Satellite radio systems are actually part of a larger group of broadcasting mediums, which specialists refer to as Digital Multimedia Broadcasting or DMB. This digital transmission system is used in order to send data to different receivers such as radios, television sets or mobile phones and PDAs. There are two different ways of using digital multimedia broadcasting – S-DMB which is broadcasting via a satellite or T-DMB which uses terrestrial emitters. The complexity of the entire digital multimedia broadcasting field is huge. Out of all the features and characteristics digital broadcasting offers, satellite radio is probably the most spectacular as it generated immense interest and triggered an intense competition between the two main satellite radio broadcasters, Sirius and XM Radio. The development of satellite radio and other forms of digital broadcasting is spectacular because it offers two main qualities that terrestrial emitters are deficient in: quality and coverage. In the case of satellite radio, for example, the sound quality from a satellite broadcast is much higher than AM or FM broadcasts, as the hissing noises and transmission disturbances are eliminated.

Technical features of digital multimedia broadcasting – overview

Whether it refers to television, satellite radio or cell phone transmissions, digital multimedia broadcasting is based on the Eureka 147 DAB standard. Digital television uses the T-DMB which is made for transmissions on frequency bands III (VHF) and L (SHF). T-DMB is an ETSI standard (TS 102 427 and TS 102 428).

T-DMB uses MPEG-4 Part 10 (H264) for the video and MPEG-4 Part 3 BSAC or HE-AAC V2 for the audio. When it comes to satellite radio, there were a few issues to be resolved by the main satellite radio broadcasters. The satellite radio receiver needs to be in the line of sight of the satellite to

Bebop-The dance elements gradually faded away into a true art of real music by the musicians Miles Davis, Bud Powell, Clifford Brown, Thelonious Monk, Sonny Stitt, and Ray Brown who wanted to steer away from the commercial type music. These musicians sought to use examples of the Jazz musicians of the past such as Lester young, Coleman Hawkins, Earl Hines and Art Tatum to expand Jazz music to another level.

At this time, Jazz music moved away from the basic melodic element of the piece to produce a more abstract chordal sound of dissonant tones, and chromatic patterns. The dissonant tones in Jazz music can be heard when two tones are played simultaneously in a clashing manner that can either sound strange or terrible depending on how the tones of the chord fit together as melody notes from a particular key. Clashing sounds can also occur from the use of lowered fifths and raised fourths.

The chromatic sound of the music allows the musician to freely play each of the twelve tones of the instruments without restriction. Musicians were able to play substitute chords as well as altered chords that could change the key of the piece in a whim. The change in rhythm became more discreetly energetic in sound which is used predominantly in Jazz music today. For instance, the cymbal was hit in beat of a 1+a 2+ a 3 +a 4 +a while the snare and bass drum are suddenly hit without warning.

Soul Jazz- From the late 1950’s, a style of music that derived from gospel and soul using the tenor saxophone, repetition with melodic groove hooks, and less intricate improvisation that occurred over the chordal harmonies. The music from the popular radio artist of the time known as Ramsey Lewis wrote "The In Crowd" a hit in 1965. Souls Jazz music signature was powerful bass lines and changing tempo of the song.

The essence of Jazz music is the ethereal atmosphere of the dimensional harmony created by kaleidoscope of chromatic tones. It is the pulsating back beat of syncopating African rhythms through the rumble of the drums, or soft sound of the brush to the snare.

The music is an expression of melody from the depth of the soul conveyed as a gospel in many unique ways. These elements combined with the free impressionistic ambiance of instrumental tones in orchestration as a foundational juxtaposition of 7th, 9th,13th chordal harmony makes this style truly unique. The essence of Jazz music is music that is upbeat, full of pizzazz ,yet laid back with style. One would never guess that this free style of music has a foundation that began with Baroque elements found in Classical music.

Classical music comes from the basic structure of homophony when two or more musical lines are played vertically in the same direction as sacred music. In fact, Jazz music is created with homophony in terms of the movement of chords to support the melodic improvisation. However, when it comes to playing intervals and chordal harmonies, Jazz is free from the restriction of classical form. For example, if a song is written in the key of C or a minor there are no sharps or flats written on the staffs. Many times in Jazz music Accidentals are put in the music to cause a tonal effect found in chromatic tones. Tonal effects can occur when one or more notes are altered by raising or lowering a pitch by one half step. Sharps are symbols in the shape of a number sign or tic tac toe board (#). Flats are symbols in the shape of a lower case B(b), yet shaped differently like half a heart.

In some Jazz pieces, both the sharp and flat can occur simultaneously in a chord. The result of