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MPEG-1 Audio Layer 3, more commonly referred to as MP3, is a popular digital audio encoding and lossy compression format, designed to greatly reduce the amount of data required to represent audio, yet still sound like a faithful reproduction of the original uncompressed audio to most listeners. It was invented by a team of European engineers who worked in the framework of the EUREKA 147 DAB digital radio research program, and it became an ISO/IEC standard in 1991.

Overview


MP3 is an audio-specific compression format. It provides a representation of pulse-code modulation-encoded audio in much less space than straightforward methods, by using psychoacoustic models to discard components less audible to human hearing, and recoding the remaining information in an efficient manner. Similar principles are used by JPEG, a lossy image compression format.

The MP3 format uses a hybrid transformation to transform a time domain signal into a frequency domain signal:

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NPR Topics: Politics & Society

White House Red-Faced Over Berlusconi Gaffe
Tue, 08 Jul 2008 18:00:00 -0400
The White House has apologized for a biography of Silvio Berlusconi that calls the Italian leader "one of the most controversial leaders in the history of a country known for government corruption and vice." The bio was distributed at the G-8 summit.
Mccain, Obama Court Hispanics
Tue, 08 Jul 2008 16:24:00 -0400
Republican John McCain and Democrat Barack Obama address the League of United Latin American Citizens. Democrats aim to increase Hispanic turnout, while Republicans hope to build on the inroads George W. Bush made among Hispanic voters in 2004.
Housing Bill Moves Slowly Through Congress
Tue, 08 Jul 2008 16:00:00 -0400
The housing bill is inching forward though Congress with bipartisan support, while Nevada Republican Sen. John Ensign tries to attach a package of energy tax breaks. The tax breaks also have bipartisan support, but only if their cost is offset.

The Talk of the Town

The Chill
Nick Paumgarten Mon, 30 Jun 2008 04:00:00 -0000
If you had stumbled into Banjo Jim’s, in the East Village, on a recent Wednesday night and encountered a sixty-something guy leading a band through a fervent rendition of “Wild Thing,” for an audience of two dozen or so, you might have concluded, “This is lame,” and slipped back . . .
Oily Speculations
James Surowiecki Mon, 30 Jun 2008 04:00:00 -0000
When bad things happen, it’s always nice to have a scapegoat. So, with Americans furious about soaring oil prices, Congress has gone in search of someone to blame. There are a number of usual suspects to choose from, depending on your politics--OPEC, greedy oil companies, lily-livered environmentalists opposed . . .
Obama’s Iraq Problem
George Packer Mon, 30 Jun 2008 04:00:00 -0000
In February, 2007, when Barack Obama declared that he was running for President, violence in Iraq had reached apocalyptic levels, and he based his candidacy, in part, on a bold promise to begin a rapid withdrawal of American forces upon taking office. At the time, this pledge represented conventional thinking . . .

 
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Against RIAA site - Site arguing against the Recording Industry Association of America.

Friends of Napster - Compares using Napster with taping songs off the radio, and its use as actually creating more interest in buying music, not less.

I Want My MP3 - An open letter to lawmakers stating that musicians and singers must conform to technological changes and find new ways to make money off their talents. Asserts that propping up the old market paradigm will not work.
Meta Description: [ As technology evolves, it creates and destroys ways of making money. Musicians and singer must conform to these technological changes, and find new ways to make money off their talents. There is simply no turning back. ]

Napster Thoughts... - A verbose look at the Napster issue from some guy's point of view.

Napster, My.MP3.com, Digital Music, and the Future - Investigation new distribution methods like Napster for music, and the developers are being sued by the Recording Industry Association of America (RIAA).
Meta Description: [ Web site for the campaign for Internet Freedom of speech. We believe that Internet users should have the right to decide for themselves what they should see and read on the Internet. ]

Nature versus nurture versus Napster - Article discussing actions of the Recording Industry Association of America (RIAA) against Napster.
Meta Description: [ I don't know about you, but when I was 12 years old, hunched over a stereo system in hopes of capturing songs from the radio on a cassette, I didn't consider myself a pirate. Unfortunately, the Record ]

Students Fight to Save Napster - While the RIAA has systematically targeted companies and even individuals with legal action, the people who use the Internet show their disapproval by flocking to the exact institutions the industry association is trying to shut down, and fighting colleges to keep them unrestricted.
Meta Description: [ Students Fight to save Napster. Grass Roots Effort Grows - MP3newswire.net ]

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. Watch this tutorial and see how you can easily record and edit an audio mp3 file for inclusion in your podcast with ...
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