My radio doesn\'t sound as good as my CD player even though most radio stations
ID: 3644297 • Letter: M
Question
My radio doesn't sound as good as my CD player even though most radio stations are playing CDs. CD-ROM's are written with 2352 bytes per block (only 2048 bytes is data, the rest is header and error correcting code). 75 blocks of music are played every second. It should be possible for a radio station to digitally transmit the blocks as they are read from the CD-ROM. Your radio receiver would convert the digital blocks of data into sound using the same digital to analog converter used in CD players. The transmitter would probably want to send the full 2352 bytes to take advantage of the error correction. Assuming a 16 state Quadrature amplitude modulation technique is used (i.e. V = 16), how much bandwidth or radio frequency spectrum would be required to transmit the music in this form? What is the maximum noise allowable (measured in dB) on a 200 kHz channel to transmit this data? Will this idea improve the sound quality or have any other effect?Explanation / Answer
http://en.wikipedia.org/wiki/Frequency_modulation
Check the above-mentioned link, hope it will assist u.
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