Second UPDATE about my 3 Helmholtz tubes and about my Helmholtz-Fibonacci room tuner....
I made some experiment with a few Helmholtz pipes and tubes... I add one directly in front of my speakers 3/4 inches diameter, 3feet 3 inches high....The bass in the room suddenly bloom more and i never enjoy so good bass ever... The room first node is around 43 hertz, my speakers dont go under 45 hertz, and i enjoy now more of the very clear 45 hertz and the upper bass frequencies...
Some miracle happen when i decided to glue a straw on the plastic sheet closing the mouth if this tube centering this straw on the toothpick hole made on it....WOW! It was like 2 helmholtz tubes glued together , the straw is on top of the pipe....
Better imaging and better clarity....
ONE STRAW can change completely the sound of a room.... Think about that.....
WHY?
Because the air in the room is a pressurized heteregeneous complex distribution of springs cells acting on the waves and the Helmholtz tubes are pressurized engines that are able to make the room an ACTIVE participant in the sound perception and no more a boucing sets of passive walls... The S.G. also and the ionizer modify the array of air molecules that act like springs for the waves.... Remember that the waves cross a small room near hundred times each second, in my case 80 times each second....Then the air is like strings of violin under compression...
Acousticians who sells acoustic materials sells you half of the solution only....The passive materials treatment...
The other half are less easy to install and organize like passive acoustic materials can be but they are what make the room an ACTIVATED part of the sound perception synchronized with the speakers : my grid of S.G. and especially the Helmholtz pipes and tubes grid with the ionizers....
The room is now active like the speakers are for the creation of the sound experience....ANY small room on par with the speakers are the SOURCE of the sound experience....
Presenting the room like passive walls to be treated is NOT acoustic science it is marketing of easy to install ready made solutions for the acoustic company....
It is my conclusion after this powerful S.Q. increase with ONE straw.....
For sure the mathematical formula to calculate the set of frequencies affected by a particular H. bottle or tube use the neck length and diameter in a crucial way... But this formula was no more an abstraction for me but suddenly a powerful audible modified sound in my experiment, a living experience.....
Like usual the improved S.Q. is sensible and audible in my 2 listening positions, nearfield and the more regular one.....
My best to you all....
I made some experiment with a few Helmholtz pipes and tubes... I add one directly in front of my speakers 3/4 inches diameter, 3feet 3 inches high....The bass in the room suddenly bloom more and i never enjoy so good bass ever... The room first node is around 43 hertz, my speakers dont go under 45 hertz, and i enjoy now more of the very clear 45 hertz and the upper bass frequencies...
Some miracle happen when i decided to glue a straw on the plastic sheet closing the mouth if this tube centering this straw on the toothpick hole made on it....WOW! It was like 2 helmholtz tubes glued together , the straw is on top of the pipe....
Better imaging and better clarity....
ONE STRAW can change completely the sound of a room.... Think about that.....
WHY?
Because the air in the room is a pressurized heteregeneous complex distribution of springs cells acting on the waves and the Helmholtz tubes are pressurized engines that are able to make the room an ACTIVE participant in the sound perception and no more a boucing sets of passive walls... The S.G. also and the ionizer modify the array of air molecules that act like springs for the waves.... Remember that the waves cross a small room near hundred times each second, in my case 80 times each second....Then the air is like strings of violin under compression...
Acousticians who sells acoustic materials sells you half of the solution only....The passive materials treatment...
The other half are less easy to install and organize like passive acoustic materials can be but they are what make the room an ACTIVATED part of the sound perception synchronized with the speakers : my grid of S.G. and especially the Helmholtz pipes and tubes grid with the ionizers....
The room is now active like the speakers are for the creation of the sound experience....ANY small room on par with the speakers are the SOURCE of the sound experience....
Presenting the room like passive walls to be treated is NOT acoustic science it is marketing of easy to install ready made solutions for the acoustic company....
It is my conclusion after this powerful S.Q. increase with ONE straw.....
For sure the mathematical formula to calculate the set of frequencies affected by a particular H. bottle or tube use the neck length and diameter in a crucial way... But this formula was no more an abstraction for me but suddenly a powerful audible modified sound in my experiment, a living experience.....
Like usual the improved S.Q. is sensible and audible in my 2 listening positions, nearfield and the more regular one.....
My best to you all....