Is there any tradeoff between voice quality and bandwidth, how?



Is there any tradeoff between voice quality and bandwidth, how?..

Answer / syncopator

Yes there is.

The narrower the bandwidth, the less information which can be carried.

The opposite being true - the wider the bandwidth, the more information can be carried.

Take, as an example, an a.m. broadcast station. Frequency separation between channels is, in the U.S.A., 10kHz, and in the U.K. 9kHz.

The maximum bandwidth transmitted must not exceed 10kHz or 9kHz, depending on the country.

For a 10kHz bandwidth, that of each sideband must not exceed 5kHz, or 4.5kHz in the case of 9kHz channel spacing. In practice the actual bandwidth is a little narrower to prevent one station interfering with another.

This means that the maximum audio frequency which an a.m. broadcast station can transmit is either 4.5kHz or 4kHz depending on the channel separation.

Now consider television transmissions. There is obviously a lot more information to carry and the bandwidth must therefore be much wider.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Electronics Communications Interview Questions

What are the disadvantages of continuous gating signal?

0 Answers  


what is resister

6 Answers  


pls send me the syllabus questions on rrb section engineer (telecom)

0 Answers  


can any one tell us exact bandwidth of any AM power station???

4 Answers   Siemens,


What types of carriers are present in space charge region?

0 Answers  






what is reconfiguration of E1

0 Answers   Ericsson,


Which type of architecture 8085 has?

3 Answers  


Can you help me to explain briefly the function of Op-Amp in circuit design.tq

0 Answers  


What is the difference between ASICs and FPGA devices? Which one is better? Which is being currently in use?

4 Answers  


* ** *12* *123* *1234* *12345* *123456* ********

0 Answers   DRDO,


Why is the grid in a cro provided with a hole in it?

0 Answers  


what is the importance of clock frequency in microprocessor?

3 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4452)
  • Electrical Engineering Interview Questions Electrical Engineering (16638)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)