Yes! Resonators don’t get enough attention. It’s not all about absorbing and diffusing. Not all resonance is bad, without it, we don’t have sound. ;-) v2.stereotimes.com/post/acoustic-system-resonators

And wrong. Bad advice all round.

If it was clear and basic why watch half a dozen times though? The more I'm digging into room treatments, the only simple answer I've found is that there is no simple answer to be found. It's measurements, many variables, with ultimately some trial and error as even a room simulation can't account for all the construction variables with your room, let alone the system and all the other stuff you're putting in there. Plus your big fat belly causing room mode resonances lol

Could you please elaborate? @@pierrelailvaux6227

@@laurabrown2014 You are putting the same advertisement link in multiple video posts, top spamming! And it's not soundproof curtains that is good for audio. It's high density cotton, polyester or wool curtains to absorb the lower frequencys 👍🏾

Alone In the Darkness I know, i actually enjoy watching some of these videos for a good laugh to be honest. 🤣

One of the Best Ideas of SoundProofing is "SoundProof Curtains" it actually Block outside Noise coming from Windows. Check Here: livesoundproof.com/best-soundproof-curtains/

Nah, he's a poser,.. there was no stamp on it.

I think he just takes printouts of emails or comments.

Paul McGowan Hi Paul. Based on the el cheapo system lol I have mentioned component wise what do suggest I do or change? I will look into the Golden Ears. Thx.

Your math is likely correct on that. I have had great results from angling my speakers up a bit. I also get the best imaging by not toeing them in at all and also maintaining an equilateral triangle between the two speakers and myself.

@@danmarjenka6361 the equilateral triangle is really great actually. My room however is so small that I need to toe them in or otherwise I’ve got big reflections off the side wall and back wall to worry about.

Nonya Damnbusiness I used a book case and filled the bottom two shelves with fibreglass insulation and covered them with material to form a great bass trap. The top 4'shelves are full of books and weird objects. It's not very scientific but it seems to work ok.

Hi: I am wondering if some kind of curtains could be good difusers. If so, could I leave the curtains a little above the speakers or take them much higher. Best regards Azhar Zaidi

Too much absorption sucks the life out of the speakers natural tone. For a normal living room - a carpet, thick heavyweight curtains, lots of soft furnishings, little to no glass objects. For the front wall a couple of sound absorption wall art behind the speakers. And some diffuser wall art on the rear wall.

Makes me wonder how I ever got so lucky. My system sounds pretty good. I guess we can complicate just about anything. Smiling.....

@@azharzaidi3264 The audio dealer by me believes in big curtains so much, he has floor to ceiling curtains, even though he has no windows on those walls.

I don't pay a lot of attention to microphone other than for Octave Record recordings and there we've got ours pretty much set. Looks interesting.

Just because the direct signal will hit your eardrum slightly sooner doesn't mean you're not going to hear just as much reverb bouncing around after the fact. You're still hearing your room just as much.

One of the Best Ideas of SoundProofing is "SoundProof Curtains" it actually Block outside Noise coming from Windows. Check Here: livesoundproof.com/best-soundproof-curtains/

@@laurabrown2014 that's very cool. In my previous comment I was making a joke. Quoting Anchorman the movie. But I am also interested in your non-joking link, so thank you. Also, watch Anchorman if you haven't seen it.

kzfaq.info/get/bejne/hcuZe9CaranTc3k.html

Every level of acoustic improvement is equal to improving your speakers about 2 levels, or more.

@@rb032682 Very good point. In a similar vein, I have worked on various custom motorcycles over the years, and of course I've had guys ask how they can get the best performance for the least investment. My answer, while sometimes not well received, was the obvious: lose that giant beer gut, gain 20 - 30 hp for negative dollars.

@@usaturnuranus - LOL. That's funny as f. 🤣👍 Did you ever get punched in the face after you said that? 🤣

@@rb032682 Probably had a few that would have liked to, but they couldn't move fast enough, haha.

Shoes, specifically trainers. They are hollow and made of thick fabric and dense rubber soles with air bubbles in them. I line some up behind me where the back wall meets the floor, and it seems to work quite well. Also a big pile of dirty clothes in the corner of the room helps too :)

Bass traps

@@FriedEgg101 funny guy…

Paul doesn't know what he's talking about. Small rooms have a problem with low frequencies and you can't treat Low Frequency problems with a diffusor. Diffusors only deal with mid and high frequencies and they tend to help make a small room sound bigger, by diffusing the sound. But you still need absorption to deal with side wall reflections AND proper low frequency absorption to deal with the low frequencies typically in the 100hz and below range, with 50hz and below being the biggest problem. I would seek out someone that can actually help you that knows what they are doing. I read RB's comments and he found Acoustic Fields. I have also listened to rooms with their products and I can honestly say, they know what they are doing. probably one of the few that actually have products to fix low frequency issues in small rooms. I would recommend, to go to AF's site, fill out the room form and talk to them about your specific needs rather than guessing. They might be able to suggest things that you can build yourself since they do cater to DIYers as well as sell pre-built products or ground up custom rooms. Guessing wastes time and money and Paul is wasting both with his recommendations. Paul's recommendations are horrible. It's no wonder he's not in the acoustic treatment business. You have to take measurements. if you have a room that's similar to another and they have the measurements, they can help you. otherwise you are guessing and you'll most likely guess wrong, use the wrong product and not fix the problem. Why would you want to do that?

Yeap, I have actually found some flaws in acoustic fields videos too, but their products seem to be really good and they give you the option to just buy the materials and build it yourself for a very reasonable price. I'm not sure about the Activated Charcoal acoustic properties they claim but I'm sure it's a better option than what this guy Paul is saying.

usir.salford.ac.uk/23061/1/JASMAN1321239_1.pdf One thing to note, this study wasn't using AF's activated carbon filters, which they make the pellets, but they also make the filters a certain way for their application. And they have patents protecting their IP. The DIY doesn't include the Activated Carbon filters unless you buy them. If you use the DIY plans, then at least it's a good dual wall diaphragmatic absorber, it's just more effective with the filters, and yeah, it saves money. People can also do DIY for wall construction so if you want to build the technology into the walls, they can facilitate that too. It's better to do it within the wall if you can. I talked to the owner and he told me he's involved with a bunch of top end studio projects after they heard the improvement in the mastering room at Capital Records. He said he'll be posting more videos on those other projects. I think he also said their was a large 2 channel private listening room that he's going to update the information/photos of the project. It was a ground. up build.. I actually went into of his rooms a few years back. From that demonstration of his treatment as I've heard and used plenty of the typical room treatment products and designs, I've never been in a better sounding room. Especially with low frequency. The bottom end was tight, it had great attack and decay, note separation, etc.. I know some of his videos might not be explained as well as he could have, but he's trying to explain things in a more easy to understand since most people aren't experts in acoustic engineering, but most of his videos are pretty good. I was taken aback and after that one demo. I think anyone that's going to build a studio or a high end listening room should at least find one of his rooms and listen to the product in action.. He does send out evaluation units when available, as he knows people need to try them in their own environment, so you might want to see if they'll do that with you. If you're interested. Here's a link to the University Study. usir.salford.ac.uk/23061/1/JASMAN1321239_1.pdf I read a while back, can't find the link, I think it was KEF that was playing around with activated carbon for internal cabinet fill material, but I don't know what happened since they probably didn't think of mfg. their own pellets because the pellets on the market are more for water or air purification, not sound absorption. AF told me they spent a lot of time getting the right pellet size, etc. and mfg. process. because he tried every available AC pellets on the market and they had to ultimately mfg. their own pellets.

Oneness100 thank you so much!!, really valuable information!!!

No problem. Happy to help.

I wish I could remember where I found that little ending ditty but I lost its source. Thanks for noticing.,

I tried absorbing and diffusing in one of my small rooms. Diffusing certainly sounded better and made the room sound larger than it is. When I absorbed, the room shrunk big time and so did the soundstage.

@@-MarkWinston- there’s always pros and cons with any approach. In studio you want monitoring accuracy so you use absorption s as supported by objective measurement and theory. Hifi rooms are about listening pleasure which is subjective so if you prefer diffusion at the expense of accuracy then there’s nothing wrong with that. Diffusion can also aid accuracy but only where you have enough distance and normally on later reflections - they are too narrowband to deal with first order reflection points

@@yellowledbutterhow about mixing diffuser panels and aborbsion panels on the back wall? So 1 diffuser, next to it an absorber, then diffuser, etc. Wouldn’t that work?

Those are terms most of us 'home studio'would not like not like to hear even we know there are a lot of information on KZfaq whattever ,those calculations concerning accoustic treatments are what even makes things much harder to grasp ,to be honest for low budget buddies we are out of drama .

Angel Galvez use a mirror on the wall to find it.

It always depends on the problem your eyes trying to fix, and nobody will ever listen in an anechoic chamber. Never the goal.. and that is just really more like headphones.. so people do like the chamber, they just don't like the other effect on the human body. Nothing to do with the music and reflections

Too much absorption makes for a dead listening experience, just like listening to a band in a club/closed room vs. hearing them outside is a vastly different experience. I much prefer bands in enclosed spaces, outside 75% of the energy is lost to the open sky. I’m always shocked at the difference in my enjoyment to the same bands outside and inside.

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actually yesterday i went in the backyard with my monitors. the big thing that improves is stereo perception and some leveling of bass freq. the problem is that you still have some walls even if they are far, and a sort of floor, which still influences bass. then you may have a small wind that annoys your ears, and you still have some sort of neighbors which make some sounds, and because of this you have to raise the volume so you can hear the details of the music. it's not worth it, at least in my case. i prefer to improve on the first reflection points, and even eq OUT some freq in the bass. imo closets are good for acoustics, a 98% closed closet with clothes traps low freq. i haven't tried membrane traps..

unless you paid the speakers and amplifiers for that environment in good quality

Agreed, Quadratic diffusers need big dimension to attack the most problematic frecuencies in small rooms; BASS notes, plus it's recommended to be at least 10 feet away from the diffuser to work properly

In small room you need at least absorbing material at first reflection. Ceiling, floor, walls on sides, and wall behind the speakers to get it optimal. Then you can go with some diffusion too. But most rooms people live in has some diffusion in them.

@@oysteinsoreide4323 you’re calling a front wall a first reflection? What do you mean floor? People actually treat the floor?

@@dougleydorite some fluffy carpet can be an ok treatment for the floor. But with treatment, you must not go overboard. Add gradually until desired effect. Too much treatment is also a bad thing.

@@oysteinsoreide4323 I’m actually in the process of removing my carpet because it only absorbed past 750hz, making the whole room sound dead. Personally, my first reflection is from the desk and not the ground

Exactly.

Alexanre, you're right, but the question of the video was about small room acoustics where you can't control bass really with any kind of treatment except active bass traps which are too expensive. Paul was right to mention about diffusion. Skyline diffusers, for instance, do both equally -- diffusion and absorbtion thanks to the nature of math formula and construction. The Blackbird diffusers's lowest frequency they are designed to work with is 170 Hz.

I don't bother about absorbers etc apart from acoustic open cell foam on my speaker stands. Have thick underlay under a carpet plus a big wall canvas and curtains other side. I just sit back and enjoy the music coming out of my bookshelf speakers 🎶

Always in the corners.

I plugged the ports with foam.

Look up quadratic diffusers

@@chinmeysway Is that the only type of disfuser that you need to cover the full frequency range? Let's say 1-100,000hz? Or am I still going to need a combination of every type of disfuser in separate panels?

Only joking Paul ... I do enjoy your video's

IMHO, Paul is doing a terrific & very professional job! He's keeping his mail response ratio........... flat. ;)

It might be Steffen, a common name in some countries, in which case the pronounciation is correct.

Good absorption