10 Things They Don't Tell You About Acoustic Treatment - www.AcousticFields.com

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- - In this video we're going to talk about 10 things that they don't tell you about acoustic treatment. We will once more cover the basics of room acoustics, the difference between pressure and reflections and why the right choice of foam is critical. Watch the video to find out more!
#acoustics #audiophile #producers

[@PentaxBlogger]

Man, this is really valuable. After hundreds of "repeating" videos all of the same "hacks" finally someone who blow other out of the water with knowledge. Thank you. Worth watching.

[@AcousticFields]

Glad you enjoyed it!

[@danielroley]

After being confused by hundreds of KZbin videos, I've finally found someone who knows what they're talking about!

[@AcousticFields]

The industry is all about half truths and exaggeration. The problem with this approach is that your music suffers.

[@dallaswright9249]

YOU ARE THE PROFESSOR OF SOUND THANK YOU

[@AcousticFields]

Thank you. We have been studying it for a long time. We have also had the opportunity to build over 300 rooms. The study along with the actual build experience is in valuable when it comes to creating a quality sonic presentation value.

[@kleinkourtney]

Thank you so very much. One of the best videos I have seen on this subject.

[@AcousticFields]

Glad you enjoyed it!

[@davidstein9129]

Thank You Dennis for sharing this extremely important information. There are lots of unscrupulous companies selling acoustical panels that either don't get the job done or make it worse.

[@AcousticFields]

We find that both are true.

[@juricabura8967]

Thank You very much!

[@AcousticFields]

You're welcome!

[@Pervatory]

Thanks as always Dennis, very helpful info

[@AcousticFields]

Glad it was helpful!

[@sonicevolution5139gdae]

Thanks for another great video Dennis, I like that yu mentioned tha issue with drums. I think that it’s crucial to retune tha acoustical instruments like drums 🥁 and acoustic guitar 🎸 every time they’re going to be used in a different building so that they’re and sounds natural, as in tune with their surroundings. I’ve noticed that it makes a huge difference in tha way tha instrument plays and sounds afterwards.

[@AcousticFields]

A ggod example of how the room affects sound quality.

[@milkman100001]

thankyou for all of your time and expertise for educating us on how to make things sounds better. since ive come around to the fact that to have great sounding music doesn't always mean purchasing expensive hifi equipment, ive started to purchase panels to change / clean up my 2 channel music. ive started with 2 x bass traps and as soon as i placed them behind my speakers i heard a huge difference.much more than any upgrade hifi unit i could have spent my money on. sounds shaping is much more effective. thankyou..

[@AcousticFields]

We can take a 5 K system and place it in a 50 K room and it will sound like 50 K. We can also take a 50 K system and place it in an untreated room. It will sound like 5 K. The room acoustic variable accounts for at least 50% of what you hear. It must be treated. If a cable accounted for 50% of what you hear, you would have cables made of moon dust and diamonds with a cost of 50 K / foot.

[@cyprien153]

Great videos! Thanks for sharing knowledge

[@AcousticFields]

Glad you like them!

[@__the_ufo__8462]

Excellent advice Dennis, great and informative video as always. Thanks

[@AcousticFields]

Glad you enjoyed it

[@dacoust-acstudio6830]

You are right in your exposition

[@AcousticFields]

The industry is full of half truths, exaggeration, and hyberbole. Its a full time job staying ahead of the nonsense.

[@PanAmStyle]

This is excellent. I have sent the link to a couple of 2-channel friends who have had all sorts of misconceptions about room treatment. I’d send it to my local dealer, but he has been very good to me and I don’t want to piss him off right now 😂

[@AcousticFields]

Knowledge is power. Power properly applied creates resolution. It's class A amp power versus class D.

[@TerryMeighan]

Recently graduated with an audio engineering degree and about to start treating my home studio. Just discovered this channel and the information is the best I've found after being subscribed to a few. Love the honesty you give and have gained a new subscriber. Thanks

[@AcousticFields]

Thank you. Focus on lowering the noise floor as your first priority with the proper barrier technology. Treating the low frequency pressure issues is next and you can do that inside the walls or with free standing units. Middle and high frequency issues are treated with wall hanging units.

[@TerryMeighan]

@gerhardochsenfeld9588 It's quite a small control room, so wouldn't have the space for diffusion to be practical and beneficial

[@gerhardochsenfeld9588]

@@TerryMeighan What means 'quite small room'? How to keep the bass energy down with porous absorbers? The more the room is small, the more those absorbers will fail.

[@TerryMeighan]

@@gerhardochsenfeld9588 Same with diffusers, as they require more space to scatter sound effectively

[@AcousticFields]

As a general rule, 5-6' is minimum distance.@@TerryMeighan

[@davidstein9129]

Thank you very much Dennis for another educational vid & for debunking more of the lies that accoustic room treatment companies tell clients.

[@AcousticFields]

You are welcome

[@joelowens5211]

Basically can't you RTA your room and see where the dips are and flatten out response with various diffusers and absorbers? Audiophiles basically want to know cost and result when treating a room. Very few go this deep with that part of it.

[@AcousticFields]

You must reduce response peaks and dips using the proper rates and levels of absorption. You must also use the correct amount of pressure treatment to manage the levels.

[@dialecticalmonist3405]

How about a 30ft X 100ft warehouse? Is this closer to "no room at all"?

[@AcousticFields]

What is the ceiling height?

[@dialecticalmonist3405]

@@AcousticFields Looks about 12 ft.

[@AcousticFields]

@@dialecticalmonist3405 A 30' w x 12' x 100' would be good. We would not actually need the 100'. A 40' length would be good.

[@goldfinga786able]

How can I stop ultra low frequency entering from the bottom flat

[@vinylrules4838]

Requires $$$ and space to do it. 30Hz can travel through 6 feet of concrete.

[@FSXgta]

plug out their subwoofer 😂

[@AcousticFields]

You must define the frequency and amplitude of your noise issues. What frequencies and amplitudes are you concerned with?

[@windur]

Will rockwool absorb low frequency pressure or just reflections?

[@AcousticFields]

Neither. It lacks the proper rates and levels of absorption for music and voice.

[@windur]

Thanks!@@AcousticFields

[@johnkipos1427]

Too minimise Room issues bass pressure Open baffle speakers 1/3 of your problems are gone. It works less on pressure more on velocity No side wall interaction or floor too ceilings Controlled directivity. Box speakers where never intended too be used in domestic home use. The are omnidirectional something you don’t want in a room sound bubble expanding in all directions It’s always a compromise Home Hifi originated from theatres the rooms are massive Why put a box speaker pressure device in a home room? I stoped using traditional box speakers 10 years ago. Open baffle rules I hear no pressure in my room at all My bass is fast articulate can hear every note Lower, mid, upper. And I’m in a medium size room. Have QRD diffusers on front wall & two activated carbon bass traps on back wall that I built

[@AcousticFields]

Does open baffle design pertain to lower frequencies?

[@CraftAero]

13:16 "...especially when it's 30° outside..." I assume that's 30°F (-2°C) or, T-shirt weather in Canada. 30°C, (86°F ) wouldn't be a problem at all. I feel your pain every time you say "physics is physics" yet you speak in "freedom units".

[@AcousticFields]

Please define "freedom units".

[@CraftAero]

@@AcousticFields Feet & Fahrenheit mostly, but football fields and Olympic swimming pools are also distinctly American "measurements".

[@Harald_Reindl]

@@CraftAero well, in germany you use "soccer fields" to make sure the lower educated also understand you :-)

[@djhmax09]

🙌🙌🙌

[@AcousticFields]

Thank you.

[@gerhardochsenfeld9588]

While physicians talk about 'waves' and 'rays', when really taking about acoustic energy and simply pressure, THAT is the reason of the most important missunderstandings in room acoustics. There are no waves, no rays - but simply vibration. Sound energy is vibration.

[@AcousticFields]

In order to understand the issues you must look at the source. Wave and ray energy are the sources of vibrational acoustics. Without waves and rays, there would be no vibrations

[@gerhardochsenfeld9588]

@@AcousticFields Okay, back to the roots… up to the sources. The transfer of an energy, that we call ‚sound‘, because we can hear something (meaning the energy itself: not necessarily, while we can’t hear e.g. ultrasonic energy - but it is the same kind of energy), runs from part to part: from molecule to molecule. Doesn’t matter, if it were fluids or solids. It is the same in the air, in water, in a piece of wood or metal, or with the lowest rate of movement within a piece of rubber… In opposition to light, were there are photons moving (rays of light!), sound energy is blocked strictly by vacuum. Nothing new. Even not really new: A real vacuum is not necessary to stop the transfer of sound energy - while the space (universe) is quiet. However, space is at the same time not a really empty space! Any parts (molecules or atoms or any pieces of atoms, those like e.g. electrons) are simply a too seldom guest in the open space, so that they can’t transfer the energy of their own vibration to a next part. (by the way: Just the movement of molecules looses sound energy. But there’s no way to hear… Thanks to the human hearing threshold we don’t live in a permanent sough.) Rays of sound are useful for a geometrical model. But rays of sound do not exist. They are not real. To visualize sound as ‚rays‘ is a sometimes helpful model presentation. Not completely the same with ‚waves‘: Waves get real, when sound energy changes the medium. E.g. from air to a membrane. Or from air to water. The wave per se is an absolutely ONLY borderline happening. Sound energy does not exist as a ‚wave’ within any medium. Within any medium it is the movement of vibrating pieces (regularly molecules or e.g. atoms in a grid structure of metal pieces). To turn those physical facts into their opposite will not become truth by naming as ‚sources’.. A maybe not so good attempt of explanation: Sound energy is the struggle of pressure energy against the inertia of any masses. A slowly rising pressure has no sound - because there is no loss of excessive energy. Or let us read, what AI answered to a question about wave character of sound energy: ‚Sound is not composed of waves in the traditional sense; rather, it consists of patterns of pressure fluctuations propagating through a medium, such as air. These pressure variations, not wave-like entities, are what we perceive as sound.‘

[@chriswithall2518]

At last someone tell it as it is. Nothing said in this vid can i find fault with.

[@AcousticFields]

Companies take building insulation that was originally designed for thermal conductivity and call it "bass traps" and people believe them. They take open - celled foam and fashion it into a "diffuser".They then tell you to take both and place them into the corners of your room so they can mange room modes which are a result of the complete wall and its dimensions. The whole industry is full of half - truths and exaggeration along with hyperbole that is designed not for room resolution but to sell product. We will always focus on the ultimate room resolution possible cutting through all of these distortions.