One type is sound-absorbing materials which are placed strategically within a listening room to reduce the amplitude of early reflections, and to deal with resonance modes.
Plasmon induced transparency - an analog of EIT - provides another approach based on the destructive interference between different resonance modes.
The nodes here on Jevlen have to be set to a resonance mode that enables them to interact with the other end.
The higher resonance modes are spaced at approximately 6.5 Hz intervals, a characteristic attributed to the atmosphere's spherical geometry.
"Hans, what are these references to 'resonance modes' here?"
There are chaotic resonance modes turning up which we missed in the simulations.
Sound-absorbing materials may be placed strategically within a listening room to reduce the amplitude of early reflections, and to deal with resonance modes.
Whenever the big machine triggers another "resonance" mode, I/we pick up hints of something that seems both other and familiar.
Furthermore, there are more complex resonance modes involving three, four, five and even all six boundary surfaces combining to create standing waves.
This frequency, and higher resonance modes of 14, 20, 26 and 32 Hz appear as peaks in the ELF spectrum and are called Schumann resonance.