The music industry's controversial lawsuits against online song swappers appear to have forced U.S. computer users to severely curb their free music downloading habit, according to new research released Sunday.

The percentage of Americans who downloaded music from the Internet fell to 14 percent over the four weeks ended Dec. 14, from 29 percent in a 30-day sample conducted in March, April and May, according to a telephone survey of 1,358 Internet users conducted by the Pew Internet & American Life Project.

Read more: CNN.