This is called a binaural beat. Here’s an example: Let’s say you’re listening to a sound in your left ear that’s at a frequency of 132 Hertz (Hz). And in your right ear, you’re listening ...

Binaural beats, when tuned to an adequate frequency, are theorized to encourage the brain to gradually transition from a more alert, higher-frequency state into a slower, more relaxed one. Some ...

A whistle pendant called the LoveTuner claims to allow the wearer to blow a tone at 528 hertz, known in New Age parlance as the frequency of love. (The necklace, which sounds like a one-note ...

Also branded as "HD Voice" by Polycom, the narrowband 300-3400 Hz frequency range of the traditional "toll quality" telephone call was broadened to 50-7000 Hz for wideband audio. Desk phones ...

The process enabling this shifting of signal frequencies is called frequency mixing, and it is essential for communication ...

For water waves and sound waves the unit hertz is usually good enough but radio and TV waves have such a high frequency that the kilohertz (\(kHz\)) or even the megahertz (\(MHz\)) are better units.

causing an audible tone at that frequency. This is shown in the image below. Because the applied 120V AC power is properly tuned to 60 Hz, the 60 Hz center reed is shown vibrating more than the others ...

This relationship is shown by the equation \(f= \frac {1}{T}\) Frequency is measured in Hertz, Hz. Period is measured using the 'timebase' (seconds per division) from the oscilloscope controls.