Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain in detail companding.
Companding: It is the process of compressing and expanding. This includes compressing the signal at the transmitter and expanding this at the receiver. The modulating signal to be transmitted is passed by an amplifier that has correctly adjusted non linear transfer characteristic, favoring minute amplitude signals. Such are the artificially large while they are quantized and therefore the effect of quantizing noise upon them is decreased. The correct amplifier relations are restored at the receiver by expander. This is desirable to agree to several standards for companding as order to realize hardware efficiencies and to permit sending and receiving with a variety of users. The most general application of companding is in voice transmission. Japan and North America have adopted a standard compression curve termed as µ law companding. The law µ companding formula is specified by
Vout = ( Vmax X In (1+ µ Vin / Vmax) / In (1+ µ ) Where
Vmax = Maximum uncompressed modulating input amplitude.
Vin = Amplitude of the input signal at particular immediate at time
µ = Parameter used to describe the amount of compression
Vout = Compressed output voltage.
FIG - Companding Curves for PCM
What is a semaphore? Semaphore: It is a synchronization tool which gives a general-purpose solution to controlling access to critical sections.
What is the difference between Reply-to and Return-path in the headers of a mail function? Ans) Reply-to: Reply-to is where to deliver the respond of the mail. Return-pat
how can we find compound interest through flowchart
Rentrag has decided to replace all of the computers currently being used by all of the business and office staff. He has asked you to recommend a set of specification for computers
Can we use WRITE statements in screen fields? If not how is data transferred from field data to screen fields? We cannot write field data to the screen using the WRITE stateme
What is a symbolic constant? How it is defined ? Symbolic constants are constants of any type declared by using the #define compiler directive. It is a preprocessor directive.
Q. Explain about Programmable Logic Array? Until now individual gates are considered as fundamental building blocks from that different logic functions can be derived. With the
The decimal equivalent of Binary number 10101 is ? Ans. 1x2 4 + 0x2 3 +1x2 2 +0x2 1 + 1x2 0 = 16 + 0 + 4 + 0 + 1 = 21.
what is java?
Arbitrary categorisation - learning decision trees: Through visualising a set of boxes with some balls in. There if all the balls were in a single box so this would be nicely
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd