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
Q. Steps uesd in quine mckluskey method? Step I: Build a table in that every term of expression is represented in row (Expression must be in SOP form). Terms can be expres
Equivalences: In this following miscellaneous equivalence rules are often useful during rewriting sessions. So there the first two allow us to completely get rid of implicatio
What is an Interface? An interface is not a class. It is an entity that is explained by the word Interface. An interface has no implementation; it only has the signature or in
An amplifier has an input resistance of 600 ohms and a resistive load of 75 ohms. When it has an rms input voltage of 100 mV, the rms output current is 20mA. Find the gain in dB.
Designed, developed, tested and documented the demo created for NPBlox framework. NPBlox framework is a framework which enabled developers to create CLI/WEB/SNMP interfaces for
How do you turn off cookies for one page in your site? Use the Cookie. Abandon Property which Gets or sets the discard flag set by the server. When true, this property instruc
program for finding the area under the curve #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; int
Distinguish among the functions islower() and tolower(). islower( ) and tolower( ): islower(c) is a character testing function described in ctype.h header file. This
The conversation speed of an analog to digital converter is maximum with which technique? Ans. With parallel comparator AD converter technique the conversation speed of an ana
What are the advantages of Public Key Cryptography? Advantages of Public Key Cryptography are illustrated in below: a) Increased convenience and security and b) Electro
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