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The terms sounding range, written range, designated range, duration range and dynamic range have specific meanings. The sounding range [ 3 ] refers to the pitches produced by an instrument, while the written range [ 3 ] refers to the compass (span) of notes written in the sheet music, where the part is sometimes transposed for convenience.
The criteria for classifying musical instruments vary depending on the point of view, time, and place. The many various approaches examine aspects such as the physical properties of the instrument (shape, construction, material composition, physical state, etc.), the manner in which the instrument is played (plucked, bowed, etc.), the means by which the instrument produces sound, the quality ...
North American frequency assignments differ from those used in Europe and other countries. Typically, the lower half of the Ku band contains communications satellites and free-to-air or ethnic-language programming, using linearly-polarised LNBs; the upper half of the Ku band contains circular-polarised direct broadcast satellite signals.
The following tables show the frequencies assigned to analog broadcast television channels in various regions of the world, along with the ITU letter designator for the system used. The frequencies shown are for the analog video and audio carriers. The channel itself occupies several megahertz of bandwidth. For example, North American channel 1 ...
The harmonic series (also overtone series) is the sequence of harmonics, musical tones, or pure tones whose frequency is an integer multiple of a fundamental frequency. Pitched musical instruments are often based on an acoustic resonator such as a string or a column of air, which oscillates at numerous modes simultaneously.
An assortment of musical instruments in an Istanbul music store. This is a list of musical instruments , including percussion, wind, stringed, and electronic instruments. Percussion instruments (idiophones and membranophones)
Musical instruments produce different ranges of notes within the hearing range. The electromagnetic spectrum can be divided into many different ranges such as visible light , infrared or ultraviolet radiation, radio waves, X-rays and so on, and each of these ranges can in turn be divided into smaller ranges.
The Pan-American television frequencies are different for terrestrial and cable television systems. Terrestrial television channels are divided into two bands: the VHF band which comprises channels 2 through 13 and occupies frequencies between 54 and 216 MHz, and the UHF band, which comprises channels 14 through 36 and occupies frequencies between 470 and 608 MHz.