An acoustics professor, a food critic and an audio producer are staring at their devices in a Peruvian restaurant in downtown Washington. “What are you getting?” “Let’s see … it’s fluctuating.” “I ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Figure 1If we decide to use a reference power of one watt, we can get a handful of useful ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

From the Richter scale to sound pressure, many modern units utilize the logarithmic “base 10” system. But to many engineers, the decibel (dB) remains one of the trickiest concepts of test and ...

In Decibels: Use with caution, I reviewed the concept of decibels as a ratio of two powers (and sometimes voltages). Decibels are also used to indicate absolute power and voltage levels by specifying ...

Noisy environments can significantly and negatively effect our bodies, and are a great villain to concentration, learning, and productivity in classrooms and offices. Headaches are one momentary ...

Decibels are commonly used in electronic systems that include RF, audio, and more recently, signal integrity. While many engineers already think in decibels, if you mostly work in the time domain, you ...

Bass and overall music levels from Glenwood South businesses in downtown Raleigh topped 100 decibels six times over one weekend, a city consultant found. That's as loud as a jackhammer or car horn and ...