Laughing....@jafant
Unclear to me me what you find humorous, nevertheless, in the case of my posts, the information I've provided herein is true.
How to "mount" acoustic foam ?
Per @slaw and @geoffkait , I removed the 4 x 24x48x2" acoustic foams I installed a few weeks ago. When first installed, there appeared to be an improvement in control of the music with better depth. However, after some further listening tests, I have to agree. While the sound is a little "wilder", it is freer. The music breathes, is louder, more dynamic. The foam basically killed the music. I have found the same effect with some mats. Damping can be deleterious. |
noromance Per @slaw and @geoffkait , I removed the 4 x 24x48x2" acoustic foams I installed a few weeks ago. When first installed, there appeared to be an improvement in control of the music with better depth. However, after some further listening tests, I have to agree. While the sound is a little "wilder", it is freer. The music breathes, is louder, more dynamic. The foam basically killed the music. I have found the same effect with some mats. Damping can be deleterious. >>>>>Thanks for posting your results. What I think happens is that the foam changes the nature of the acoustic wave traveling through it. Obviously the acoustic wave actually travels though the foam twice, once through the foam to the wall then back out again to the air. So any effect the foam has on the acoustic wave is doubled. As I intimated earlier ANY foam in the room has a similar deleterious effect on the sound, for example the IKEA Poang Chair that has foam seats and backing. Just when you thought it was safe to go back into the water. 🦈 Effective, non-interfering acoustic solutions such as Michael Green Echo Tunes and panels, Tube Traps, Skyline diffusers and others do not (rpt not) contain foam. |
What I think happens is that the foam changes the nature of the acoustic wave traveling through it. Obviously the acoustic wave actually travels though the foam twice, once through the foam to the wall then back out again to the air. So any effect the foam has on the acoustic wave is doubled. As I intimated earlier ANY foam in the room has a similar deleterious effect on the sound, for example the IKEA Poang Chair that has foam seats and backing. At least Geoff is "thinking" :) The one thing Geoff doesn’t mention, *even IF his post is true* is whether or not the "deleterious effect" is worse without (correctly placed and designed) acoustic foam! EDIT: Besides the fact that there are numerous manufacturers of acoustic foam, and customers who report improvement in sound when using foam, this article is rather succinct and informative as to its potential benefit(s). https://en.wikipedia.org/wiki/Acoustic_foam |
I used the term deleterious. I am not denying that the foam tamed certain aspects of the sound. It did. And extremely effectively. Bass was reduced by a significant factor while higher frequencies were "tamed". Whether foam sounds bad in itself, I do not know. All I do know is that it took the life out of the music. I tried reducing the amount of foam gradually and each reduction improved the dynamics, bass and loudness. This has been an interesting excercise. I do believe the space needs some treatment as it can be a little "live." However despite it being in a corner of the basement, there is a lot of free space for the sound to dissipate into so reflections etc. are not as bad as might be imagined from the photos. There is some "confusion" in the upper mids when played loudly and mid bass is a little plummy on some recordings. I will look into the options mentioned. Thanks. |