For many reasons (and even if there may be many arguments against), MP3 is the king of the compressors audio loss. It is so widely known that hardly needs an introduction, it takes a lot of time hanging around, and while many competitors (some of them very good) will have to step out, your order is not close to anything.
MP3 was born the year 1987, thanks mainly to the investigation of the Fraunhofer Institute for Integrated Circuits IIS. In 1995 the files generated with this codec will bring began to spread. Mp3, with that name was popularized this specification.
The rise of the Internet and this format was the hand: the explosion of Napster and the P2P exchange programs during the second half of the 90 can be counted as one of the most important causes for the development of the network.
As of 2002, began to emerge a number of competitors, which have led to slow this format has lost some ground to formats such as AAC and WMA (introduced and supported by brands like Apple and Microsoft, respectively), although it remained as the leader in attendance.
Pros:
Cons: (Maybe this list is not updated):
There are several mp3 encoders that create MP3 files. Some, like the old Xing mp3 encoder can convert a file from uncompressed audio to MP3 very quickly, but with dismal results. Other mp3 encoders, such as those that come included in WMP or in Winamp versions are mutilated, with only a handful of options, which also limits the quality.
Therefore, among all the alternative mp3 encoders, the best is unquestionably those based on LAME mp3 encoder (like Mp3Doctor), an open source encoder, which rivals even the successors of MP3 technology in quality and speed.
LAME MP3 ENCODER itself is not a program to create MP3 (LAME Is not an MP3 Encoder, as its name), but that is usually included in other software, such as in rippers CDex or EAC.
My favorite feature is its LAME MP3 ENCODER presets, with which it is possible to generate high-quality files without worrying about adjusting many things (because they are all adjusted). These are the presets:
In 1987, Leonardo Chiariglione, who had belonged to the group CCIR (International Radio Consultative Committee) responsible for the standardization of High Definition Television, High Definition Television (HDTV) and disappointed at the failure to adopt a single international standard (Japan Europe and the United States struggling for their own format), was attending the meeting of the JPEG (Joint Pictures Experts Group, United Group Picture Experts). This group had been formed by the International Standards Organization ISO and the International Electrotechnical Commission IEC to develop a standard that would allow lower the amount of storage space required for still images.
At this meeting, Chiariglione was deeply impressed by what could be achieved among a group of experts when they are not handled the interests of any industry. So I approached the Director of JPEG, Hiroshi Yoshuda, and suggested the creation of a successor group, which will be responsible for standardizing the digital encoding of moving images.
In this way, in 1988 and Yoshuda as its representative to the ISO, the ISO / IEC Technical Committee created the United Information Technology, Subcommittee 29, Working Group 11 (ISO / IEC JTC1/SC29/WG11), more known as MPEG, under the direction of Chiariglione, to require the development of standards for the coded representation of moving images, audio information partner, and their combination for recording and reading in a digital storage medium.
The first objective of the group, then consisting of 12 people, was able to read compact discs with moving images at a rate close to 1.5 Mbps. Already for 1993 concluded the first definitive standard known as MPEG-1 (numbered as ISO / IEC 11172). The following year he was released on MPEG-2 standard (ISO / IEC 13818) that involved data compression (flows of bits) originally to 270 Mbps (uncompressed) to achieve a bit rate between 2 and 9 Mbps (after compression). MPEG-2 showed compatibility with the previous standard and was designed for a larger number of applications, including television footage interwoven. The standard MPEG-3, whose intention was to standardize the High Definition Television HDTV, was subsequently included in the MPEG-2.
The current objectives of the group are the new standard MPEG-4 and MPEG-7. The MPEG-4 (Coding of Audio-Visual Objects, Coding of Audio-Visual Objects; numbered ISO / IEC 14496) was formally approved in October 1998 (the first version), while the second version, designed for a larger number Application was approved in December 1999 (not a replacement for the version-1, extends only). It is important to indicate that the expansions and improvements to the MPEG-4 will be carried out until 2002 (and will be included in the specifications as new profiles, but even compatible with the version-1). MPEG-4 allows the manipulation of images by the end user via the Internet or any other mechanism that allows the development of interactive multimedia.
It also is working on the so-called MPEG-7 (ISO / IEC 15938), whose formal name is Multimedia Content Description Interface, Interface Multimedia Content Description, which tries to encompass all aspects (other than the compression of information) that involves multimedia. That is, MPEG-7 describes how to offer, filter, search and manage digital multimedia information. The first version of MPEG-7 was approved in July 2001. As is customary in all developments of the MPEG group, was later included several improvements (which may be assembled into a version of this standard-2).
In late 1999, MPEG (now consisting of over 300 experts) began work on the new standard MPEG-21 (Multimedia Framework, Structure Multimedia), whose primary objective is to provide standards that are based mainly on the point of view users, and not so much of the industry.
Converting your audio CDs into MP3 files (mp3 encoding), you can save them on your PC or save up to two hundred songs on one CD-ROM. Meet three programs to make it very easy to use and free.
Each day that passes, the audio file format becomes more popular MP3. The new players, so that even independent of the PC, it will help that many choose as an alternative to store and play your favorite music. First, because it took ten times less space. Moreover, not only can you download MP3 legal network: You can also "manufacture" in your home, from your audio CDs common.
Surely you know that one thing is the audio format of the common audio CDs (with CDA), another is the one who uses the PC for various purposes (generally, WAV) and there is a third party, the MP3. 've Seen that it is impossible to copy with Windows Explorer, a hint of a music CD to the hard disk. What we will explain here is how digitally extracting the contents of the file and save it as a CDA file of Windows.
For that, we need to have a specific program. This type of program is called "ripper", which literally means "ripper" (!). The audio file in WAV format can then converted to other formats, such as the MP3, with a type of program called "mp3 encoder" (encoder).
All this, which seems a bit complex, is dramatically simplified by a few free programs, easy to use and excellent performance, which perform the two functions ( "ripear" and "encode", that is, in Castilian, extract and convert audio a CD). And as we shall see, too many things more.
Perhaps the most used is the Music Match Jukebox, which makes everything. First, you can use simply to listen to (play) music in any format, including MP3 and audio CDs (instead of Windows Media player).
If only be devoted to that, would not have anything particular, were it not because you can also use it to seek legal MP3 files on the Web, download and add to your collection, listen to music online (streaming), to buy the network, connect to radios or watching videos online.
This program lets you create a database of all albums and songs you want to generate playlists (playlists) depending on your preference. When you enter a CD, you can include in the database the title of the song, CD, which belongs to the genre, and more.
If you're online, you can let the program do so through its role of connecting to the CDDB, a major database that automatically give you all the information you need.
But Music Match Jukebox is useful for what is the main reason for this note: MP3 recording. With just put your audio CD in the CD player in your computer and open the recording, you can "ripear" or remove your CDs to WAV file format uncompressed, Windows Media or MP3.
You can also create MP3 from your cassettes or LPs, using the line input (line-in) of the sound card in your computer, if you have the necessary connections Finally, for each file you can edit the "Tags" or labels name, performer, and so on. or be imported from online CDDB, as we saw. Music Match is working with various versions of tags (ID3v1 or ID v2), making it widely compatible with MP3 recorded in other programs.
And as if this were not enough ...
Since version 5.1 of Music Match Jukebox, you can record audio CDs (that is, discs that you can listen to music on any computer) directly to a blank CD-ROM in MP3 format, without using any other program. Simply, we will have to click on the button "CD-R" (as long as you have, of course, a CD burner). The only shortcoming is that it does not support rewritable (CD-RW).
This program has several functions (skins, plug-ins to display, equalizer, and others).
We also want to introduce other players in this note: CDEX and CD 'n' Go.
CDex is a free, simple and practical, that extracts digital audio from your CDs, keeping it as WAV files on your hard drive, and also allows converted to MP3 and connect with the CDDB database. Unlike the Music Match, which weighs more than 7 MB, this program gets off the network within minutes, since the file size is only 983 Kb. Created by Albert Faber, the version available is 1.30 beta 8, Oct. 12, 2000.
And if you want even more options, CD n 'Go, a program developed in. The version 1.55, from Aug. 2, 2000, weighs 3.3 Mb, can be downloaded free of charge and includes an uninstaller, if you decide to dispense with their services.
With regard to his duties as MP3 recorder, has nothing to envy to CDEX or any of the other programs Anglophones: supports all types of readers from CD, it connects with CDDB to recognize data from the CD that is going to "ripear" and pass the information to the labels (ID3 Tags) of MP3, and so on. Use easy and intuitive (in addition to being in Castilian), uses a variety of engines to generate MP3 files, which will get good quality, although at a speed less than that of Music Match Jukebox.
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