Let's build this Unreal Niagara audio visualizer within 10 minutes

[@maiskorrel]

For people that use 4.26 and having the issue that the cube meshes are not showing in the preview : go to Initialize Particle -> Mesh Attributes set the scale mode to uniform (it's by default in unset).

[@PHATTrocadopelus]

Thanks SO much!!

[@DarksealStudios]

ty, forgot this

[@JoshGRAMBO]

GDamn Hero ty

[@jinnoh1968]

Thank you SO much. Saved my life

[@unrealengineruseng9583]

Thank you man !!!

[@Sigillimus]

For those using Unreal 5.1 and getting a thick line of particles that basically follow each other around @2:39, you need to set the Noise Frequency in Curl Noise Force to something higher than 0.001 like in the video. I set mine to a 0.75 and got similar results but feel free to experiment between 0.5-1. Also try reducing the Drag to something lower than 10, I chose 5.

[@pricklyprickle]

thank u!

[@JLDraco]

TY!

[@沈诚-r9o]

halo，in ue5.3，the ui of mesh render which is the render below the hangging emmiter is not same of the ui in Vedic which is in ue4.where can I get the same ui.ths!n

[@ghostmasaki]

2:30 to get the same movement for the particle in 4.26 - put -1 in the noise frequency

[@arzonfireemoji4625]

Bless up my g

[@samkyclance4329]

thx

[@walim7634]

thanks

[@al-mawhibacreativecommonvi3866]

thanks so much

[@MrAntyaz]

thx!!

[@whoiamudunno4283]

For people cannot find MasterSubmixDefault go to edit>project settings >engine>audio>mix double click master submix logo and save it. You will then see it appears in the selection. 9:55

[@ottonik8605]

otherwise, if not shown in the dropdown go to the settings wheel on the right side > content > show engine content

[@dekocklukas]

Those doing this tutorial in 2022, set your Curl Noise Force to 1. Not 0.001. Else you wont get the swirly movement.

[@connerwitte3287]

Thank you!

[@CargoChuck]

Thanks for that! Saves me from yelling at particles that don't really want to listen to me.

[@DamonomadMusicExperience]

Thank you!

[@BramFritz]

Thanksss yes yes

[@ZakkeV]

thank you so much.

[@brenolad]

Scale Mesh Size - It's important to set the mesh scale to "uniform". - Click on the main niagra stack node - Search for "Mesh scale mode" - Set it to "Uniform" in the dropdown Edit - awesome tutorial!!

[@ottonik8605]

hi, in the niagra system, where do i have to add "mesh scale mode"?

[@pmc3d431]

Thank you for posting this, Sem! Excellent tutorial! For anyone trying this in >UE4.26: I couldn't get it to work until I read someone else's post about changing the sound drivers. My workstation is running Windows with Realtek sound drivers. When the Output is set to Realtek, I can't get this to respond to the music (same goes for other audio visualizations). I switched over to a different sound driver (like USB headphones, or in my case a Presonus audio interface) and that magically did the trick. This now works in UE 4.27 & UE 5.01 so long as I'm not using the Realtek drivers. One last thing - if you have a VR headset, I highly recommend you place the player start right in the center and scale up the Emitter/Sphere Location to like 1000. Enable Surface Only Band Thickness and Expansion mode to Outside. So pretty!

[@BATCH3]

OH MY GOD! THAT WAS INSANELY AMAZING! i dont wanna do anything else but tweaking particles in niagara! Thank you so much :)

[@muenzi01]

9:52 Master Submix Default: View Options: -> Content: -> Show Engine Content

[@davidgreenberg8456]

Not sure if I will ever even make this, but it was really cool to watch. Thanks!

[@elekktronaut]

So cool!! I'm doing AVs and generative art in TouchDesigner and I wanna expand to Unreal. This is exactly the kinda stuff I'd liks to do for now, thanks a lot!

[@sitrix6185]

Think about keeping the bulk of the work you did in TD and using OSC to send control messages to Niagara. This way you dont have to rebuild everything from scratch

[@Eazy-V]

I would like to take the time to thank you for this, even it could be seen as an old trick, it really helped me to reach my goal ! I also would like to point out that using the internal recorder brings up an issue with the sound. It doesn't get any effect from it since the recorder doesn't display any sound during the recording. Thanks a lot for your video !! *FIXED* : In the render movie setting just enable the "Audio Outport Format" as "Master Audio Submix". This should render the whole thing with some sound interaction. The track will loop over and over until the render is done so make sure UE isn't minimized. This will also create an audio file, which in this case may not be useful, you can delete it afterwards.

[@mihaiciocan2169]

had a lot of fun with this, hope you will make more tutorials on this, visuals reactive to audio, although I can understand you have more important things to do

[@DashM670]

I needed to make a visualiser and had no idea how to make one, this video explained it step by step and it was so useful, thanks you :):)

[@samarthgohel3624]

Yes, thanks for that Mesh Scale mode description. It was invisible without it. TYSM

[@kellywarner3748]

This is a wonderful tutorial, thank you so much for sharing! I wonder if it would be efficient to, instead of the work from ~7:33 - 8:30 (manually "padding" the output values to get them into a useful range), put a Remap Range node on the Break Vector X/Y/Z outputs and re-range the input range to a desired output range for each. This is the way I learned in TouchDesigner and it works nicely to preserve and adjust ranges.

[@LyubomirIko]

Ok. I was having problem - The particles didn't move in 4.26. I have try to fix it for two days, and finally I found the cause! So - I completely remove the drivers (Realtek High Definition Audio Codecs Drivers) and continue with the windows generic one. It work! And Thank you so much for the tutorial!

[@Future_Me]

Hey Mate, what do u mean with remove the drivers ? Deleted ?

[@LyubomirIko]

@@Future_Me if you have problems uninstall any audio drives you have installed. Windows have its own so you will still have sound.

[@kellywarner3748]

Heads up in UE 5.2- the Niagra Audio script we make did not show up in the list of available modules to add to Particle Update, even with Library Only unchecked, unless I saved/restarted UE. Guess it needs to index that way (at least on Mac M1). Workaround: I shrunk the editor window a bit and cross-dragged/dropped it from the Content Browser into the list manually, works great. Hope this helps someone. Also in 5.2, if you don't see the Audio Master Submix as an option at 9:45, click the gear in the Submix pulldown and check "Show Engine Content."

[@supremebeme]

Super cool, I turned my 1.6 multiplyer down to 1.1

[@djxjunel]

Hi, i've done every step.. but when i'm writing Audio from Map get "audio spectrum" it is not visualized

[@MrLouisCipher]

same here - thought it might be linked to an audio plugin - enabled all but still no luck

[@Rayquaza128]

Found you on Reddit! This is so nice. Keep up the good work

[@MrSquuqs]

So much easier than houdini. Thanks a lot !!

[@lukedegoede718]

Wow, that's awesome. I can't wait to see what you come up with next! I see after a while the second colour no longer appears as well as the main effect seems to heavily tone down, possibly a fault on my end but it's still awesome.

[@shimlaDnB]

the second color (and the first) also has an opacity slider underneath the color slider, the 2nd color opacity slider is set to 0%. you can change it too 100% or 1.0 to not have the color disappear over time. as for the audio reactiveness make sure that your sample is using the right submix as the one you've selected in the niagara system audio module, otherwise you can change the amount of effect the audio module has by multiplying the velocity multiplication with a higher value than 1.6 if that makes sense

[@TheBroCast1]

hi! when i add the scale mesh size. the cubes in the pre vewie window disapper. Dont know why this is? :/

[@komali2]

Change the MeshScaleMode Attribute in InitializeParticle Module from "Unset" to some other value, like "Uniform". Alternatively, if your version supports it, under "initialize particle," you can "mesh uniform scale" i believe to scale the mesh there.

[@bencrystalofficial]

@@komali2 You're my hero 🥳

[@christuusgnosis]

Very cool, nicely made tutorial.

[@bigtonyravioli]

top notch use of a computer

[@TheF4c3m4n]

Amazing Tutorial! I just set this up in UE5 with some Cyberpunk music and it looks cool! Thanks! 💯

[@TFx2TV]

Good tutorial, with a little help from people in the comments this is actually a really nice little effect to getting going. Keep up the good videos

[@doug8232]

Cool. Just a note, you don't need to split the x y z in your module, you can multiply/add vectors as they are without splitting and recombining :)

[@shimlaDnB]

jup! just make sure you don't multiply the vector with a float or it wont work, you need to multiply the vector with a vector but what's coming out of the audio spectrum is a float, so i could've gone two routes here and i chose the detour haha

[@doug8232]

It's actually fairly standard to multiply vectors by floats, though if you want to definitely do vector by vector math, I believe there's a node to turn a float into a vector (as you're using the same value for x, y, z) and then you can add/mult those around. Its all semantics though, this works, and it works awesome. This topic has been something I've been meaning to dive into, I wasn't aware UE did such a good job at making it simple! Next few years are gonna see some unholy looking games 🔥

[@alphastream364]

I had an issue where I couldn't find the mastersubmixdefault. Was I supposed to create one beforehand? Thanks for the tutorial

[@shimlaDnB]

oh that's a weird one! i just created an empty project in 4.25 to check if i had the mastersubmixdefault submix and it's there by default.

[@lukedegoede718]

@@shimlaDnB You need to click on the "view options" and enable "show engine content" which isn't always enabled by default. You will still find this in the drop-down menu of the submix section.

[@jonattaspoltronieri3785]

I had the same issue here, thanks for the answers guys!

[@kaushalbora18]

@@lukedegoede718 tysm

[@yonghokim5545]

THIS IS INSANE! loving your videos. Do you know if there is a way I can link the audio to live audio coming from softwares like Ableton?

[@SilentChaosProject]

via OSC

[@supersonic.design2789]

fantastic tutorial. thank you for the work !

[@aenygmamusic]

Just a heads up, when I added the script to the niagra particle, non of the parameters were showing. this is because the script wasnt exposed to the library. go back into the script and in the settings on the left you can change the library visibility to 'exposed'

[@pmc3d431]

Thanks for posting this. Still isn't working for me, but I appreciate your taking the time!

[@Detoxxish]

Hey, nice tutorial! I have a problem though, when I add Scale Mesh Size, my meshes disappear, nothing shows in the editor or niagara system. Any workarounds or do you know why this happens? thank you.

[@michaelbarrera9953]

Do this on 4.25.4, not 4.26

[@muitosabao]

On 4.26 you neeed to go to Initialize Particle -> Mesh Attributes set the scale mode to uniform (it's by default in unset), then it will work.

[@kryowake]

Incredible work

[@su97hong]

What an amazing idea Thank you for such a great tutorial

[@atomic7680]

Really cool. Going to try it this weekend

[@malcolmyang5662]

Real love your innovation and hope see more.

[@BekOhUploads]

Thank you so much! It's so cool and fun to create.

[@tahagungor9968]

It sucks big time you stopped making videos. You were one of the best channels doing niagara videos

[@shimlaDnB]

I didn't stop! my work schedule just changed a lot, i'll be making more videos again soon as i have some more time on my hands

[@MrXBJonte]

Please do more, these are amazing!

[@Video-by6lp]

Hi, great video. I have a question. Is it possible to set for each (Niagara FX) his own sound that he will render. So that 3 (Niagara FX) can change according to their specific sound ?

[@deekay5487]

BAAM...this is incredible! Thanks for that!...insane.😻

[@Kletz13]

Keep that great work up! I really like your style of teaching! Awesome :D

[@unrealengineruseng9583]

Fix 4.26 : Scale Mesh Size modules THANK FOR THAT !!!)))

[@Szaboo92]

Amazing mate! Really cool stuff and well explained. Cheers

[@sams_3d_stuff]

Particles go crazy whenever I add the Niagara Module Script on particle update, even when I don't have anything in the module script or set the multiplier and add to 0.

[@eduardclaudiufadgyas3365]

Hey, did you managed to fix this??

[@canyoupleaserunfast]

Yes Sem! Big Ups

[@yanhu]

Great tutorial! Too simple and So beautiful.

[@welchimusic7953]

@Sem_Schreuder cool tutorial, and super easy. THANK YOU! Now. How might one use 'system audio' or a real-time sound source in place of the .wav file? I wish to use this technique for visualizing live music during a performance as a video background. If the particles are able to react in-real-time to the music, I think we have a tool that is VERY useful for DJ's like myself. I'd like to try this live on my Twitch Stream if I can get it to work.

[@shimlaDnB]

You can follow VjFader's new tutorial on that subject kzbin.info/www/bejne/aaqcmoOheJyWfcU

[@welchimusic7953]

@@shimlaDnB Amazing! I got the demo version to work flawlessly per your master instructions. Now i just need to make some refinements and I believe it's ready for testing in the field. stay tuned ;)

[@The12MT]

awesome! I just found your channel and I am a huge fan :D Keep that good work. I am also interested in that light niagara system where you project videos on it? (Maybe without the additional software)

[@shimlaDnB]

can you link an example ? now im interested

[@The12MT]

@@shimlaDnB kzbin.info/www/bejne/rWWzYWNpqK6KoMU I mean that video. Without knowing how you exactly created that it would be interesting to see that example without external software. To visualize a video for example :) cheers, Felix

[@shimlaDnB]

@@The12MT aah right! that's actually not a niagara system hehe, it's a blueprint with NDI input. you can download it here: data.goeiegoeie.com/s/PBF0QcnedYvjhuXL

[@zakirali8721]

thanks for sharing. really nice

[@truewiking]

thank you so very much for this, works like a charm 💯

[@auto_Silencer]

Where is Ni script Audio?? I can`t find it on the particle update tab ( even with unticking "only Library" box ) ??

[@danieledenaro8371]

READ IF YOUR PROJECT WON'T OPEN ANYMORE: It can happen that you disable your mic to use a different one or you transfer the project to a machine that do not have a microphone, in that case the map will not load, just enable the mic again and it should work, it took me the good part of one hour to figure it out, just in case somebody has the same problem

[@pranavsawant1439]

You are a legend!

[@flooblybub]

My hero

[@LLPTV]

Trying this out in UE5. If I switch to GPUCompute AND/OR tick Fixed Bounds the cubes spawn and start flickering, what gives?

[@paulunreal8526]

amazing..love it

[@awesom4ik]

thanks a lot for this tutorial!

[@raghidjomaa7307]

Thank you! I'm wondering if there is way to get into more detail of the audio spectrum? The current system is much more sensitive to lows(kick and bass) than to mids and highs. Is there a way to make it more sensitive to mids for example? Thanks!

[@ottonik8605]

have you figuered it out yet mate?

[@jedizhawk]

These are high-quality pixels

[@yumayanagisawa]

Amazing! Thank you so much.

[@wooshboots3472]

This is AMAZING!

[@RohanGopalan]

This is so cool! Thanks for sharing.😀

[@leamulliez9015]

hello I encountered a problem when I build the project with the code you made. when I launch the game it crashes immediately with an error message: Assertion failed: IsInGameThread()

[@D0d_]

Thanks a lot for this :) I'm having a problem with the render queue though, it seems like the Niagara system is not rendering correctly and the audio is playing twice when exporting remotely.. very weird. Should I add multiple niagara components to my level sequence ?

[@shimlaDnB]

i've made a seperate video about this, please check my channel

[@KletosMinistries]

Thank you very much!

[@shivendrapawar9618]

Awesome man!! please make more tutorials

[@albertusbodenstein1976]

Legendary.. !!

[@gsudhanthiran]

OMG, this is Awesome!!!

[@ReubenAStern]

Great video.

[@zyk0413]

'' le moment suprême '' 😂 Thanks for the vidéo :)

[@Future_Me]

Hey dude, awesome tutorial!! Do u know if there is a way to have an live sound input so it reacts to the music I am hearing at the moment?

[@chriszuko]

Thankyou have a great day!

[@bufuak]

Wow, that's inspiring! How can i fix flickering? It keeps distrub me, but anyway great job!

[@shimlaDnB]

for me it helps to reduce the size of the meshes in the scale mesh size module. instead of 0.1 try 0.06 or something as a start point. otherwise reduce the spawn rate. I noticed that the flickering happens when there are too many meshes overlapping either by size or position

[@jonattaspoltronieri3785]

Same here and 0.06 is works perfect!

[@cryptobeard]

If your whole Niagara Sim is flickering update your driver and turn off anitalising

[@shimlaDnB]

what also worked for me is setting the fixed bounds max to 2000 for all the axes.

[@tarekwayne9193]

What I don't get, however, is why flickering occurs with GPUsim enabled, well, I think it's related to enabling fixed bounds, which is a must if you choose GPUsim.. However, I never get flickering in CPU(also because I don't use fixed bounds in CPU). So I guess I'm wondering why it occurs with fixed bounds... Maybe what Sam said about overlapping etc

[@alperenyuksel6354]

Hey man, Awesome tutorial. I have a question. Is there any chance to export the output as a movie? After I hit render the output does not include the response for audio. All I have just swirling particles without any beat.

[@shimlaDnB]

you can record your output in realtime with obs, or you can use movie render que in unreal. make sure to add a music track to sequencer, set the framerate of sequencer to the same forced framerate of your movie que export and make sure to export .wav as well. then the audio and video are synced and the particles should react to the music

[@alperenyuksel6354]

@@shimlaDnB I think I accidentally found that adding the track in the sequencer way. Thank you so much I will try other ways too.

[@Ornub]

Hey, really great quality, your tuts are really good, thank you. Newby here, i was able to reproduce all the settings you showed but how can i change parameters for reactiveness/puch to the beats?

[@shimlaDnB]

interesting question! so the audio module gives you an amplitude from 0 to 1 right, because it's normalized you can try squaring the amplitude with pow. that creates a parabolic curve, pow 0.2 would be not snappy at all, pow 4 would be super snappy.

[@ferlaur113]

Great stuff, thank you. Would you share this project in the cloud, for us to prototype, using your skill and knowledge?

[@benjaminszilagyi8661]

unreal 5 still work well! Thank you !

[@StevenDiLeo]

Great stuff!

[@UnrealArtist]

Please more tutorials like this

[@ivonbonny1356]

wowww.....Great, You are awesome!! thank you

[@syno3608]

Thanks yeah

[@tricks3594]

7:47 *looks up definition of recude* ... *realizes he meant reduce*

[@King1Street]

PLEASE MAKE MORE OF THESE VIDEOS!!!!!!!!!!!!!! THERE SO GOOD!!!!!!!!!!!!!!!!!!

[@youngbamboo1656]

Question: What if you compiled this into an actual app.. how would you add a render button that renders that certain time sequence?

[@ArtOfDarkRaven]

Thanks for this wonderfull tutorial, i need help for an issue , when i try to render from sequancer, renders are coming out with empty images, could you help me for this or can u take another tutorial for this issue, i tried everything that i know but smthn working wrong. just i need render setup tutorial

[@ivanlebed]

Have you found a solution?

[@doubledigital_]

I got color to dance to the music on beat! :D only took me 3 fkn days to work it out hahaha

[@VisualBeatLab]

Very nice when adding a ton of particles I start experiencing flickering were the objects disappear and reappear when using really high spawn rates like 30k +. Can the collision or whatever is causes the flicker be fixed somehow without having to size the objects down?

[@urgisjot]

Amazing!! Do you have an idea how you’d do that same effect but instead to trigger camera movement ?

[@nehalsinghrajput7354]

That was a good tutorial, but can you tell what's that MasterSubmixDefault submix is and where to find or create it

[@datsik47]

Brilliant visualised side chaining 🥳 How could you export a clip In the sequencer ? Do you have to bake the animation or something ?

[@hevilmin5510]

any solution?

[@datsik47]

@@hevilmin5510 yes you have to add a niagra component & a live system track in the sequencer, then change properties to desired age & you can scrub through the timeline :)

[@hevilmin5510]

@@datsik47 Awsome!!!Thank you so much,i'll try

[@xXlNiceGuylXx]

@@datsik47 What do you mean by "a live system track"? When I try to render my sequence the audio plays in real time, so the renderer can't keep up, even though the music has been added in the sequence and should last a lot longer. When it ends it seems like UE4 notices that it should still be playing the track causing the end of the song to loop.

[@datsik47]

@@xXlNiceGuylXx you add into the sequencer timeline & it will bake the animation into the sequence

[@raghidjomaa7307]

Awesome tutorial, new to UE4 after i add the script audio and press the drop down menu i don't get any options like the master submix default. Do you know what could be happening? thanks!

[@shimlaDnB]

i accidentally skipped over that part, but in that case you need to click on the "view options" and enable "show engine content" which isn't always enabled by default. You will still find this in the drop-down menu of the submix section.

[@tom.konxompax]

I presume there's a way to have is use a live audio input instead of wav?

[@tom.konxompax]

Just learning how to pipe CHOP data from TD now hehe

[@job1506]

awesome tutorial! the only thing I was wondering is wether I can make the particles reaction snappier? I'm doing this with house music which make the particles seem a bit slow.

[@ericrius1]

Thanks for the awesome tutorial @Sem_Screuder! It's working well for me when I use a pre-recorded wav file, but when I switch to using the audio capture component I'm no longer seeing any audio-reactivity. I know my mic's working because I hear my voice coming through the speakers when I'm running the editor in play mode. Also made sure audio is being sent to correct submix. Any ideas of what the issue may be?

[@ericrius1]

Figured it out- my mic was plugged into channel 2 of my interface so just switched channel to "1" on the audio spectrum node in the module and it works great.

[@ParkinsonMax]

@@ericrius1 Hey Eric, I was wondering the same thing. I cannot for the life of me figure out how to use it with the audio capture component. I've tried your suggestion of changing the channel index in the audio spectrum but no luck.

[@bradicalmusic]

Super cool! Have you been able to create 2 different effects that are affected by 2 different audio sub mixes? I am not able to get unique reactions when assigning sub mixes in the audio module.

[@DarksealStudios]

awesome

[@cyviman6625]

Amazing!!!!!!!!!!!!!!! Thank you so much😭🔥✨