I think the differences are mainly in the lower frequencies. For my walls, the frequency response of the reflection seems to be ruler flat above 1KHz, below that it's very difficult to measure because of reflections, room modes etc. When doing the tap test I think you are really interested in the lower frequencies, because above 1KHz the material doesn't seem to absorb enough sound to have a significant effect on response.
Basically I'm saying that if you made a silly test setup to listen to the reflection of either a wall board or a plywood board of the same geometry, you might not be able to tell the difference because they are much more similar than people realize. Although in an enclosed space, the differences compact with each reflection which probably magnifies the tonal quality of different materials.
Basically I'm saying that if you made a silly test setup to listen to the reflection of either a wall board or a plywood board of the same geometry, you might not be able to tell the difference because they are much more similar than people realize. Although in an enclosed space, the differences compact with each reflection which probably magnifies the tonal quality of different materials.
Yes, solid walls will reflect more equally, hence they are more likely to have larger issues with room modes and sound boomy. The flex in a dry lined wall and the space behind can be advantageous
Due to variations and uncertainties measurement results aren´t usually "the same" .
Let´s assume for simplicity that your premise is correct for all aspects, it nevertheless does not give the answer what treatment to choose without reverting to human experience/evaluation.
Gosh!
I think i´ve mentioned that before, but afair you didn´t like the results of those attempts on "brain measuring" as they contradicted your beliefs.....
I don't know. My general impression (long long listening times based, on various locations) is that in the big studios with a lot of wood, the original sound 'on the tape' tend to be warmer than in the same kind of studios using more concrete or the same.
As i tend to close my eyes, when I'm in a mixing process ;-), as, most of the time, the studio itself is in total or partial obscurity, as we all mix often in totally different rooms than the recording studio and concentrate so much on what we hear, I don't think it is only a psychological effect of visual.
I wait for the expertise of Hhoyt or other acousticians if any here) to explain or correct this feeling.
Hi T!
In the case of control rooms, once the various surfaces are in place to give the desired characteristics, the design is then fixed.
For tracking rooms the different surfaces (reflective/diffusive/absorptive) are installed in such a way that they can be moved to give different characteristics for different types of music being recorded. Many musicians especially those who play acoustic music greatly prefer the sound of a live space's natural reverberation as opposed to that added digitally during mixdown.
Cheers!
Howie
As you pointed out in a previous post, the resonant characteristics of wood panels will indeed be part of the sonic signature of a room. Wood panels generally have a fairly low Q and diffuse resonance modes.
But let's be honest here: wood has a strong visual impact on our perception of a space. 2700° K lighting on warmly-finished wood panels engenders a different feeling than will a 5000°K lit white-painted concrete room like a jail cell. As I have insisted here and professionally, our vision strongly affects our sonic perception. There is no way to separate them. We can talk around the point as if humans are capable of being perfect, unbiased, imperturbable analysis machines but we are not...
Cheers,
Howie
Human perception doesn't vary as much and not as uncertain as present day sound measuring tools? Wow, who knew!
The choice comes from one's head. After all, this is about audio so listening would be included. Who said otherwise? Our hearing can't outperform the present day sound measuring tools in capturing changes in sound and that gap will only get wider as the electronics technology advances.
What are the results and what's my belief?
Yes, there is.
Some forum members would disagree and there is a reason for it.
LOLOL Thanks for verifying my point: Blinding yourself is indeed changing your visual input!
Cheers,
Howie
Some of the best musicians are/were blind, some even deaf Deaf musicians learn to thrive on good vibrations - Telegraph
Clap your hands in a bathroom thats completly tiled, then do the same in a sauna thats all wood. Besides the obvious increase in level, the tone of the reverb is very different, and not just below 1khz.
This shows how different material has different freq. responses for reflections.
Absorption coefficients building materials finishes RT60 alpha coefficient acoustic absorbing absorbtion floor seating wall ceiling miscellaneous materials - sengpielaudio Sengpiel Berlin
Absorption coefficients building materials finishes RT60 alpha coefficient acoustic absorbing absorbtion floor seating wall ceiling miscellaneous materials - sengpielaudio Sengpiel Berlin
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