Sperm whales search the dark ocean with extremely short, focused pulses of sound. Measurements place the apparent source ...

Movie theater soundtracks may feel more immersive when they’re loud, but some Philadelphia-area viewers say theaters have ...

Megan Gerhart, Au.D. received her doctorate of audiology from the University of Florida. She has experience helping pediatrics to geriatrics both in private practice and medical models of care. She ...

Kanwar Yatra loudspeakers have pushed noise levels up to 110 decibels in Delhi. Here is what Indian law allows and why ...

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 ...

Editor's Note: We have strived to maintain accessibility in our Bring Science Home activities by limiting the required technology. We recognize technology is now more widely available than it was when ...

One of the most difficult-to-understand terms for newcomers (and even experienced enthusiasts) in audio and sound reproduction is the decibel, partly because it’s a measure of relative intensity or ...

For those looking to gain a deeper understanding of how audio works, whether to make better-informed decisions or simply for the sake of curiosity, it's useful to lay down some ground rules that ...

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 ...

Sperm whales are the loudest animals, but many believe blue whales are louder because of call duration The loudest human yell was 129 decibels. The loudest dog bark was 113 decibels. At 70 decibels, ...