What is layer-3/MP3 compression? Explain with MP3 features.

MP3 compression : Motion Picture Experts Group (MPEG) 1 Layer 3 is a file format that compress audio files at a 1 : 24 to 1 : 5 ratios. The high compression rate makes MP3 files smaller and of higher quality, than most other audio formats.

MP3 Features : 

• MP3 stands for MPEG-1 Audio-Layer 3 -a digital audio compression algorithm.
  
• Compression factor of about 12 : 1 at satisfactory sound quality.
  
• MP3 is an open format for making large music files smaller.
  
• MP3 is widely recognized as the mot popular format for storing music on the world widely web and at internet and CDs.
  
• The MP3 format is high compression technique than other digital audio.
  
• MP3 files have the extension.mp3
  
• 2 channel Audio
  
• 16-bit samples
  
• 44.1 KHz (CD-DA) sampling frequency.
  
• Max supported rate-384 kbps.

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