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
zero, one, two three address instructions
Question (a) Imagine you need to move people through a distance of 10 miles, with the following specifications. • Car: capacity = 5, speed = 60 miles/hour • Bus: capacity
Why IO devices cannot be connected directly to the system bus? Ans: The IO devices can't be directly connected to the system bus because the following reason A) The data tra
quick search working
Explain why most interrupts are active low? This answers why most signals are active low when you see the transistor level of a module, active low implies that the capacitor in
We also need to know, given a cell, which of its neighbours has all of its walls intact. Write the function wallsintact that accepts the grid and a list of neighbouring cells and r
Uniform Path Cost Search - artificial intelligence: A breadth first search will find the solution with the shortest path length from the initial state to the goal state. In fa
Name the various Display devices Different types of display devices are discussed along with the principles on which these work. The main display devices used with CAD systems
Suppose that a process scheduling algorithm favors those processes that have used the least processor time in the recent past. Why will this algorithm favour I/O- bound processes,
Acting Rationally: "Al" Capone was finally convicted for tax evasion. Were the police reacting on rationally?? To solve this puzzle, we must first look at how the performance
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