Originally Posted by Ethan Winer
Nice selective quoting of your expert. This is the problem when one is not an expert himself - all he can do is quote others, often getting it wrong.
Selective quoting? Have you ever talked to Dr. Toole? If you have, you would know that I am expressing his point of view precisely. Happy to quote tons more.
The goal of all listening rooms is a relatively uniform reverb decay time versus frequency.
There is no such goal for small home listening rooms. In the context of figuring out if the room is too live or too dead, what we care about is the reverb time around 500 Hz. The rest is not of importance since small rooms are not reverbrant spaces.
Most of the data on Floyd's graphs cover a range narrower than 200 Hz to 5 KHz. Do you understand why his graphs are limited to that range?
I do. It was right on the graph. He is trying to contrast the room's measurement against he survey of large number of home living rooms by Bradley which also covered the same range.
Here's another quote from Floyd's book: "The corners of the room are available for low-frequency absorbers."
It seems Floyd understands that bass traps are necessary and why.
Did you read what I wrote? I said: "It won't help with low frequencies below transition frequency of 200 to 400 Hz."
So yes, furniture is of no help in taming low frequencies. And this is the full quote:"The corners of the room are available for low-frequency absorbers.
These are preferably of the membrane/diaphragmatic/panel type, because
they are located in high-pressure regions of the low-frequency standingwave
So no, he doesn't say all bass traps are good. Here is what he says about bass traps:"Sometimes these (modular bass absorbers) are called "bass traps." The problem with the name is that some of them don't "trap" much of anything excpet cash from unwiiting purchasers."
That doesn't seem to be the endorsement you just attributed to him.
Now look at this Before / After graph showing a properly treated small room, and you'll see that the decay times are far more uniform versus frequency than a room containing only "furniture." Look especially at how low in frequency the uniformity extends to:
What I don't understand (I honestly don't) is why you have such strong opinions, and feel the need to challenge me at every opportunity. Do you really believe that acoustic treatment is not useful or necessary?
I was not even talking to you Ethan. This thread is about the effect of furniture in a room vs it being empty. It asked nothing about buying bass traps. Your answer was this prior to linking to your web site: "This will answer a lot of your questions:"
beaveav correctly pointed out that you seemed to just be advertising your wares instead of answering OP. Someone disagreed and I chimed in to give my opinion and confirmed that your web site does nothing to answer OP's question.