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

Which techniques are utilized to gain on the number pairs, Which techniques...

Which techniques are utilized to gain on the number pairs and also explain how it helps in connecting number of subscribers. In rural areas, subscribers are usually dispersed.

Summary of tasks, Summary of Tasks The Task Summary tries to shows the ...

Summary of Tasks The Task Summary tries to shows the amount of duration each task has spent starting from initialization of the task till its completion on any processor as d

Microprocesser, explain the bock and pin diagram of 8259 micropocesser

explain the bock and pin diagram of 8259 micropocesser

Describe the bespoke versus off-the-shelf software, Bespoke versus off-the-...

Bespoke versus off-the-shelf software Generally software packages are bought off-the-shelf. Though, certain applications (generally for industrial companies, commercial busines

What is priority interrupt, What is Priority interrupt. It is a system ...

What is Priority interrupt. It is a system that establishes a priority over the several resources to determined which condition are to be serviced first when two or more reques

Make your simulation run faster, Ameliorating the mechanical delays of seek...

Ameliorating the mechanical delays of seeks and rottion are usually regardeed as major aspects of device drivers for disks. The simplest way for a disk device driver to service dis

Assembly language programming, write an assembly language program for fibon...

write an assembly language program for fibonacci series?

What are the layers of data description in r/3, What are the layers of data...

What are the layers of data description in R/3? There layesr are there:- The external layer. The ABAP/4 layer. The database layer.

Sun and nis law, Sun and Ni's Law The Sun and Ni's Law is a generalizat...

Sun and Ni's Law The Sun and Ni's Law is a generalization of Amdahl's Law as well as Gustafson's Law. The fundamental idea underlying the Sun and Ni's Law is to find the soluti

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