Acoustic Panel Placement: When To Use Absorption, And When Diffusion? - AcousticsInsider.com 

I watched your videos. I googled alot of things, then I went to the Hornbach and I flilled my room with 9 x 16 cm deep 120x60 absorber panels filled with rockwool. Im very happy with the results. I've heard more detail in reference music than ever before. I filled about 15% of the surface area of my room with absorbers, placed the speakers and sub on the 38% point and I use sonarworks. I couldnt sleep last night; I was listening for hours, as if all the music was presented to me for the first time. Thank you!

Always great content- and this one is especially helpful! The 'right tool for the job' question is really fundamental as you said. Most of us are indeed working in small rooms and your logic makes a lot of sense.

Dude, this video helped me so much. I was going to build a diffuser but now I know it isn’t going to work for my room. Thanks a lot 😊

Jesco is the man! I have to admit that for a period of time I was captured by how COOL a bunch of skyline diffusers would look in the back of my room - even though this video nails down my room: problem = low end. Fortunately, cooler heads prevailed :)

In my 10 1/2 x 12 1/2 home studio and drum tracking room, I had to compromise on both diffusion and bass trapping. I needed to maximize the space I had to fit the drums and other gear into the room so my bass traps are in the corners (GIK tri traps) on the ceiling as clouds (4" deep and 4" off of the ceiling) and as three freestanding gobos (4" thick) that I can move around the drums while tracking and put in the first reflection points when mixing. But I did some tweaks to the traps... the flat wall behind my speakers and opposite the drums has a large pair of Gik 4" bass traps, but with their diffusion plates... this scatters enough of the high frequencies from the drums that I no longer hear any comb filtering. I also have range limiters in the corner bass traps behind the drums to keep the room from being too dead. Overall it seems to be working well and my drum recordings sound very good, albeit a bit dry since the room is so small and controlled.... which is where room modeling plugins come in! :)

Great video!

Nice video. Thanks. First, I am a music fan & not a mixer, producer or podcaster. My system is Vintage high end. I am new to room treatments. I have a multi-use room with a 5.2 surround sound system in it. am not sure where to start with treting this room which measures 18" long x 20" deep & 8" high. The walls are concrete. I have a 10" x10" Bay window on the left side wall & a 8"x8" cut out in the opposite wall. The rear wall, where the listening position is located, is a few shorer feet shorter than the front wall ehere my stereo is. The back wall leads to the front hallway ^ just around the corner us the back hall. I am leaning on treating the bsck walls first. But I have read that bass trapping is the best place to start. IDK about that because I don't play my music louder than 60db & I don't listen to hard rock. I value & appeciate sny suggestiins you can offer. Spoiler Alert: I ordered 3-4 foot wooden skyline art diifusers. So, I need to be incorporating that into whatever else I add to my walls.

Always great videos! Thanks for that. My question here is: According to your statement depth and width [wavenlength/2] defines the effective frequency range of a diffusor. Example of a theoretical diffusor: The lower design frequency is the max depth, let's say it is 10 cm, 20cm wavelength, 1700Hz. But what if the width of the divisions is 10cm, too? Then the diffusors effective frequency range would be 1700 - 1700 Hz ?! According to the Master Handbook of Acoustics the depth = wavelength and width = wavelength / 2. According to a video I don't remember the name, the depth is wavelength /2 and the width is wavelength /4. How can I evalute which is the correct information?

Thanks nice video! What if we place the diffuser in front of a absorber, not those slats but actual 1D diffuser? Also is it okay to put skyfuser 2D diffuser on the ceiling behind my head and listening position of roughly 2.5 meter high ceiling? So the distance from the head would be around 1.5 meter maybe bit more? It think it has rating of even diffusion from 1KHz and scattering down to 600Hz roughly?

Thanks again Jesco.

My room is a square with 8*8*8 and i have covered the 4 parallel walls with end to end rockwool but the roof portion and the ground is left and i dont have rockwool left so when im clapping flutter echo is coming so should i use a dIY SKYLINE DIFFUSER so it diffuse the freq which is bouncing between the roof and ground ! Will it work

I always see both in your videos and elsewhere vertical panels on your acoustic panels (like the ones behind you in this video). Is there a benefit to using vertical panels over horizontal panels?

Does this same advice apply to listening room / home theater or does the studio application deaden the sound too much?

What is a diffuser, what does it look like, what is a well? ...I wish that there were multiple images here for context & comparison.

Could you explain what you mean by small room and large room ?

I have a couple 100 pound dogs, things get very dusty and dirty fast. I want to avoid foam and fabric that will become disgusting allergen traps. What are my treatment options?

What about for a larger living room? About 21x14

Hey Jesco! Your videos and blog have taught me so much, you make this convoluted information so simple and easy to understand. I just have one question. Due to budget constraints I'm trying to build the panels without the wooden frames. I have seen frameless panel tutorials on youtube but they all use thin and very dense panels. They apply a coat of edge hardener to the corners to make them firm. What density of material would you recommend me to build 20cm deep panels? Can I spray glue two 10cm panels together or will that negatively affect the absorption? Or should I consider buying thinner and denser panels? Thank you mate!

Try so called abfuser. A mix of both world. Absorbing but not killing the freqs

Hi! I know I'm a bit late to the party, but I gotta ask; my room is roughly 4,5 x 9,5 metres. Still to small to consider diffusion? Say, on the back wall? I feel like my low end is sorted.

So here’s the question that comes to mind: if you have placed a lot of absorption already, where would you place diffusion or front panel diffusion to be most effective?

Just want you to know that I'm listening and I trust what you are saying .....I bought the book masters of acoustics ...you will probably realise if you listen to my recordings....they needed a bit of help.....but I recorded most of them on cassette 4 track in the 90s.....doesn't excuse me for my bad musicianship or songwriting.....most of my mixes were done in a 10 x 11 room....but in headphones.......Beyer DT 770 pro

I hear a little bit of sweet Persian accent, am I right? btw, I really enjoy and learn a lot! thanks for that!