are NOT the same things, but points along a scale I can define as ‘density of ear-catching events’, where the ‘vibe’ of the hit record is determined by how intensely it hammers you with these events.
None of that has anything to do with ‘maximum loudness’ and in fact loudenating will hurt you, provably, and kills the energy-build whenever it kicks in. The secret is distribution of peak energy.
The events I’m talking about are the combination of PEAK (not RMS, you can safely ignore RMS. Really) energy and slew rate. There’s a balance between these things and every known hit record noise, whether it’s Steve Perry belting in Journey, or James Brown screaming (not shrieking: when he makes cat noises it’s a completely different type of energy) or hard-hit drums mixed just perfectly or Burial hitting the perfect sub-bass or nearly everything in a Mutt Lange mix, nails this balance. It’s most easily understood as ‘the aura (of peak energy) given off by passionate performance’ and it applies across the board, from Count Basie to Ace Of Base. (brief examples of each are given in the video)
The Airwindows Hit Record Meter (or ‘Meter’ as it’ll show up in your DAW) will show this directly. Did you think you ‘can’t hear peaks’? Doesn’t matter, now you can see them. And where you place them is hugely important. You can cram them all up as close to clipping as you can get, and have LOTS of them constantly, to get a sound that’s just as attention-getting as any loudenated sound (as squashed sound cannot technically BE any louder than clipping, it can only have more distracting distortion layered on). Or, you can make sure you have some of the peaks crammed up toward clipping and doing their job optimally, while having the ‘cloud’ of peaks occupy a bigger space that is still constantly in flux.
And doing that consistently scores higher in Billboard chart rankings, and overall SALES, than the hyper-aggressive stuff. But the extreme stuff does get attention very well… and as long as the peaks (and their respective slews) are where you need them, it makes NO DIFFERENCE whether you have high or low RMS loudness and in fact you will do better, get more attention, and sell more records if you have the peaks maxed out and optimal, and the RMS as LOW as you can get it to be without losing the constant peak energy.
You can even target comfort and vibe while still having sparkle and peak energy by aiming for it using this meter.
These are strong claims but you know I’ve been working on this for literal decades and had the beginnings of this in ‘Mastering Tools’, which existed before any of my plugins, before 2007. This isn’t new, I’ve just been able to put the work in and I figured it out. You don’t even have to use my plugins to make stuff work using this meter: I try to make stuff that’ll help, but you could do it with anyone’s plugins, or with hardware and tape machines, or indeed with any basic DAW right out of (in the) box. It’s all about shaping the peak energy, balancing it with slew, controlling the slew and creating the ‘cloud of peaks’ at the density you want, with the volume of the peaks constantly varying between whatever amount of ‘space’ you want (18 dB is a lot, 12 is nice, 6dB is getting on the loud and fatiguing side) and clipping, without actually clipping.
But we’re getting ahead of ourselves and I’m not the only person able to tell you how to mix hit records, even classic evergreen ones. It just looks like I’m the first to be able to give you visual reference to what’s supposed to be ‘inaudible’, and that’s Meter. For now, try this meter and see if you can recognize the various hit formulas (for instance, vintage southern rock, or 80s, or intense sixties and fifties hits) and explore them a little.
I’ll be back with more tools for shaping the sound, but I’m very excited to have this new insight into WHY to shape the sound, and what to do.
And almost by definition, loudness war not only breaks this (by outright removing peaks) but also kills the rising energy of a track AND sales potential… because even doing this perfectly, the very highest energy/attention levels do NOT make for Top Ten hits. I’ve measured over 600 hit records from Count Basie to the Beatles. It doesn’t matter who you are or how good you are, if you push the intensity too far you lose the mass market… and this is by definition what loudness war tries to do, except it also ruins the sound with distortion where music energy’s supposed to be.
Use this tool to stop doing that, and if you still want ultimate maximum overwhelming obliterating energy, do it properly from now on and your work will last :)
Wow Chris, what a fantastic idea you’ve created. So much put into it. And great advice in the video. I’ve been testing it out and have a “warning” for anyone interested, a bug report (or at least I think it is), and then a question for you Chris (or anyone who might know!)
The “warning” is that it can take quite a while for it to analyze the signal. I tried looping a 10 second consistent segment of a song and it took minutes to get from F all the way to B, even though what was playing was exactly the same loop over and over.
The bug is that the lettering meter only goes up, but never down. I imagine this is why on the demos in the last part of the video it starts at BA and gradually goes up to AC, but then it just stays there at AC for 20 minutes…
My question is about the second letter. What is the meaning of it? Is it just like a decimal space? So if I consider Biggest to be the best, so number 10, BF is something like 9.2, BE 9.4 and BA would be 10?
Marvellous, thanks. Except that Github no longer works on Win32 so I have to use the Windows10 machine which has to update before it will connect to the internet, then warns me that three 5-year-old passwords are compromised and is slower than a snail with Parkinson’s disease. Progress, right?
Cant run on my 32 bit machine and need a workaround. It traces two red lines in the middle section and one in the top.
Just to reiterate what David mentioned above – on my M2 Mac running Sonoma 14.4.1 the meter’s assigned grade only seems to go up, never down. This is not the most helpful for trying to pick through muddier & less refined bits of the track (say, a final verse where all instruments & tracks come together for added effect). Would definitely be nice if there was more real-time response to changes in the mix! That said, a great tools for quickly assessing an under-rated facet of audio!
Wish I could contribute more to your efforts than I currently do, as your plugins are the life-blood of my DAW. Alas, I am an underpaid chef who produces music for raves as a hobby. So thank you for letting those of us who love music (but can’t hope to make a living from it) make use of your work. And a special thanks for making them all real-time processors!
Should there be some sort of weighted score to account for BPM? Playback speed shouldn’t affect score, but it currently does, right?
If rain has indeterminate BPM, one should be able use Meter to create chill mixes at any tempo.
Is it possible to have a very high BPM track that rates D or E?
Chris, this is an incredible achievement and a potential boon to the music industry. THANK YOU!
while you’ve explained much about the meter, I would appreciate a more complete explanation of the lettering system. What s meant by each letter, and each pair of letters. Further what is being characterized in each category.
Thank you,
It would be awesome if there was a thread, or an active subreddit where we could upload results from different genres and compare/discuss them. For example I measured Mono/Poly – Cryptic Bell whith it (ripped from youtube) which I think sounds great and it was very different than I expected (granted I’m far away from a proffessional).
Thanks Chirs, I think this could be groundbreaking for a lot of people!
I still can’t get Hit Record Meter to work properly on my Windows 10 22H2 PC with RME HDSPE AIO Pro sound drivers. In the Audio/MIDI settings – Windows Audio just draws flat lines. Windows Audio (Low Latency Mode and DirectSound gives me what you see in the linked picture. It doesn’t matter which volume my audio is at. https://imgur.com/u5uCCEA
I like the concept of the hit meter. But there is one thing I don’t understand. When I put a utility plugin after the Ozone Limiter and turn it down from -11 db rms to -14 db rms (the Apple Music streaming standard), the meter changes from AA to C or B tier. Why does a simple utility plugin influence the meter reading in such a drastic way?