An ANSWER....of sorts......

I am familiar with human even if they are now rarest than few years ago and i can translate it for you ... 😉

I need an AI or maybe one of those Star Trek "Universal Translators" to understand the dialects used in this thread...

Serendipity coupled to acoustics basic can make miracles!

I just walked as every morning, i stumble on an empty 6 foot cylinder made of hard -plastic abandonned in a field...

I entered in my dedicated acoustic corner ( near listening field with my modified small speakers).

I fix the tube with the proper wood closure at the end and put the open part vertically between my two speakers...

I need only one trial tuning ...

Very audible improvement at the right frequencies range resulting in a better listener envelopment and a better timbre ...Thanks Saint Helmholtz...

Pay attention walking and pray the right god....

Cost : peanuts....

Nothing is invisible in a room, especially the sound...

All is audible in a room, especially  through silence...