MPEG layer 3 is a type of audio codec where processed by significant compression from the original audio source with very little loss in sound quality.
The compression up to 12:1 produces a very little degradation. Tighter compression can be achieved, but it will effect in sound degradation results.To obtain certain compression, we must adjust the bit rates. The standart bit rates (near cd quality result) is 128 or 112 kbit/s. Many people claim that low-rate MPEG layer 3 files sound better than Real Audio files with similar bit rates.
The advantage of MP3 is that it can be broken up into pieces, and each piece is still playable. The feature that makes this possible (headerless file format) also means that MP3 files can be made to stream across the net real-time (assuming the playback bitrate and speed of the Internet connection are compatible).
Why MP3 is Popular?
The popularity of MP3 comes from its practical uses. Music tracks in WAV format are extremely large in file size, averaging around 50MB in size. Since it is so large, it is not practical to send WAV files through email or offer them for download on the Internet. MP3, however, compresses WAV audio on average of 10 to 12 times smaller than the original size. The result is audio tracks around 3 to 4 MB in size, perfect for downloading and sending through the Internet. Thus, custom MP3 format CDs can be created with 10 to 12 times the amount of tracks of a normal 12-15 track audio CD, producing CDs with over 100 tracks easily. The format is also popular for turning your PC into a jukebox of hundreds or thousands of songs or loading them into a portable mp3 player and taking your music collection wherever you want.
How to listen MP3?
Since MP3 is a data format and not an audio format, you cannot listen to these files in a normal CD player. MP3 needs a player designated as an MP3 player to decode the audio and produce listenable music from the data.
There are many free mp3 players for download on the Internet. Winamp is the most popular and fairly easy to use.
Other ways to play mp3 include portable mp3 players, newer home stereos and DVD players with denoted MP3 playback ability, and car mp3 players.
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