"Acoustic Fields" on YT does the math

[ozzy9832001]

I Defend the idea that 30-300hz needs treating and most companies do not offer any products that do that, yeah sell 'bass traps'. Some that do like RPG have no youtube presence unfortunately.

I don't think anyone would disagree. It's really prevalent in a smaller room or when sitting much further away just how bad it can muck up the sound. Honestly, I'd take it a step further and treat all the way through the transition zone. The problem comes in when people just start throwing panels and trap everywhere and then they realize their top end is completely gone.

 

[neRok]

I just stumbled upon this guy today, although he's been around for a long time. This is his most recent vid. I know that he's selling a product, but he appears to understand the math and physics of room acoustics and how his products work within the numbers. I watched several of his vids in succession and seems sound and rational. I'm sure a lot of you guys are familiar with him, any thoughts? From my non tech perspective this doesn't seem like snake oil... unless it's buried in the science that is proposed I guess.

That activated charcoal looks an interesting product if it works as advertised, which sweetsounds post #16 suggests it does. Specifically with regards to the flat frequency response he shows below 500Hz, if the product works as advertised, than that could be the response. It sure is expensive and heavy though.

On the acoustics side of things, if your speakers/sub have a known flat response from their direct sound, any measured problems when used in your room are reflection related. If you prevent the reflections, you are only left with the direct sound, and thus a flat response. You can see this in REW Room Sim. Put a 2.1 system in a normal sized room with low/no absoprtion on the walls (=0.1) and there will be peaks and dips. Crank that number up to max (=0.9) to kill the reflections, and the response will become very flat.

 

[multichannel_guy]

Acoustics Fields only asks for a mere $750 for something like this. (And I'd trust BBC's measurements much more than Acoustic Fields'.)
View attachment 296770

The design of a modular sound absorber for very low frequencies

Report 1992-10

www.bbc.co.uk

He sells all his formulas for 30 bucks sale price or so for the DIYers. I DIYed his diffusion panels and it was an unbelievable upgrade to what i heard in my room.
Hence, it doesn't look like he's trying to steal from your precious purses.

If you're too lazy or lack the talent to do basic wood working or construction on your own, pay up and quit complaining.

 

[NTK]

He sells all his formulas for 30 bucks sale price or so for the DIYers. I DIYed his diffusion panels and it was an unbelievable upgrade to what i heard in my room.
Hence, it doesn't look like he's trying to steal from your precious purses.

If you're too lazy or lack the talent to do basic wood working or construction on your own, pay up and quit complaining.

Given the "information" he put out is generally garbage, I'd rather spend my money on Acoustic Absorbers and Diffusers 3rd Edition by Trevor Cox and Peter D’Antonio.

But your money is your money, spend it whichever way you wish.

 

[René - Acculution.com]

Given the "information" he put out is generally garbage, I'd rather spend my money on Acoustic Absorbers and Diffusers 3rd Edition by Trevor Cox and Peter D’Antonio.

But your money is your money, spend it whichever way you wish.

"Pressure vs Energy". "The wave does not fit in the room". "Clutter is phase." Don't see problem ;-)