Frequency is the number of occurrences of a repeating event per unit of time. It is referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency; the period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency. For example: if a newborn baby's heart beats at a frequency of 120 times a minute, its period—the time interval between beats—is half a second. Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals, radio waves, light. For cyclical processes, such as rotation, oscillations, or waves, frequency is defined as a number of cycles per unit time. In physics and engineering disciplines, such as optics and radio, frequency is denoted by a Latin letter f or by the Greek letter ν or ν; the relation between the frequency and the period T of a repeating event or oscillation is given by f = 1 T.
The SI derived unit of frequency is the hertz, named after the German physicist Heinrich Hertz. One hertz means. If a TV has a refresh rate of 1 hertz the TV's screen will change its picture once a second. A previous name for this unit was cycles per second; the SI unit for period is the second. A traditional unit of measure used with rotating mechanical devices is revolutions per minute, abbreviated r/min or rpm. 60 rpm equals one hertz. As a matter of convenience and slower waves, such as ocean surface waves, tend to be described by wave period rather than frequency. Short and fast waves, like audio and radio, are described by their frequency instead of period; these used conversions are listed below: Angular frequency denoted by the Greek letter ω, is defined as the rate of change of angular displacement, θ, or the rate of change of the phase of a sinusoidal waveform, or as the rate of change of the argument to the sine function: y = sin = sin = sin d θ d t = ω = 2 π f Angular frequency is measured in radians per second but, for discrete-time signals, can be expressed as radians per sampling interval, a dimensionless quantity.
Angular frequency is larger than regular frequency by a factor of 2π. Spatial frequency is analogous to temporal frequency, but the time axis is replaced by one or more spatial displacement axes. E.g.: y = sin = sin d θ d x = k Wavenumber, k, is the spatial frequency analogue of angular temporal frequency and is measured in radians per meter. In the case of more than one spatial dimension, wavenumber is a vector quantity. For periodic waves in nondispersive media, frequency has an inverse relationship to the wavelength, λ. In dispersive media, the frequency f of a sinusoidal wave is equal to the phase velocity v of the wave divided by the wavelength λ of the wave: f = v λ. In the special case of electromagnetic waves moving through a vacuum v = c, where c is the speed of light in a vacuum, this expression becomes: f = c λ; when waves from a monochrome source travel from one medium to another, their frequency remains the same—only their wavelength and speed change. Measurement of frequency can done in the following ways, Calculating the frequency of a repeating event is accomplished by counting the number of times that event occurs within a specific time period dividing the count by the length of the time period.
For example, if 71 events occur within 15 seconds the frequency is: f = 71 15 s ≈ 4.73 Hz If the number of counts is not large, it is more accurate to measure the time interval for a predetermined number of occurrences, rather than the number of occurrences within a specified time. The latter method introduces a random error into the count of between zero and one count, so on average half a count; this is called gating error and causes an average error in the calculated frequency of Δ f = 1 2 T
FM broadcasting is a method of radio broadcasting using frequency modulation technology. Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to provide high-fidelity sound over broadcast radio. FM broadcasting is capable of better sound quality than AM broadcasting, the chief competing radio broadcasting technology, so it is used for most music broadcasts. Theoretically wideband AM can offer good sound quality, provided the reception conditions are ideal. FM radio stations use the VHF frequencies; the term "FM band" describes the frequency band in a given country, dedicated to FM broadcasting. Throughout the world, the FM broadcast band falls within the VHF part of the radio spectrum. 87.5 to 108.0 MHz is used, or some portion thereof, with few exceptions: In the former Soviet republics, some former Eastern Bloc countries, the older 65.8–74 MHz band is used. Assigned frequencies are at intervals of 30 kHz; this band, sometimes referred to as the OIRT band, is being phased out in many countries.
In those countries the 87.5–108.0 MHz band is referred to as the CCIR band. In Japan, the band 76–95 MHz is used; the frequency of an FM broadcast station is an exact multiple of 100 kHz. In most of South Korea, the Americas, the Philippines and the Caribbean, only odd multiples are used. In some parts of Europe and Africa, only multiples are used. In the UK odd or are used. In Italy, multiples of 50 kHz are used. In most countries the maximum permitted frequency error is specified, the unmodulated carrier should be within 2000 Hz of the assigned frequency. There are other unusual and obsolete FM broadcasting standards in some countries, including 1, 10, 30, 74, 500, 300 kHz. However, to minimise inter-channel interference, stations operating from the same or geographically close transmitter sites tend to keep to at least a 500 kHz frequency separation when closer frequency spacing is technically permitted, with closer tunings reserved for more distantly spaced transmitters, as interfering signals are more attenuated and so have less effect on neighboring frequencies.
Frequency modulation or FM is a form of modulation which conveys information by varying the frequency of a carrier wave. With FM, frequency deviation from the assigned carrier frequency at any instant is directly proportional to the amplitude of the input signal, determining the instantaneous frequency of the transmitted signal; because transmitted FM signals use more bandwidth than AM signals, this form of modulation is used with the higher frequencies used by TV, the FM broadcast band, land mobile radio systems. The maximum frequency deviation of the carrier is specified and regulated by the licensing authorities in each country. For a stereo broadcast, the maximum permitted carrier deviation is invariably ±75 kHz, although a little higher is permitted in the United States when SCA systems are used. For a monophonic broadcast, again the most common permitted. However, some countries specify a lower value for monophonic broadcasts, such as ±50 kHz. Random noise has a triangular spectral distribution in an FM system, with the effect that noise occurs predominantly at the highest audio frequencies within the baseband.
This can be offset, to a limited extent, by boosting the high frequencies before transmission and reducing them by a corresponding amount in the receiver. Reducing the high audio frequencies in the receiver reduces the high-frequency noise; these processes of boosting and reducing certain frequencies are known as pre-emphasis and de-emphasis, respectively. The amount of pre-emphasis and de-emphasis used is defined by the time constant of a simple RC filter circuit. In most of the world a 50 µs time constant is used. In the Americas and South Korea, 75 µs is used; this applies to both stereo transmissions. For stereo, pre-emphasis is applied to the left and right channels before multiplexing; the use of pre-emphasis becomes a problem because of the fact that many forms of contemporary music contain more high-frequency energy than the musical styles which prevailed at the birth of FM broadcasting. Pre-emphasizing these high frequency sounds would cause excessive deviation of the FM carrier. Modulation control devices are used to prevent this.
Systems more modern than FM broadcasting tend to use either programme-dependent variable pre-emphasis. Long before FM stereo transmission was considered, FM multiplexing of other types of audio level information was experimented with. Edwin Armstrong who invented FM was the first to experiment with multiplexing, at his experimental 41 MHz station W2XDG located on the 85th floor of the Empire State Building in New York City; these FM multiplex transmissions started in November 1934 and consisted of the main channel audio program and three subcarriers: a fax program, a synchronizing signal for the fax program and a telegraph “order” channel. These original FM multiplex subcarriers were amplitude modulated. Two musical programs, consisting of both the Red and Blue Network program feeds of the NBC Radio Network, were transmitted using the same system of subcarrier modulation as part of a studio-to-transmitter link system. In April 1935, the AM subcarriers were replaced with much improved results.
The first FM subcarrier transmissions emanating from Major Armstrong's experimental station KE2XCC at Alpine, New Jersey occurred in 1948. These transmissions consisted of two-cha
Louisiana is a state in the Deep South region of the South Central United States. It is the 25th most populous of the 50 United States. Louisiana is bordered by the state of Texas to the west, Arkansas to the north, Mississippi to the east, the Gulf of Mexico to the south. A large part of its eastern boundary is demarcated by the Mississippi River. Louisiana is the only U. S. state with political subdivisions termed parishes. The state's capital is Baton Rouge, its largest city is New Orleans. Much of the state's lands were formed from sediment washed down the Mississippi River, leaving enormous deltas and vast areas of coastal marsh and swamp; these contain a rich southern biota. There are many species of tree frogs, fish such as sturgeon and paddlefish. In more elevated areas, fire is a natural process in the landscape, has produced extensive areas of longleaf pine forest and wet savannas; these support an exceptionally large number of plant species, including many species of terrestrial orchids and carnivorous plants.
Louisiana has more Native American tribes than any other southern state, including four that are federally recognized, ten that are state recognized, four that have not received recognition. Some Louisiana urban environments have a multicultural, multilingual heritage, being so influenced by a mixture of 18th-century French, Spanish, Native American, African cultures that they are considered to be exceptional in the US. Before the American purchase of the territory in 1803, present-day Louisiana State had been both a French colony and for a brief period a Spanish one. In addition, colonists imported numerous African people as slaves in the 18th century. Many came from peoples of the same region of West Africa. In the post-Civil War environment, Anglo-Americans increased the pressure for Anglicization, in 1921, English was for a time made the sole language of instruction in Louisiana schools before a policy of multilingualism was revived in 1974. There has never been an official language in Louisiana, the state constitution enumerates "the right of the people to preserve and promote their respective historic and cultural origins."
Louisiana was named after Louis XIV, King of France from 1643 to 1715. When René-Robert Cavelier, Sieur de La Salle claimed the territory drained by the Mississippi River for France, he named it La Louisiane; the suffix -ana is a Latin suffix that can refer to "information relating to a particular individual, subject, or place." Thus Louis + ana carries the idea of "related to Louis." Once part of the French Colonial Empire, the Louisiana Territory stretched from present-day Mobile Bay to just north of the present-day Canada–United States border, including a small part of what is now the Canadian provinces of Alberta and Saskatchewan. The Gulf of Mexico did not exist 250 million years ago when there was but one supercontinent, Pangea; as Pangea split apart, the Atlantic Ocean and Gulf of Mexico opened. Louisiana developed, over millions of years, from water into land, from north to south; the oldest rocks are exposed in areas such as the Kisatchie National Forest. The oldest rocks date back to the early Cenozoic Era, some 60 million years ago.
The history of the formation of these rocks can be found in D. Spearing's Roadside Geology of Louisiana; the youngest parts of the state were formed during the last 12,000 years as successive deltas of the Mississippi River: the Maringouin, Teche, St. Bernard, the modern Mississippi, now the Atchafalaya; the sediments were carried from north to south by the Mississippi River. In between the Tertiary rocks of the north, the new sediments along the coast, is a vast belt known as the Pleistocene Terraces, their age and distribution can be related to the rise and fall of sea levels during past ice ages. In general, the northern terraces have had sufficient time for rivers to cut deep channels, while the newer terraces tend to be much flatter. Salt domes are found in Louisiana, their origin can be traced back to the early Gulf of Mexico, when the shallow ocean had high rates of evaporation. There are several hundred salt domes in the state. Salt domes are important not only as a source of salt. Louisiana is bordered to the west by Texas.
The state may properly be divided into two parts, the uplands of the north, the alluvial along the coast. The alluvial region includes low swamp lands, coastal marshlands and beaches, barrier islands that cover about 20,000 square miles; this area lies principally along the Gulf of Mexico and the Mississippi River, which traverses the state from north to south for a distance of about 600 mi ) and empties into the Gulf of Mexico. The breadth of the alluvial region along the Mississippi is from 10 to 60 miles, along the other rivers, the alluvial region averages about 10 miles across; the Mississippi River flows along a ridge formed by its own natural deposits, from which the lands decline toward a river beyond at an average fall of six feet per mile. The alluvial lands along other streams present similar features; the higher and contiguous hill lands of the north and northwestern part of the state have an area of more than 25,000 square miles. They consist of prairie and woodl
AM broadcasting is a radio broadcasting technology, which employs amplitude modulation transmissions. It was the first method developed for making audio radio transmissions, is still used worldwide for medium wave transmissions, but on the longwave and shortwave radio bands; the earliest experimental AM transmissions began in the early 1900s. However, widespread AM broadcasting was not established until the 1920s, following the development of vacuum tube receivers and transmitters. AM radio remained the dominant method of broadcasting for the next 30 years, a period called the "Golden Age of Radio", until television broadcasting became widespread in the 1950s and received most of the programming carried by radio. Subsequently, AM radio's audiences have greatly shrunk due to competition from FM radio, Digital Audio Broadcasting, satellite radio, HD radio and Internet streaming. AM transmissions are much more susceptible than FM or digital signals are to interference, have lower audio fidelity.
Thus, AM broadcasters tend to specialise in spoken-word formats, such as talk radio, all news and sports, leaving the broadcasting of music to FM and digital stations. The idea of broadcasting — the unrestricted transmission of signals to a widespread audience — dates back to the founding period of radio development though the earliest radio transmissions known as "Hertzian radiation" and "wireless telegraphy", used spark-gap transmitters that could only transmit the dots-and-dashes of Morse code. In October 1898 a London publication, The Electrician, noted that "there are rare cases where, as Dr. Lodge once expressed it, it might be advantageous to'shout' the message, spreading it broadcast to receivers in all directions". However, it was recognized that this would involve significant financial issues, as that same year The Electrician commented "did not Prof. Lodge forget that no one wants to pay for shouting to the world on a system by which it would be impossible to prevent non-subscribers from benefiting gratuitously?"On January 1, 1902, Nathan Stubblefield gave a short-range "wireless telephone" demonstration, that included broadcasting speech and music to seven locations throughout Murray, Kentucky.
However, this was transmitted using induction rather than radio signals, although Stubblefield predicted that his system would be perfected so that "it will be possible to communicate with hundreds of homes at the same time", "a single message can be sent from a central station to all parts of the United States", he was unable to overcome the inherent distance limitations of this technology. The earliest public radiotelegraph broadcasts were provided as government services, beginning with daily time signals inaugurated on January 1, 1905, by a number of U. S. Navy stations. In Europe, signals transmitted from a station located on the Eiffel tower were received throughout much of Europe. In both the United States and France this led to a small market of receiver lines designed geared for jewelers who needed accurate time to set their clocks, including the Ondophone in France, the De Forest RS-100 Jewelers Time Receiver in the United States The ability to pick up time signal broadcasts, in addition to Morse code weather reports and news summaries attracted the interest of amateur radio enthusiasts.
It was recognized that, much like the telegraph had preceded the invention of the telephone, the ability to make audio radio transmissions would be a significant technical advance. Despite this knowledge, it still took two decades to perfect the technology needed to make quality audio transmissions. In addition, the telephone had been used for distributing entertainment, outside of a few "telephone newspaper" systems, most of which were established in Europe. With this in mind, most early radiotelephone development envisioned that the device would be more profitably developed as a "wireless telephone" for personal communication, or for providing links where regular telephone lines could not be run, rather than for the uncertain finances of broadcasting; the person credited as the primary early developer of AM technology is Canadian-born inventor Reginald Fessenden. The original spark-gap radio transmitters were impractical for transmitting audio, since they produced discontinuous pulses known as "damped waves".
Fessenden realized that what was needed was a new type of radio transmitter that produced steady "undamped" signals, which could be "modulated" to reflect the sounds being transmitted. Fessenden's basic approach was disclosed in U. S. Patent 706,737, which he applied for on May 29, 1901, was issued the next year, it called for the use of a high-speed alternator that generated "pure sine waves" and produced "a continuous train of radiant waves of uniform strength", or, in modern terminology, a continuous-wave transmitter. Fessenden began his research on audio transmissions while doing developmental work for the United States Weather Service on Cobb Island, Maryland; because he did not yet have a continuous-wave transmitter he worked with an experimental "high-frequency spark" transmitter, taking advantage of the fact that the higher the spark rate, the closer a spark-gap transmission comes to producing continuous waves. He reported that, in the fall of 1900, he transmitted speech over a distance of about 1.6 kilometers, which appears to have been the first successful audio transmission using radio signals.
However, at this time the sound was far too distorted to be commercially practical. For a time he continued working with more sophist
A slogan is a memorable motto or phrase used in a clan, commercial and other context as a repetitive expression of an idea or purpose, with the goal of persuading members of the public or a more defined target group. The Oxford Dictionary of English defines a slogan as "a short and striking or memorable phrase used in advertising." A slogan has the attributes of being memorable concise and appealing to the audience. The word slogan is derived from slogorn, an Anglicisation of the Scottish Gaelic and Irish sluagh-ghairm. Slogans vary from the visual to the chanted and the vulgar, their simple rhetorical nature leaves little room for detail and a chanted slogan may serve more as social expression of unified purpose than as communication to an intended audience. George E. Shankel's research states that, "English-speaking people began using the term by 1704." The term at that time meant "the distinctive note, phrase or cry of any person or body of persons." Slogans were common throughout the European continent during the Middle Ages.
Crimmins' research suggests that brands are an valuable corporate asset, can make up a lot of a business's total value. With this in mind, if we take into consideration Keller's research, which suggests that a brand is made up of three different components; these include, name and slogan. Brands names and logos both can be changed by the way. Therefore, the slogan has a large job in portraying the brand. Therefore, the slogan should create a sense of likability in order for the brand name to be likable and the slogan message clear and concise. Dass, Kohli, & Thomas' research suggests that there are certain factors that make up the likability of a slogan; the clarity of the message the brand is trying to encode within the slogan. The slogan emphasizes the benefit of the service it is portraying; the creativity of a slogan is another factor that had a positive effect on the likability of a slogan. Lastly, leaving the brand name out of the slogan will have a positive effect on the likability of the brand itself.
Advertisers must keep into consideration these factors when creating a slogan for a brand, as it shows a brand is a valuable asset to a company, with the slogan being one of the three main components to a brands' image. The original usage refers to the usage as a clan motto among Highland clans. Marketing slogans are called taglines in the United States or straplines in the United Kingdom. Europeans use the terms baselines, claims or pay-offs. "Sloganeering" is a derogatory term for activity which degrades discourse to the level of slogans. Slogans are used to convey a message about the service or cause that it is representing, it written as a song. Slogans are used to capture the attention of the audience it is trying to reach. If the slogan is used for commercial purposes it is written to be memorable/catchy in order for a consumer to associate the slogan with the product it is representing. A slogan is part of the production aspect that helps create an image for the product, service or cause it's representing.
A slogan can be a few simple words used to form a phrase. In commercial advertising, corporations will use a slogan as part of promotional activity. Slogans can become a global way of identifying good or service, for example Nike's slogan'Just Do It' helped establish Nike as an identifiable brand worldwide. Slogans should catch the audience's attention and influence the consumer's thoughts on what to purchase; the slogan is used by companies to affect the way consumers view their product compared to others. Slogans can provide information about the product, service or cause its advertising; the language used in the slogans is essential to the message. Current words used can trigger different emotions; the use of good adjectives makes for an effective slogan. When a slogan is used for advertising purposes its goal is to sell the product or service to as many consumers through the message and information a slogan provides. A slogan's message can include information about the quality of the product.
Examples of words that can be used to direct the consumer preference towards a current product and its qualities are: good, real, great, perfect and pure. Slogans can influence. Slogans offer information to consumers in an creative way. A slogan can be used for a powerful cause; the slogan can be used to raise awareness about a current cause. A slogan should be clear with a supporting message. Slogans, when combined with action, can provide an influential foundation for a cause to be seen by its intended audience. Slogans, whether used for advertising purpose or social causes, deliver a message to the public that shapes the audiences' opinion towards the subject of the slogan. "It is well known that the text a human hears or reads constitutes 7% of the received information. As a result, any slogan possesses a support
Country music known as country and western, hillbilly music, is a genre of popular music that originated in the southern United States in the early 1920s. It takes its roots from genres such as folk blues. Country music consists of ballads and dance tunes with simple forms, folk lyrics, harmonies accompanied by string instruments such as banjos and acoustic guitars, steel guitars, fiddles as well as harmonicas. Blues modes have been used extensively throughout its recorded history. According to Lindsey Starnes, the term country music gained popularity in the 1940s in preference to the earlier term hillbilly music. In 2009 in the United States, country music was the most listened to rush hour radio genre during the evening commute, second most popular in the morning commute; the term country music is used today to describe many subgenres. The origins of country music are found in the folk music of working class Americans, who blended popular songs and Celtic fiddle tunes, traditional English ballads, cowboy songs, the musical traditions of various groups of European immigrants.
Immigrants to the southern Appalachian Mountains of eastern North America brought the music and instruments of Europe along with them for nearly 300 years. Country music was "introduced to the world as a Southern phenomenon." The U. S. Congress has formally recognized Bristol, Tennessee as the "Birthplace of Country Music", based on the historic Bristol recording sessions of 1927. Since 2014, the city has been home to the Birthplace of Country Music Museum. Historians have noted the influence of the less-known Johnson City sessions of 1928 and 1929, the Knoxville sessions of 1929 and 1930. In addition, the Mountain City Fiddlers Convention, held in 1925, helped to inspire modern country music. Before these, pioneer settlers, in the Great Smoky Mountains region, had developed a rich musical heritage; the first generation emerged in the early 1920s, with Atlanta's music scene playing a major role in launching country's earliest recording artists. New York City record label Okeh Records began issuing hillbilly music records by Fiddlin' John Carson as early as 1923, followed by Columbia Records in 1924, RCA Victor Records in 1927 with the first famous pioneers of the genre Jimmie Rodgers and the first family of country music The Carter Family.
Many "hillbilly" musicians, such as Cliff Carlisle, recorded blues songs throughout the 1920s. During the second generation, radio became a popular source of entertainment, "barn dance" shows featuring country music were started all over the South, as far north as Chicago, as far west as California; the most important was the Grand Ole Opry, aired starting in 1925 by WSM in Nashville and continuing to the present day. During the 1930s and 1940s, cowboy songs, or Western music, recorded since the 1920s, were popularized by films made in Hollywood. Bob Wills was another country musician from the Lower Great Plains who had become popular as the leader of a "hot string band," and who appeared in Hollywood westerns, his mix of country and jazz, which started out as dance hall music, would become known as Western swing. Wills was one of the first country musicians known to have added an electric guitar to his band, in 1938. Country musicians began recording boogie in 1939, shortly after it had been played at Carnegie Hall, when Johnny Barfield recorded "Boogie Woogie".
The third generation started at the end of World War II with "mountaineer" string band music known as bluegrass, which emerged when Bill Monroe, along with Lester Flatt and Earl Scruggs were introduced by Roy Acuff at the Grand Ole Opry. Gospel music remained a popular component of country music. Another type of stripped-down and raw music with a variety of moods and a basic ensemble of guitar, dobro or steel guitar became popular among poor whites in Texas and Oklahoma, it became known as honky tonk, had its roots in Western swing and the ranchera music of Mexico and the border states. By the early 1950s a blend of Western swing, country boogie, honky tonk was played by most country bands. Rockabilly was most popular with country fans in the 1950s, 1956 could be called the year of rockabilly in country music, with Johnny Cash emerging as one of the most popular and enduring representatives of the rockabilly genre. Beginning in the mid-1950s, reaching its peak during the early 1960s, the Nashville sound turned country music into a multimillion-dollar industry centered in Nashville, Tennessee.
The late 1960s in American music produced a unique blend as a result of traditionalist backlash within separate genres. In the aftermath of the British Invasion, many desired a return to the "old values" of rock n' roll. At the same time there was a lack of enthusiasm in the country sector for Nashville-produced music. What resulted was a crossbred genre known as country rock. Fourth generation music included outlaw country with roots in the Bakersfield sound, country pop with roots in the countrypolitan, folk music and soft rock. Between 1972 and 1975 singer/guitarist John Denver released a se
KQID-FM is a Top 40 radio station licensed to Alexandria, Louisiana. The station serves the Central Louisiana, northern Acadiana, Natchez and Monroe, Louisiana; the station is owned by Cenla Broadcasting. Its studios are located on Texas Avenue in Alexandria, its transmitter is located southwest of Jena, Louisiana. K265FB is a Soft adult contemporary radio station in Louisiana, it signed on in February, 2015. It rebroadcasts KQID-FM HD2. HD3 simulcasts the programming of KDBS ESPN 1410 and FM translator K234CY. "Q93" KQID-FM official website Query the FCC's FM station database for KQID Radio-Locator information on KQID Query Nielsen Audio's FM station database for KQID Query the FCC's FM station database for K265FB Radio-Locator information on K265FB