Explain in detail companding, Computer Engineering

Assignment Help:

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.

1421_Companding Curves for PCM.png

FIG - Companding Curves for PCM


Related Discussions:- Explain in detail companding

Explain about 4-bit adder-subtractor circuit, Q. Explain about 4-bit adder-...

Q. Explain about 4-bit adder-subtractor circuit? Subtraction operation on binary numbers can be obtained by succession of addition operations only it implies that to achieve su

Determine the firewall in intranet technology, Determine the firewall in In...

Determine the firewall in Intranet technology Firewall remains the basic foundation of Internet and Intranet security, for many users getting into the corporate Intranet would

Compute physical address of data byte, Q. Compute Physical address of data ...

Q. Compute Physical address of data byte? Offset of data byte = 0020h Value of data segment register (DS) = 3000h Physical address of data byte   This computation

Determine sky wave communication is prone to fading or not, Sky wave Commun...

Sky wave Communication is prone to fading, it is true or false. Ans: It is true that sky wave Communication is prone to fading.

Explain the microprocessor development system, Microprocessor development s...

Microprocessor development system Computer systems have undergone many changes recently. Machines that once filled large areas have been reduced to small desktop computer syste

Determine a positive logic system logic state level, In a positive logic sy...

In a positive logic system, logic state 1 corresponds to ? Ans. For positive digital logic, we choose two voltages levels. Higher voltage shows logic 1 and a lower voltage sho

Two "next screen "attributes, Of the two "next screen "attributes the attri...

Of the two "next screen "attributes the attributes that has more priority is?? Dynamic.

Cache misses - computer architecture, Cache Misses Compulsory misse...

Cache Misses Compulsory misses -  it is caused by initial access to a block that has never been in the cache (also called cold start misses Capacity miss - it is cause

Explain basic cpu structure, A computer manipulates data consistent with in...

A computer manipulates data consistent with instructions of a stored program. Stored program means that the data and program are stored in same memory unit. Central processing unit

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd