When two TONEs are sounded simultaneously, other tones can sometimes be heard, the FREQUENCY of one of which is the difference between the frequencies of the two tones being sounded. For example, if ...

The book I was reading had an explanation of how each key on a telephone sends a combination of two tones down the wire, and what’s more, it listed the seven audio frequencies needed for the ...

Sotavalta 1 discusses the estimation of the wing-stroke frequency of insects by their ... a certain number of vibrations proper to make any tone, he is able to tell how many strokes a fly makes ...

In order to produce a binaural beat, the two tones sounded in the ears must both have frequencies below 1,500 Hz with a difference of no greater than 40 Hz between them. The effects of the ...

The RESPONSE to frequencies over the entire AUDIO range has been charted, originally by Fletcher and Munson in 1933, with later revisions by other authors, as a set of curves showing the SOUND ...

The New Frequency Collection features cool iridescent tones of rose and periwinkle, inspired by the motion and flow of your days. With its organic patterns in ocean blues and soft sherbet ...

“The New Frequency Collection features cool iridescent tones of rose and periwinkle and two exclusives for a new year glow,” Stanley states on its website. “Organic patterns in ocean blues ...