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Live Sound Lesson 5 – The Decibel, Sound Level, and Related Items

Did you think that by being a live sound engineer, you could completely elude ever having to use math? If so, you were wrong. The decibel unit measures sound level the same way miles or meters measure distance. But there are also variations of this audio measurement unit when related to sound pressure level, volts, watts, ohms and so on. In this chapter, you will begin to understand why “engineer” is in the job title.