For sure you are right, my methods by ears, one set at times is not optimal without SPL meter...But it is an improvement anyway across the board...
And by the way I have all the rest of my life to play with a SPL meter to optimize these location... It is fun to play whatsoever, with or without SPL meter, and except for the half-deaf it is simple to place them and look for a location where the sound improve anyway...
It is like my design of Helmholtz resonator ,this homemade creation, without calculus ,created only with the help of the ears is not optimal either, but the results I had with only my ears, for designing and calculating the maths relation between aperture, volume, etc, is not optimal at all, but successful, because the improvement is evident for my ears...All are not physicist here or engineer...I want to keep all that simple and fun, and relatively efficient, and it is ok like that; if not, it will be too complicate for all normal people...All we are asking for is simple and fun experiments to improve...Mine are free, easy, fun and gives results...I will certainly use a SPL meter one day to improve my installation by the way... But it was not necessary to have one to begins playing... My best to you and to all...
And by the way I have all the rest of my life to play with a SPL meter to optimize these location... It is fun to play whatsoever, with or without SPL meter, and except for the half-deaf it is simple to place them and look for a location where the sound improve anyway...
It is like my design of Helmholtz resonator ,this homemade creation, without calculus ,created only with the help of the ears is not optimal either, but the results I had with only my ears, for designing and calculating the maths relation between aperture, volume, etc, is not optimal at all, but successful, because the improvement is evident for my ears...All are not physicist here or engineer...I want to keep all that simple and fun, and relatively efficient, and it is ok like that; if not, it will be too complicate for all normal people...All we are asking for is simple and fun experiments to improve...Mine are free, easy, fun and gives results...I will certainly use a SPL meter one day to improve my installation by the way... But it was not necessary to have one to begins playing... My best to you and to all...