Sounds that are lower pitched are less studied than other types. Some say it’s a health hazard. Others have doubts. By Lourdes Medrano/Undark Published Apr 17, 2024 8:00 AM EDT This article was ...

A metamaterial elongates the propagation path of sound waves, allowing low-frequency noise control without the need for bulky materials.

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...

The proximity effect refers to the way that the low-end frequency on a microphone increases the closer it gets to the source of the sound—the closer to the mic, the greater the boost in the bass. As ...

The circuit was created to produce an oscillator operating at low frequency for use in the production of electronic music and experimenting and testing tone controls. Oscillator – an electronic ...

The circuit was designed to create a two-way loudspeaker with the use of a tweeter for producing high frequency or pitch signals and a woofer for producing low frequency or bass signals. Different ...