Thanks for your clarifications, my perception can come from my seat, and i should decouple my whole body because i can feel the vibrations of objects if there is enough energy to trigger my body sensors and and they can be unlocalizable by ear. moreover every object can emmit some localisable noises far away from, me blurring even more my perception.
It remembers me the first generation of oleopneumatic damping systems on the citroen cars that have made a large part of early users really sick, the four wheel fast oscillations where converted into large ones by the dampers resulting in large movements high and down, like a boat on a rough sea 🤢
Using multple sources in a closed box with a lot of damping can have the same effect ?
It remembers me the first generation of oleopneumatic damping systems on the citroen cars that have made a large part of early users really sick, the four wheel fast oscillations where converted into large ones by the dampers resulting in large movements high and down, like a boat on a rough sea 🤢
Using multple sources in a closed box with a lot of damping can have the same effect ?
The same effect as in a car or a boat? I don't see any connection between the perception of LFs in a car/boat and the acoustics of a small room. Cars have all sorts of odd resonances that rooms won't have (or shouldn't have!) And boats are boats.
You are right i'm digressing a few, i'm pehaps not enough competent in acoustics to implement the multisub configuration. I rememeber a small dressing closet resonnance that was impossible to get rid off, a partially open window/door (4 doors in the room) changed significantly the measurements or if my bed was not exactly at the same place because i've hitted it with a leg by inadvertence... changed significantly the measurements.
I should perhaps une a specific DSP configuration for each scenario with an array of sensors, motorized wheels on my subs that follow automatically in real time the adequate DSP settings, move automatically the loudspeakers cabinets in the room each time i shoot my bed of open a door ?
I've stopped to energetize too much the room air volume and started use the smallest subwoofers avaliable with a low enough FR, a large part of the problems are gone and the others people have stopped to complain in the others rooms.
I should perhaps une a specific DSP configuration for each scenario with an array of sensors, motorized wheels on my subs that follow automatically in real time the adequate DSP settings, move automatically the loudspeakers cabinets in the room each time i shoot my bed of open a door ?
I've stopped to energetize too much the room air volume and started use the smallest subwoofers avaliable with a low enough FR, a large part of the problems are gone and the others people have stopped to complain in the others rooms.
You don't have to be an acoustics professor to place some subwoofers across a room and experiment with placement and settings. With 3 or 4 small subs you will be well served. With more even bass you will also disturb the neighbours less.
Even two can be worthwhile. You can measure using the sweeping technique and be prepared to try a few different locations.
In a small room ?
To be simple as possible, when you put your headphones far enough from your ears there is no bass, the closer the headphones are from your ears the deeper they goes, in a small room a pair of small subwofer cures everything but they will not be audible in the entire room... in a small room... you can't move.
Some people are using 18" loudspeakers in their sedan car... it is not for me.
To be simple as possible, when you put your headphones far enough from your ears there is no bass, the closer the headphones are from your ears the deeper they goes, in a small room a pair of small subwofer cures everything but they will not be audible in the entire room... in a small room... you can't move.
Some people are using 18" loudspeakers in their sedan car... it is not for me.
Headphones have nothing to do with speakers. If you download the free measurement software REW, there is also a room simulation option you can use to get an idea how one or multiple subs behave in your room, just play with different scenarios, great fun too.
Agreed, adding a sub will improve the situation, and adding a third (all well placed and level adjusted) will yield an improvement again. Now DSP control them individually and you have nirvana.
Classic. The biggest driver I have ever put into a vehicle was an 8 inch. I've been doing this since the 80's man.
Really !
You think that you've undestood the "method" so you think that i've dont understood the "method" ?
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Car audio is one of greatest source of audio-harasement, someone come to your home and agress you with high pressure booming tones !
Sorry, but it was also a complaint of some people in the house during my tests, i've finally decided to deplace my measurement microphone into the adjacents rooms to measure the "sound pollution" and i think that this problem should be invertigated a little bit more.
I'm guilty with isobaric 8 x 12 BP4 in the trunk😛
And, I'm working on a 2 x 18 BP4 for my son's car😏