MPEG* LAYER 3 AUDIO
d/b/a MP3
Short for MPEG Layer 3, a type
of audio data
compression that can reduce digital sound files by a 12:1 ratio with virtually no loss
in quality.
Moving Picture Experts Group, and pronounced
"m-peg", a working group of ISO. The term also refers to the family of digital
video compression standards and file formats developed by the group. MPEG generally
produces better-quality video
than competing formats, such as Video for Windows, Indeo and QuickTime. MPEG files can
be decoded by special hardware or by software.
MPEG achieves high compression rate by
storing only the changes from one frame to another, instead of
each entire frame. The video information is then encoded using a technique called DCT.
MPEG uses a type of lossy compression, since some data is removed. But the diminishment of
data is generally imperceptible to the human eye.
There are two major MPEG standards: MPEG-1 and MPEG-2. The
most common implementations of the MPEG-1 standard provide a video resolution of 352-by-240
at 30 frames per second (fps).
This produces video quality slightly below the quality of conventional VCR videos.
A newer standard, MPEG-2, offers resolutions of 720x480 and
1280x720 at 60 fps, with full CD-quality audio. This is sufficient for all the major TV
standards, including NTSC,
and even HDTV. MPEG-2 is used
by DVD-ROMs. MPEG-2 can
compress a 2 hour video into a few gigabytes. While decompressing an MPEG-2 data stream
requires only modest computing power, encoding video in MPEG-2 format requires
significantly more processing power.
The ISO standards body is currently working on a new
version of MPEG called MPEG-4 .(The body had proposed an MPEG-3 standard for HDTV but
realized that MPEG-2 already met the requirements. The technology, though, referred to as MP3, is widely used.) MPEG-4 will
be based on the QuickTime file format.
digMp3.com
Offers an organized and comprehensive collection MPEG3 audio layer resources. Major
categories include a file archive, links archive, news, FAQ, and historical information.
Fraunhofer IIS Layer 3 Audio Page
MP3.com
Resource site for news and information about MP3. Includes a question and answer section,
information about hardware and software, and ;inks to related sites. Updated on Aug
4, 1998
MPEG
Audio Layer 3 (MP3)
Excellent collection of information and resources related to MP3. This site is hosted by
mpeg.org.
MPEG Audio Layer-3 FAQ
Comprehensive FAQ covering various topics related to audio compression. Updated on Apr 20, 1998
Yahoo!'s
MP3 page
Yahoo!'s directory of MP3. Updated on Aug 4, 1998
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CD-grabbers |
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Program: WinDAC
Author: Christoph Schmelnik
Latest version: 1.41 from what I do not remember date
Size: 290 kbytes
Status: Shareware |
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Program: CD Copy
Author: Markus Barth
Latest version: 4.511 from what I do not remember date
Size: 675 kbytes
Status: Shareware |
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Encoders |
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Program: BladeEnc
Author: Tord Jansson
Latest version: 0.72 from 21.09.98
Size: 108 kbytes
Status: Freeware
To facilitate work with command line is called my program Bladebatch
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Program: .mp3 Producer
Author: Opticom
Latest version: 2.1 from what I do not remember date
Size: about 1000 kbytes
Status: Commercial |
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Players (more correct one) |
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Program: Winamp
Author: Nullsoft (Homepage)
Latest version: 2.03 from 08.10.98
Size: 500 kbytes
Status: Shareware
It is possible to make skins and with the help by mine other program Viscolor Utility
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