News tagged with mp3
MP3 song-searching can increase risk for drivers
Consumers are increasingly using MP3 players in their vehicles, and auto makers have responded: Data show that 90% of new vehicles sold in the United States have MP3 connectivity. Makers of aftermarket MP3 controllers are ...
Other Sciences / Social Sciences
Apr 16, 2012 |
not rated yet |
0
Vinyl records make the world go around again
In the brave new world of MP3 players, compact discs are dying, cassettes are Stone Age, and old-fashioned vinyl records... they're back!
Jan 22, 2012 |
3.8 / 5 (4) |
1
Jobs had Google phones in crosshairs: biographer
Insights into Apple co-founder Steve Jobs's vendetta against Google and his criticisms of fellow high-tech titans spread quickly online ahead of the Monday release of his authorized biography.
Oct 22, 2011 |
3 / 5 (2) |
1
Superior sound for telephones, mobile and related devices
Telephone calls and video conferences with a sound quality that approaches that of direct communication are now possible with a new audio coding technology -- it is almost as if the discussion participants ...
May 26, 2011 |
5 / 5 (2) |
0
Microsoft Stores puzzle shoppers
It looks like an Apple Store, filled with eager employees in brightly colored T-shirts. Laptops, smart phones and MP3 players are arrayed on modern tables for anyone who wants to try them out.
Dec 10, 2010 |
5 / 5 (1) |
0
A Walkman Obit: Remembering the portable player
(AP) -- The Walkman, the Sony cassette device that forever changed music listening before becoming outdated by digital MP3 players and iPods, has died. It was 31 years old. ...
Electronics / Consumer & Gadgets
Oct 25, 2010 |
5 / 5 (2) |
0
Portable media players associated with short-term hearing effects
Temporary changes in hearing sensitivity are associated with potential harmful effects of listening to an MP3 player, according to a report in the June issue of Archives of Otolaryngology-Head & Neck Surgery.
Jun 21, 2010 |
2 / 5 (1) |
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E-readers, tablet computers set to take off: BCG survey
Consumers worlwide are very interested in tablet computers like Apple's iPad and electronic readers such as Amazon's Kindle, and sales of the devices could take off when prices drop, according to a new survey.
Electronics / Consumer & Gadgets
May 18, 2010 |
not rated yet |
0
Sony Announces New Wearable, Water Resistant W250 Series Walkman MP3 Player
Ideal for fitness and exercise enthusiasts, the new Sony Walkman W Series, model NWZ-W252, features a convenient lightweight, wearable and water resistant design.
Electronics / Consumer & Gadgets
Apr 13, 2010 |
3.7 / 5 (3) |
1
Gadgets: Here come the iPad accessories...
As of this writing, everyone alive now has an iPad. OK, maybe not everyone but with the publicity this device has generated you would think this is the case.
Electronics / Consumer & Gadgets
Apr 08, 2010 |
1.8 / 5 (4) |
0
Chatty robots, flying alarm clocks at top high-tech fair
Robots that teach Chinese, computers controlled by moving the eyes and flying alarm clocks were among the weird and wonderful gadgets wowing crowds Wednesday at the world's top high-tech fair.
Electronics / Consumer & Gadgets
Mar 03, 2010 |
4.2 / 5 (5) |
0
Stay in touch with PhysOrg while on the go -- iPhone Apps, Amazon Kindle, Podcasts
(PhysOrg.com) -- As our readers know, PhysOrg constantly strives to be on the cutting edge when it comes to the latest science and technology news. Most importantly, we want to get the news out to our readers ...
Mar 01, 2010 |
4.8 / 5 (8) |
1
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Pioneers of MP3 unveil new chapter in digital music
Pioneers in the development of the first MP3 players this week unveiled ground-breaking technology aimed at offering new content to music lovers during the MIDEM music industry trade fair.
Jan 26, 2010 |
2.6 / 5 (8) |
4
Samsung Introduced New MP3 Players With Transparent Touch AMOLED Display
Samsung Electronics recently unveiled two MP3 players designed for the media savvy and those concerned with managing their personal well-being.
Electronics / Consumer & Gadgets
Jan 12, 2010 |
4.5 / 5 (4) |
0
Samsung Launches M5650 Music Phone
Samsung Electronics today unveiled the Samsung M5650, a music-focused addition to its popular lineup of full touch screen handsets for young mobile users.
Electronics / Consumer & Gadgets
Dec 21, 2009 |
2 / 5 (1) |
0
MP3
MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is a patented digital audio encoding format using a form of lossy data compression. It is a common audio format for consumer audio storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on digital audio players.
MP3 is an audio-specific format that was designed by the Moving Picture Experts Group (MPEG) as part of its MPEG-1 standard and later extended in MPEG-2 standard. The first MPEG subgroup – Audio group was formed by several teams of engineers at Fraunhofer IIS, University of Hannover, AT&T-Bell Labs, Thomson-Brandt, CCETT, and others. MPEG-1 Audio (MPEG-1 Part 3), which included MPEG-1 Audio Layer I, II and III was approved as a committee draft of ISO/IEC standard in 1991, finalised in 1992 and published in 1993 (ISO/IEC 11172-3:1993). Backwards compatible MPEG-2 Audio (MPEG-2 Part 3) with additional bit rates and sample rates was published in 1995 (ISO/IEC 13818-3:1995).
The use in MP3 of a lossy compression algorithm is designed to greatly reduce the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio for most listeners. An MP3 file that is created using the setting of 128 kbit/s will result in a file that is about 1/11 the size than the CD file created from the original audio source. An MP3 file can also be constructed at higher or lower bit rates, with higher or lower resulting quality.
The compression works by reducing accuracy of certain parts of sound that are considered to be beyond the auditory resolution ability of most people. This method is commonly referred to as perceptual coding. It uses psychoacoustic models to discard or reduce precision of components less audible to human hearing, and then records the remaining information in an efficient manner.
For more information about MP3, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
