Hearing Aid and Audio Innovator Edgar M. Villchur Dies at 94
Hearing aid and audio innovator Edgar M. Villchur died on October 17, 2011, at his Woodstock, NY home. He was 94. Villchur is known for developing the acoustic suspension loudspeaker in 1954, which revolutionized the field of high-fidelity audio. He is also well known for developing hearing aids with multichannel compression that utilized wide dynamic range compression (WDRC).
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