The time it takes for echoes and reverberation to die away.
"OH MY GOD. You guys are my heroes. Never in my wildest dreams did I imagine you could make these Melanie tapes sound THIS good. I am deliriously happy and thrilled with the results and I am beyond pleased that I decided to send them to you for restoration. I cannot wait to give them to Melanie next month. I know she will be thrilled. You have ..."