Any song you hear on satellite radio starts as a recording in a specific format on distinctive recording mediums. IN most instances, the recording quality has to be maintained fairly high, usually around 384kb/s, whilst also being reasonably modest enough to be transported on CDs and DVDs. The music tracks employed in satellite radio are cataloged making use of a comparable system to the MP3 cataloging criteria, the ID3 tags. The selection for the music tracks which will be played is made by each channel individually. The DJ choosing the tracks normally chooses about 20-30 minutes worth of music. The DJ has to listen to the tracks to ensure they're in proper condition and then basically lets the computer decode the original file. The exact same thing is repeated once the initial 20-30 minutes are exhausted and the music playing cycle repeats itself.
Sound encoding in satellite radio.Encoding is one of the key elements of digital radio. Each channel is handled by a various encoder. The encoder basically takes the analog file and turns it into a digital one. The digitalization process is made in real time plus the music files are transformed into 1's and 0's. This procedure is carried out by powerful computers that analyze sound waves and frequency and break them into binary code. The encoding process is carried out at 128kb/s, 44.1Kh which is really CD top quality. After the song is encoded, it is transmitted to a multiplexer where other channels are also present - the multiplexer essentially takes all of the channels of the satellite radio provider and combines them into a single broadcast transmission. The data is then sent to a satellite modem device which modulates the information and sends it to the broadcaster's satellites, utilizing unique transmission frequencies.
What occurs above the Earth.Here is where the satellites are located. They obtain the transmission and transmit it to the receivers we have in our homes and cars. The satellites are located at 23,000 miles above us - both Sirius and XM Radio use satellites located at this distance from the Earth. The satellites are located in geo-sync, which means that hey orbit above the location they are designated to service at all times. When the satellite receives the transmission encoded at 128kb/s, 44.1 khz it rebroadcasts it to the geographical region it covers. Both Sirius and XM Radio use satellites that cover specific areas of the United states - mostly the East and West coasts. As an example, 1 of XM Radio's satellites covers the western component of USA, in all probability an area located roughly from Seattle to San Diego on the West and Minneapolis to Houston on the east. The increased sound top quality is possible simply because the broadcasted data (music tracks, news, sports transmission) don't get sliced up too a lot of times within the decoding procedure.
The antenna connected to your satellite radio receiver picks up the transmission on L-Band. The recent technological advances have allowed digital radio broadcasters to produce receivers small sufficient to fit mobile locations. Inside the early days of satellite radio, a large parabolic dish would need to be mounted on the auto as a way to receive signal. Also, prior to the a lot more compact receivers were created, the early satellite radio receivers needed electronic movements that directed the dish towards the satellite line of sight. Modern flat panel receivers have eliminated all the issues of their predecessors and may be fitted almost anywhere without taking up too a lot space.
The receiver plus the output, the receiver is the device that decodes the information, basically doing the precise opposite of what the encoding procedure was like. After receiving the signal from the antenna it amplifies it and converts it to usable sound. The automobile or property audio system is then able to play the selected satellite radio channel. The rest of the method is exactly like analog broadcasts would work, with an amplifier and speakers outputting the sound.
Sound encoding in satellite radio.Encoding is one of the key elements of digital radio. Each channel is handled by a various encoder. The encoder basically takes the analog file and turns it into a digital one. The digitalization process is made in real time plus the music files are transformed into 1's and 0's. This procedure is carried out by powerful computers that analyze sound waves and frequency and break them into binary code. The encoding process is carried out at 128kb/s, 44.1Kh which is really CD top quality. After the song is encoded, it is transmitted to a multiplexer where other channels are also present - the multiplexer essentially takes all of the channels of the satellite radio provider and combines them into a single broadcast transmission. The data is then sent to a satellite modem device which modulates the information and sends it to the broadcaster's satellites, utilizing unique transmission frequencies.
What occurs above the Earth.Here is where the satellites are located. They obtain the transmission and transmit it to the receivers we have in our homes and cars. The satellites are located at 23,000 miles above us - both Sirius and XM Radio use satellites located at this distance from the Earth. The satellites are located in geo-sync, which means that hey orbit above the location they are designated to service at all times. When the satellite receives the transmission encoded at 128kb/s, 44.1 khz it rebroadcasts it to the geographical region it covers. Both Sirius and XM Radio use satellites that cover specific areas of the United states - mostly the East and West coasts. As an example, 1 of XM Radio's satellites covers the western component of USA, in all probability an area located roughly from Seattle to San Diego on the West and Minneapolis to Houston on the east. The increased sound top quality is possible simply because the broadcasted data (music tracks, news, sports transmission) don't get sliced up too a lot of times within the decoding procedure.
The antenna connected to your satellite radio receiver picks up the transmission on L-Band. The recent technological advances have allowed digital radio broadcasters to produce receivers small sufficient to fit mobile locations. Inside the early days of satellite radio, a large parabolic dish would need to be mounted on the auto as a way to receive signal. Also, prior to the a lot more compact receivers were created, the early satellite radio receivers needed electronic movements that directed the dish towards the satellite line of sight. Modern flat panel receivers have eliminated all the issues of their predecessors and may be fitted almost anywhere without taking up too a lot space.
The receiver plus the output, the receiver is the device that decodes the information, basically doing the precise opposite of what the encoding procedure was like. After receiving the signal from the antenna it amplifies it and converts it to usable sound. The automobile or property audio system is then able to play the selected satellite radio channel. The rest of the method is exactly like analog broadcasts would work, with an amplifier and speakers outputting the sound.
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