Listen...chair

Natural fibers generally absorb sound, they don't reflect it. That's why when you compare the awful echo you hear in an empty room vs. a room full of heavy upholestry the latter sounds deader...the furniture helps absorb the sound and break up waves. 
Try Ikea their chairs are surprisingly well designed and affordable. If you are willing to spend big bucks Relax The Back has amazing chairs for amazing prices. Cheers,
Spencer

Where did I suggest leather? Cheers,
Spencer

Ekornes Stressless, yes those are the ones I see at Relax The Back. They are so comfortable & look so well made...maybe someday. Cheers,
Spencer

If you buy one of those Teleportation tweaks with the phone call you can fix the sound of the Poang chair, but you must be sitting in the chair when you answer the phone.

@jetter Nice score, well played, sir! Cheers,
Spencer