Pressurization is what you felt when you heard the IRS Vs at HP's in the smaller room
Your pants legs would literally flap in the breeze.
Next up: What is room pressurization?
- Thread starter Phelonious Ponk
- Start date
Pressurization is what you felt when you heard the IRS Vs at HP's in the smaller room
Your pants legs would literally flap in the breeze.
It does depend on the room. In my other house I had a Velodyne 18 and it rattled every plate in the kitchen. In my condo I have the same Vel and another very large sub. No rattles but when the source commands, I get a concussion that seems like a bomb going off. Plus there is a energy on most good recordings that just surrounds me. I agree that RTR's can and do scare me if I have it turned up,like living stereo's Tosca with Price & Gobbi,that was a TP moment. Digital is no sloutch either. The energy is almost the best part in some recordings.
Last edited:
That's a good question. In a Car you certainly get it but at home I wonder? My listening room is in my basement and it's a leaky mess from a sealed room perspective. I get the pant's flapping and the "shudder" for lack of a better word but wonder if it's just the volume of air displaced that giving the feeling of preasurization. We are also listening to sinewaves of sorts so for every peak there is also a negative cycle. If they were equal the net sum would be zero.
So what is actually going on?? Is the low frequency assualt on our ears and body that makes us feel like the room is preasurized or is there an actual presurization?? According to the posted reference my room dimensions should not be giving that much gain 23 x 13 x 8.
Rob
So what is actually going on?? Is the low frequency assualt on our ears and body that makes us feel like the room is preasurized or is there an actual presurization?? According to the posted reference my room dimensions should not be giving that much gain 23 x 13 x 8.
Rob
Steve Williams
Site Founder, Site Co-Owner, Administrator
Tim
discussion is great. As I said it elicits a common understanding which, although we may not agree, is a starting point
discussion is great. As I said it elicits a common understanding which, although we may not agree, is a starting point
Or an understanding that our understanding is not common.
Which is, in itself, an understanding. Understood? Tim
That's a good question. In a Car you certainly get it but at home I wonder? My listening room is in my basement and it's a leaky mess from a sealed room perspective. I get the pant's flapping and the "shudder" for lack of a better word but wonder if it's just the volume of air displaced that giving the feeling of preasurization. We are also listening to sinewaves of sorts so for every peak there is also a negative cycle. If they were equal the net sum would be zero.
So what is actually going on?? Is the low frequency assualt on our ears and body that makes us feel like the room is preasurized or is there an actual presurization?? According to the posted reference my room dimensions should not be giving that much gain 23 x 13 x 8.
Rob
We will have to agree on a definition and stick to it to move on and discuss the phenomenon. If it is the sensation of sound on our ears, then it happens whenever the SPL is high. It can be painful if it the frequency of the sound is in the region our our ears max sensitivity .. the midband between say 600 Hz and 3 Khz ... We feel this as loud, very loud and a pressure to the ears. I wouldn't call this room pressurization.
My defintion fo Room Pressurization is that of feeling a build up of pressure in the room as felt by the ear and body... That is done in the bass nowhere else. As noted very judiciously by Soundproof, air doesn't move from the speakers to our ears but the pressure gradient does move throughout the room. It can be felt with aproperly sealed room. A large room may not convey that impression even under good bass response. Certain woofers do move alot of air , The Genesis 1 did move a lot of air more so than any system I have heard and in a room with the proper seal, The Gen 1 audition is a singular experience.. You feel you clothes moving and the air shudder... The Pipedreams are not too shabby by the way on this phenomenon I was about to forget them ... Especially when you have 4 Depth Charges subs (Are these bandpass?).. I would suppose the Scaenas to be good in this regard as well ...
It seems that some woofer loading are better at coupling with the air in a room to produce that effect. Bandpass subwoofers in particular are known to make you feel the air being compressed in a room , more so than sealed which tend to be better than bass-reflex in this regard... I have never had a bandpass subwoofer so can only relate what I read.
As for people description on how they react to different media, it is something I would approach with a lot of care. if someone likes a given medium, it is certain that they approach it with a different mindset, thus subjective impression will change. That is good, that is the purpose of having a sound reproduction system, for its owners to enjoy, even it is by just looking at them. I would prefer however not to fall into describing this sensation as pressurization, especially when another medium tend to excel in the band of frequency where pressurization not figuratively but really, physically occurs.
As for my jib toward we, audiophiles having the tendency to change words meaning, if it looked like a put-down, I apologize, it wasn't meant as such. It remains that we, audiophiles, tend to use too loose a vocabulary, we have changed words meaning to a point where they mean, everything and nothing. When words start losing their meaning discussions become , vacuous and useless.This discussion, hopefully, will allow us to develop a common language so as to make of our experiences something useful to the other members.
@Robh3606
Later for a better answer on your very interesting questions wil fish for the references and if you care the math
Steve Williams
Site Founder, Site Co-Owner, Administrator
I picked this word, in part, because of what you've just referred to, Frantz. I've watched it grow in popularity. I've seen it used to describe things that, I'm pretty sure, are not creating any real "pressure." I know I don't have it. If I got a good sub, sealed my little room up tight and turned the volume up higher than I really want to listen, I might be able to get a taste, but I won't be going there, so I have no skin in this game, but it has become a common system compliment. I'd like to know what it means to people.
Tim
Tim
"That is done in the bass nowhere else." Frantz
Well I don't know, I have quite a few grand organ recordings and one in particular. There is a mid frequency blast that just envelops the entire room,awesome, I have never experienced anything like it. You're probably right and this is probably by definition something else.
Thinking further about it it could be another nebulous term..."bloom",but this does posses a definite energy about it.
Well I don't know, I have quite a few grand organ recordings and one in particular. There is a mid frequency blast that just envelops the entire room,awesome, I have never experienced anything like it. You're probably right and this is probably by definition something else.
Thinking further about it it could be another nebulous term..."bloom",but this does posses a definite energy about it.
Last edited:
Oh I have no real illusions about reaching consensus, Roger. If I can just get a handle one what it means when you speak audiophile as opposed to what it means went Frantz speaks audiophile, as opposed to....of course too many variations won't even help us in our small group. I'm hoping the variations will be somewhat limited.
Tim
Tim
The pressurization from the organ could still be caused by the bass content beneath the more-audible midrange.
Lee
Tim,
I just posted that because I found it funny! Keep throwing terms out there please. I talk only from my own experience and I'm stuck up here on the mountain.
...Or a room that is too small to cope with all that powerful content?
...At realistic volume levels of course.
Tim,
I just posted that because I found it funny! Keep throwing terms out there please. I talk only from my own experience and I'm stuck up here on the mountain.
There too, you can feel pressurized, Roger. :b
___________________________________
* You guys already know that low bass frequencies act differently at various altitudes right?
...As in level (dBs) and room pressurization.
Similar threads
 | Steve Williams Site Founder | Site Owner | Administrator |  | Ron Resnick Site Owner | Administrator |  | Julian (The Fixer) Website Build | Marketing Managersing |