R.I.P.: Ray Dolby

Before an audio revolution in the mid-1960s, just about all music, dialogue and other sounds played on tape recordings had one thing in common: hiss.

The bothersome, underlying noise seemed especially unavoidable during quiet passages on the once-ubiquitous cassette tapes.

But then came an engineering breakthrough that nearly wiped out the hiss, and made the inventor's name — Dolby — world-famous.

Ray Dolby, 80, died Thursday September 12, 2013 at his home in San Francisco. MORE HERE

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