Wednesday, 9 January 2013

mp3 file format

The MP3 file format revolutionized music distribution in the late 1990s, when file-swapping services and the first portable MP3 players made their debut. MP3, or MPEG Audio Layer III, is one method for compressing audio files. MPEG is the acronym for Moving Picture Experts Group, a group that has developed compression systems for video data, including that for DVD movies, HDTV broadcasts and digital satellite systems.
Using the MP3 compression system reduces the number of bytes in a song, while retaining sound that is near CD-quality. Anytime you compress a song, you will lose some of its quality, which is the trade-off for the ability to carry more music files in a smaller storage system.
 
Although MP3 is perhaps the most well-known file format, there are other file formats that can be played on MP3 players. While most MP3 players can support multiple formats, not all players support the same formats. Here are a few of the file formats that can be played on different players:
  • WMA - Windows Media Audio
  • WAV - Waveform Audio
  • MIDI - Music Instrument Digital Interface.
  • AAC - Advanced Audio Coding
  • Ogg Vorbis - A free, open and un-patented music format
  • ADPCM - Adaptive Differential Pulse Code Modulation
  • ASF - Advanced Streaming Format
  • VQF - Vector Quantization Format
  • ATRAC - Sony's Adaptive Transform Acoustic Coding 3

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