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Quit smoking through sound 100% guarantee

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atstone's reference to the perceptual fusion of harmonically related tones were directly related to the principles examined by Wells. However, both their observations were ignored and remained uncited by contemporaraneous and subsequent German researchers of the following decades. Venturi's experiments were repeated and confirmed by Lord Rayleigh (1842–1919), almost seventy-five years later.[21] Other investigators of the late eighteenth and early nineteenth centuries, who were contemporaries of Lord Rayleigh, also investigated the significance of binaural hearing. These included Louis Trenchard More (1870-1944), a professor of physics, and Harry Shipley Fry (1878-1949), a lecturer in chemistry, both at the University of Cincinnati; H. A. Wilson and Charles Samuel Myers, both professors of science at King's College London; and Alfred M. Mayer (1836 - 1897), an American physicist, each of whom conducted experimental investigations with intent to discover the means by which human subjects ascertain the location, origin, and direction of sound, believing this to be in some way dependent on dichotic hearing, that is listening to sound through both ears.[22][23][24][25] Understanding of how the difference in sound signal between two ears contributes to auditory processing in such a way as to enable the location and direction of sound to be determined was considerably advanced after the invention of the differential stethophone by Somerville Scott Alison in 1859, who coined the term 'binaural'. Alison based his stethophone on the stethoscope, a previous invention of René Théophile Hyacinthe Laennec (1781–1826).[26] Unlike the stethoscope, which had only a single sound-source piece placed upon the chest, Alison's stethophone had two separate ones, allowing the user to hear and compare sounds derived from two discrete locations. This allowed a physician to identify the source of a sound through the process of binaural hearing. Subsequently, Alison referred to his invention as a 'binaural stethoscope', describing it as: …an instrument consisting of two hearing-tubes, or trumpets, or stethoscopes, provided with collecting-cups and ear-knobs, one for each ear respectively. The two tubes are, for convenience, mechanically combined, but may be said to be acoustically separate, as care is taken that the sound, once admitted into one tube, is not communicated to the other.[27][28] Neurophysiology[edit]

atstone's reference to the perceptual fusion of harmonically related tones were directly related to the principles examined by Wells. However, both their observations were ignored and remained uncited by contemporaraneous and subsequent German resear
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