Compressed audio files are the written word’s equivalent ... Expect to see a little Dolby NR–like Signal Doctor symbol in new cars within the next year. If you can’t wait, JBL, a Harman ...

Audio signal processing is at the heart of every song transmitted at a concert, every sound enhanced in a movie and every album stored in your music library. A new book, written by RIT Professor ...

The symbol in question is blue ... that frequency is the carrier frequency. The audio signal is mapped onto it by varying the amplitude (AM) or frequency (FM) and the receiver uses those ...