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Human voice. The spectrogram of the human voice reveals its rich harmonic content. The human voice consists of sound made by a human being using the vocal tract, including talking, singing, laughing, crying, screaming, shouting, humming or yelling. The human voice frequency is specifically a part of human sound production in which the vocal ...
Definition. Sound is defined as " (a) Oscillation in pressure, stress, particle displacement, particle velocity, etc., propagated in a medium with internal forces (e.g., elastic or viscous), or the superposition of such propagated oscillation. (b) Auditory sensation evoked by the oscillation described in (a)." [2]
Korotkoff sounds. Korotkoff sounds are the sounds that medical personnel listen for when they are taking blood pressure using a non-invasive procedure. They are named after Nikolai Korotkov, a Russian physician who discovered them in 1905, [1] when he was working at the Imperial Medical Academy in St. Petersburg, the Russian Empire.
The inset shows the electronic simulation. Notably, such electronic systems require more than one speaker. Time difference in a stereophonic recording of a car going past. Stereophonic sound, or more commonly stereo, is a method of sound reproduction that recreates a multi-directional, 3-dimensional audible perspective.
The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At 20 °C (68 °F), the speed of sound in air is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn ), or 1 km in 2.91 s or one mile in 4.69 s. It depends strongly on temperature as well as the medium through which a ...
Bass. v. t. e. A voice type is a group of voices with similar vocal ranges, capable of singing in a similar tessitura, and with similar vocal transition points ( passaggi ). [1] Voice classification is most strongly associated with European classical music, though it, and the terms it utilizes, are used in other styles of music as well.
The International Organization for Standardization (ISO) standardized these definitions in 2014. ( ISO 12913-1:2014 ) A soundscape is a sound or combination of sounds that forms or arises from an immersive environment. The study of soundscape is the subject of acoustic ecology or soundscape ecology. The idea of soundscape refers to both the ...
