Ray Dolby: He Made Everything Sound Better

In the 1970s, “Dolby” was that button on your cassette deck that you pressed to magically eliminate static hiss that could easily mar the beauty of, say, Jimmy Page’s guitar solos on Led Zeppelin’s Houses of the Holy. Of course, the noise-reduction technology pioneered by inventor Ray Dolby, who died on Sept. 12 at age 80 in San Francisco, did much more than that. Sound-improving innovations developed by his Dolby Labs have found their way into an estimated 7.4 billion …

Amar Bose: He Made Music Sound Better

Whether you’re a hard-core audiophile who wants the principal timpanist from the New York Philharmonic to sound as if he’s in your living room, or merely someone who likes to crank up the volume on the stereo and play air guitar to Cream’s “Sunshine of Your Love,” Bose is a brand you surely recognize. The 49-year-old Massachusetts-based company is one of the most illustrious names in audio equipment, making everything from noise-cancelling headphones to the loudspeaker system in the Vatican’s …