Videos
Podcasts
Blogs
Quizzes
GamesPosts Tagged: ‘compression’
Why is there a need to convert analog signals to digital?
by Marshall Brain | December 31, 2009
You Asked: Why is there a need to convert analog signals to digital? — Ankit, Gwalior, India Marshall Brain Answers: One reason is to avoid degradation and corruption of the signal. This is one reason why CDs (which are digital) are preferred over vinyl records (which are analog). On a vinyl record, the pressure of [...]
Certain parts of a song can be eliminated without significantly lowering the song’s quality. The MP3 does not sound exactly the same as the original CD song. Check out our HowStuffWorks article to learn more about MP3 files and audio quality.
Recent Postings by Category
BrainStuff
- Thank You and Best Wishes to Marshall Brain
- Contest – Design a $300 house and win $25,000
- How the Philtrum works – the place under your nose where your face comes together
The Coolest Stuff on the Planet
- Sailing, Takes Me Away…To The Seychelles
- Cute Animal Tuesday: Black Vulture
- Traveling on the Orient Express
Keep Asking
- Why can a 5 foot 8 inch man dunk a basketball on a 10 foot rim while some people of taller stature can’t?
- What happens to our sun once it runs out of fuel?
- How do we know the age of the universe?
Stuff Mom Never Told You
- Who invented the Christmas card?
- How the Kinsey Report Fueled Whiskey Sales
- How to Get Your Wedding Announcement into The New York Times
Stuff to Blow Your Mind
- The Seven Deadlies: Pride Cometh Before the Brain
- Warhammer 40K: 25 Years of Orks in Space
- A Visit to the Tellus Science Museum
Stuff You Should Know
- The Southern Death Cult, the Maya and Georgia
- Deformed Baby Spider Brains
- Amazing Medical Conditions: Maple Syrup Urine Disorder
The Stuff of Genius
CarStuff
- Was Chrysler’s “It’s Halftime in America” Super Bowl commercial a little too political?
- Why is NASA studying car safety?
- Tips for in-car Navigation Systems
How-to Stuff
- How to Make the Most of a Gallery Crawl (When You’re on a Shoestring Budget)
- How to Swim with Dolphins (When Deep Water Terrifies You)
- How to Cure a Homemade Cookie Craving Without Turning on the Oven
PopStuff
- PopStuff Show Notes: Episode 43: Drag Queens: You Better Work!
- PopStuff Show Notes: Episode 42: Road Trip!
- PopStuff Show Notes: Episode 41: Celebrity Couples
Stuff They Don't Want You To Know
Stuff to Change the World
- Who will own the Arctic?
- Obesity: The New Global Crisis
- Bill Gates Makes For A Pretty Decent Cartoon
Stuff You Missed in History Class
- Butch Cassidy: Should we read between the lines?
- Are we rooting for D.B. Cooper?
- Party Time: A Look at Unconventional Politics
