A graph of a microphone’s relative output level for sound sources originating at various points on a 360 degrees circumference drawn around the transducer.



"You recently transferred several reel-to-reel tapes for me to CD. I didn't request your restoration service, as the tapes were professional quality and I thought they'd sound pretty good just as they were. Well, they sound wonderful on CD -- truly better than I expected. You placed them in exactly the order that I requested. You took care in ..."