He invented the "Les Paulverizer" device which permitted a performer to echo,or repeat, his or her music.

VOA: special.2009.09.27

This echo effect can be heard on the recording of this huge hit for the Supremes in nineteen sixty-four, "Where Did Our Love Go?"

VOA: special.2009.05.11

This I whispered,and an echo murmured back the word, "Lenore!"Merely this,and nothing more."

VOA: special.2009.02.02

This I whispered, and an echo murmured back the word,"Lenore!"

VOA: special.2010.10.31

As the president continued his cross-country appeals on health care reform, partisan disagreements continued to echo on Capitol Hill.

VOA: standard.2010.03.10

"It was pretty much of a shock when I got here." "I mean,if you're going to talk to some of your friends of some of the stuff you saw and you can't describe the smells, the feeling of the heat on your body and the sweat running down your back, the smell of the pus that hits your nose of unwashed bodies in a closed room, the circulation, the smell of your own panic when you're not sure what to do" Other doctors in the film echo Dr.Krueger's sentiments.

VOA: standard.2010.06.29