Math and physics…oh boy!

Excellent! The one thing to point out is absorbers and diffusers are only effective at certain frequencies. Dealing with low frequency waves is a whole different story, with the same principle of course. Thanks for the great demo!!!

My room is full with furnitures, so I dont know what to do, sound is bad and flat.

What do you do for large windows on the rear wall behind the speakers or at the first reflection point?

thank you

Are room modes constant? Is it possible to move a mode through speaker placement?

ha, you only measured down to 30 hz. what about the remaining 10 hertzs never measured the 20hz to 30hz part that every stereo and home cinema reproduces? the only way to absorb 20 to 40 Hz is with activated carbon, as demostrated by denis fouley from acoustic fields. and your grafic 3:34 is a disaster. it absorbs nothing at the lows. it shows clearly a line that crashes down from 50 hz, a complete disaster. your company only can absorb the higher lows. which are not the ones that annoys the neighbors. i can tell i have a bassist neighbour.

Very helpful thanks!

Can a crying baby be murdered if it cries constantly on a four-hour airplane flight?

What is the frequency band in which your highest performance products work most effectively? Do you have rate and level data for specific room dimensions?

I agree with Mr. Kim below. None better than this video!

What an excellent video for folks like me who don’t understand much about that “field”. Thank you!

This video got that 90's video vibe

That was the best non-dork explanation I have ever seen and heard and.... understood perfectly. I have seen many of those 2 basic acoustic panels in all kinds of theaters in the many countries I visited. I was told it was to help engineer the sound better for this particular building. I thought it was all expensive BS. You just PROVED me wrong and I thank you for that. Being proven wrong is not a bad thing because it is one less item I ever need to worry about.

This is really great, you are the number one teacher, thanks for the explanation and information

Where is sound engineer-Barbie?

First time knowing diffuser

Best video

Bill nye who? Jon!,jon!,Jon!,jon!jon!🤘

Wow! This is the best explination I've found.

Great video.

Incredible

Very excellent demostration.

Hi

Graham Hancock what

Video really said read the instructions 😂

Thank yiu

No doubts, room dimensions are critically important for good sound reproduction, especially for low frequencies. Nevertheless, if we have the limited space of variables, which fully determine the sound result, it means, that among possible room dimensions for known low frequencies source position (height) there are the best, the worst and medium sets of such a room dimensions. The best room dimensions set for low frequencies is understood like for having minimal spread for amplitude-frequency dependence in range 20 - 150 Hz. Corresponding to this thesis, we can have (or not!) so-called Acoustical Dimensions for this room. Do you agree?

Brilliant

your explanations and the way is presented is very good sir. good channel.

Animation was invented in 1980. People before 1980:

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helpful

Made plenty of sense🔥🔥🔥

Awesome! Thank you

قال رسول الله صلى الله عليه وسلم : "ما على الأرض رجل يقول : (لا إله إلا الله والله أكبر وسبحان الله والحمد لله ولا حول ولا قوة إلا بالله) ، إلا كُفِّرَت عنه ذنوبه ولو كانت أكثر من زبد البحر " . رواه الحاكم بإسناد صحيح

If I had millions, I'd build myself a training room designed to amplify vibration. I've always said I'd have to find someone who specializes in acoustics. I'm keeping this channel saved.😊

I've been practicing a secret technique for the last 12 years and need to find a good place to perform it. think I found it thanks to you. stay tuned

I'd prefer a cluttered room. I am not a tidy person I can admit, but somehow my speakers sound better than in a designed film watching so colled home theatre rooms

So in my understanding. If you want to achieve the best sound quality from your home theatre system, you need to get out on to the open ocean where are nothing near by in about a couple of hundred meters to reflect the sound back to your ears including the surface of the water, sou you have to be around 4-500 meters above sea level and in the middle of the sea to achieve non existen echoes and you can hear the pure sound of your home cinema system. or get in a well clustered room to get almost the same result.

So to be perfectly hones do watch films in cluttered rooms as clutter helps achieving more "natural" sound feed from your sound system.

This is why I don't like going in movie theaters as their sreening rooms tend to reverberate bad enough to be ruin the sound experience. I am not a tidy person to be perfectly honest my room is cluttered with all sorts of things mainly dragon figures and and empty wine bottles (yes I am lasy to get them out of my room and put them in the recycling bin) somehow films I watching in my room sounds more natural than in the accoustically designed movie screen room! So this clutter absorbs, diffuse, reflects the soundvawes just in the right manner to make my speaker sounds perfect! I have moved my speakers in a tidy room but they sounded horrible too much reverberation and other unwanted noises....

Now it's experimentally proven 706 type of insulation works down to 80 hz

After i emptied whole apartment for renovation, i heard strangest sounds coming out of street by cars, busses and dogs barking. I thought i was loosing my mind or that my ears were fucked up. I decided to record those sounds and i recorded every one of them. Only then i calmed down

line your room with book shelves

Awesome video. Thanks for sharing.

Yeh. That’s all very well in an empty room, or a dedicated listening room containing just the hi-fi rig, listening chair and maybe beer fridge. But in the average family lounge, carpets, curtains, rugs, sofas, cushions and a whole host of other soft furnishings, are likely more than sufficient to ensure acceptable RT60 levels.

I'm worried that low frequency bass is slowly killing me in my tiny little bedroom

but why don't people like fully dead sound rooms?.. I love it. The "after" sound in this video is way too much reverb for me.

The Great Explainer !!!