For those with less-than-perfect singing voices, technology offers help. A number of computer programs can correct pitch to make just about anyone sound in tune -- even NPR's Renee Montagne, who lends her voice to show how the software works.
The technology has become quite prevalent in the music industry, finding its way into many of today's pop recordings -- and some classical ones, as well. NPR's David Kestenbaum reports.
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