The technology behind satellite radio

Any track you listen to on satellite radio stars as being a recording in a particular format on different recording mediums. Normally, the recording superior needs to be taken care of fairly excessive, usually close to 384kb/s, although also becoming reasonably tiny adequate to be transported on CDs and DVDs. The music tracks utilised in satellite radio are cataloged working with a similar method towards the MP3 cataloging criteria, the ID3 tags. The decision for that music tracks that can be played is built by each and every channel individually. The DJ selecting the tracks usually chooses regarding 20-30 minutes really worth of music. The DJ has to listen towards the tracks to create sure they are in proper situation and then merely lets the personal computer decode the original file. Exactly the same matter is repeated when the original 20-30 minutes are exhausted as well as music playing cycle repeats by itself.

Sound encoding in satellite radio

Encoding is one of the important aspects of digital radio. Every single channel is handled by a different encoder. The encoder basically normally takes the analog file and turns it into a digital one particular. The digitalization method is built in authentic time as well as music files are transformed into 1's and 0's. This method is completed by impressive computers that analyze sound waves and frequency and split them into binary value. The encoding method is completed at 128kb/s, 44.1Kh which is really CD superior. Right after the track is encoded, it really is transmitted to a multiplexer where by additional channels are also current - the multiplexer basically normally takes every one 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 machine which modulates the data and sends it towards the broadcaster's satellites, working with exceptional transmission frequencies.

Check out other technology about headphones cancelling , and about radios 2 way , bluetooth with phone for your references.


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