networking, Computer Engineering

Assignment Help:
Nyquist''s sampling theorem says "if you have a signal that is perfectly band limited to a bandwidth of f0 then you can collect all the information there is in that signal by sampling it at discrete times, as long as your sample rate is greater than 2f0 " . The higher the sample rate the more small/fast fluctuations in the shape of the signal will be captured in a digital format - at the cost of having to use more storage space to store all of the extra numbers. The Nyquist theorem, which exactly describes the relationship between the sampling rate and the spectrum of the stored audio. According to the Nyquist theorem, the highest frequency which can be accurately represented in a digital audio format is exactly half of the sampling rate. This cutoff frequency at half the sampling rate is called the Nyquist frequency. For example, if a digital recording system is running at a sample rate of 44,100 Hz (the CD standard) then the highest frequency that system can accurately capture will be 22,050 Hz - exactly half the sample rate. As another example, if a digital recording system was running at a sample rate of 22,050 Hz (common on computers during the late 1980s and early 1990s) then the highest frequency it could accurately represent would be 11,025 Hz. Notice how this figure is considerably lower than the 20 kHz typically cited as the upper limit of human hearing. A recording/playback system at 22,050 Hz would be missing most of the brilliance register of the audible spectrumtion

Related Discussions:- networking

What is the size limitation of an access database, Size limitation does not...

Size limitation does not relate to number of records in a table within a database. Forms, reports, macros, and modules also add to database size, but is rather minimal compared to

Explain about integration levels, Q. Explain about Integration Levels? ...

Q. Explain about Integration Levels? Initially only few gates were integrated consistently on a chip. This initial integration was termed as small-scale integration (SSI). With

What is interrupt vector table, Interrupt vector table is always created in...

Interrupt vector table is always created in first 1K area of the memory. Explain why? When CPU receives an interrupt type number from PIC, it uses this number to look up corres

Write a program to find the area and perimeter of a circle, Write a program...

Write a program to find the area and perimeter of a circle of given radius # include void main() { float radius, area, perimeter, pi=3.14; printf("\nEnter the rad

What is vector processing, What is vector processing?  There is ...

What is vector processing?  There is a class of computational problems that are beyond the capabilities of a conventional computer. These problems are characterized by t

Illustrate role of world wide web in field of e-commerce, Illustrate the ro...

Illustrate the role of World Wide Web into the field of e-commerce. In the 1990 year, the advent of the World Wide Web upon the Internet represented a turning point into e-com

Describe independent loops in fortran, Q. Describe Independent Loops in for...

Q. Describe Independent Loops in fortran? HPF offers extra opportunities for parallel execution by employing the INDEPENDENT directive to declare the iterations of a do-loop is

Show the instruction execution by using the micro-operations, Q. Show the i...

Q. Show the instruction execution by using the micro-operations? A simple instruction can require: Instruction fetch: fetching instructions from the memory. Instruc

Explain about the network security, Explain about the network security. ...

Explain about the network security. Network security implies the protection of networks and their services through unauthorized access, destruction or disclosure, modificati

Purpose of pointer phrase in string command, The Purpose of POINTER phrase ...

The Purpose of POINTER phrase is to verify the leftmost position within receiving field where the first transferred character will be kept

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