Horn (acoustic)

An acoustic horn or waveguide is a tapered sound guide designed to provide an acoustic impedance match between a sound source and free air. This has the effect of maximizing the efficiency with which sound waves from the particular source are transferred to the air. Conversely, a horn can be used at the receiving end to optimize the transfer of sound from the air to a receiver.

Acoustic horns are found in nature in the form of the burrows constructed by male mole crickets to amplify their song.

Applications

Acoustic horns are used in:

Horn loudspeakers

Loudspeakers are often built into horn-shaped enclosures or use horns. Most often the higher-frequency elements (tweeters and midranges) use horns, sometimes with acoustic diffraction lenses to spread the sound waves in a horizontal pattern at ear-level and limit the vertical pattern. An audio driver (e.g., a speaker cone or dome) is mounted at the small, inner end. Horn loudspeakers are very efficient, but have a sharp cutoff frequency, depending on their size, with little sound output below. Bass sounds are usually produced by conventional speaker cones, since a (straight or folded) horn sufficient to reproduce 20 Hz would have to be about 12 ft. (4 meters) long, except when a building, ground surface, or room itself is considered as part of the horn.

Horn (anatomy)

A horn is a pointed projection on the head of various animals consisting of a covering of keratin and other proteins surrounding a core of live bone. In mammals, true horns are found mainly among the ruminant artiodactyls, in the families Antilocapridae (pronghorn) and Bovidae (cattle, goats, antelope etc.).

One pair of horns is usual; however, two or more pairs occur in a few wild species and domesticated breeds of sheep. Polycerate (multi-horned) sheep breeds include the Hebridean, Icelandic, Jacob, Manx Loaghtan, and the Navajo-Churro.

Horns usually have a curved or spiral shape, often with ridges or fluting. In many species only males have horns. Horns start to grow soon after birth, and continue to grow throughout the life of the animal (except in pronghorns, which shed the outer layer annually, but retain the bony core). Partial or deformed horns in livestock are called scurs. Similar growths on other parts of the body are not usually called horns, but spurs, claws or hoofs depending on the part of the body on which they occur.

Horn of Kankas

The Kankas noble family, otherwise known as Horn, is a noble family from Finland of medieval frälse.

Its first known member, Olof Mattsson, was documented between 1381 and 1415, having a seat in Halikko, near the present town of Salo. His seal featured the figure of a drinking horn. The family became one of the most prominent in Finland at the end of Middle Ages. In the 16th century, the use of the word signifying their horned logo became established as surname.

Its head, Sir Claes Christersson Horn (1518–66), was among the first to be created friherre (baron) in Sweden, which took place at the coronation of Eric XIV of Sweden in 1560. Friherre Claes got the title Baron of Åminne (fi. Joensuu).

Other branches

A genealogically junior branch descended from baron Claes' uncle, knight Henrik Klasson Horn (1512–95), who held his seat at Kankainen Manor in Masku which is nearer to Turku than Halikko.

Sir Henrik Horn (Marienborg) (1618–93) was created friherre of the barony of Marienborg in Livonia in 1651 by queen Christina of Sweden. His male line went extinct in 1728. He was a nephew of Gustav, Count of Björneborg (fi. Pori).

Horn (Schwarzbach)

The River Horn (French: La Horn; German: Hornbach) is a left tributary of Schwarzbach flowing through the region of Lorraine, in north-east France, and the state of Rhineland-Palatinate, in southern Germany. Its headwaters rise in the French town of Bitche, in the Moselle Department, following a north by north-eastern course, before forming a part of the border between France and Germany. As the Franco-German border takes a sharp turn to the west, the Horn continues into Germany. Here, it follows a roughly north-western course, ending in the German town of Zweibrücken, emptying into the Schwarzbach. Its length in France is 27.6 km.

References

Gabrielle Aplin

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Gabrielle Aplin (born 10 October 1992) is an English singer-songwriter. Aplin came to public attention after she gained a large online following by posting acoustic covers of songs on her YouTube channel.

In February 2012, Aplin signed a recording deal with Parlophone and began recording her début album. She gained mainstream attention the following November when she was selected to record the soundtrack for John Lewis television commercial with a cover of Frankie Goes to Hollywood's "The Power of Love", which charted at number 1 on the UK Singles Chart in December 2012. Her début album English Rain was released in May 2013 to positive reviews. It debuted and peaked at number two on the UK album chart and led to several more singles: "Please Don't Say You Love Me", "Panic Cord", "Home" and "Salvation". English Rain has since been certified Gold in the UK, selling over 100,000 copies.

Aplin's second album, "Light Up The Dark,", featuring the singles 'Light Up The Dark' and 'Sweet Nothing,' was released on 18 September 2015.

Acoustic (Brandi Carlile album)

Acoustic is an album by Brandi Carlile. "Throw it All Away," "Fall Apart Again," and "Tragedy" all later appeared on Brandi Carlile, while "Shadow on the Wall" appeared on The Story.

Track listing

Personnel

Embrace (English band album)

Embrace is the eponymously titled sixth studio album by English alternative rock band Embrace. The album, self-produced by Richard McNamara, was released on 25 April 2014 in Friday-release countries and on 28 April 2014 in the United Kingdom by independent record label Cooking Vinyl. The album is the band's first in eight years, after the release of their fifth studio album This New Day in 2006.

Embrace, created with a goal to outdo their debut studio album, the critically acclaimed The Good Will Out, features a return to the band's original form, dropping the post-britpop influenced and commercially accessible sounds of their previous two albums, Out of Nothing and This New Day. Drawn by influences from post-punk bands from the 1970s and 80s, the album is the band's first experimental album, with electronic instruments and sounds and further influences from hard rock music. With the creative process of the album lasting a total of three years of writing and another three years in production, Embrace was recorded at Richard McNamara's self-built Magnetic North Studios in Halifax, England.