The properties of a room that affect the quality of a sound source in the room. (i.e., reverberation, resonance modes, etc.)
"I just wanted you to know the CD arrived safe and sound yesterday. This recording was made at a local radio station in Greenwood, SC, in the early 1950's. My father sang with a gospel quartet that had its own radio show at the time. This is the only known recording we have of my dad singing and I am thrill to have been able to preserve it for ..."