I believe this site answers it all very thoroughly:
Someone actually went into the trouble of put ting a duck on an anechoic chamber to answer this great mystery of nature. :-)
A Book For All Reasons Bernard Cole1 Comment Robert Oshana's recent book "Software Engineering for Embedded Systems (Newnes/Elsevier)," written and edited with Mark Kraeling, is a 'book for all reasons.' At almost 1,200 pages, it ...