|අන්තර්ජාල මාධ්ය වර්ගය||
|ප්රථම නිකුත් කිරීම||1993|
|ආකෘතියේ වර්ගය||Audio compression format, audio file format|
MPEG-1 හෝ MPEG-2 ශ්රව්ය ස්තරය III, වැඩි වශයෙන් පොදුවේ හදුන්වන්නේ MP3 යන ආකෘතිය ලෙසිනි, is a patented digital audio encoding format using a form of lossy data compression. It is a common audio format for consumer audio storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on digital audio players.
MP3 is an audio-specific format that was designed by the Moving Picture Experts Group as part of its MPEG-1 standard and later extended in MPEG-2 standard. The first MPEG subgroup - Audio group was formed by several teams of engineers at Fraunhofer IIS, University of Hannover, AT&T-Bell Labs, Thomson-Brandt, CCETT, and others. MPEG-1 Audio (MPEG-1 Part 3), which included MPEG-1 Audio Layer I, II and III was approved as a committee draft of ISO/IEC standard in 1991, finalised in 1992 and published in 1993 (ISO/IEC 11172-3:1993). Backwards compatible MPEG-2 Audio (MPEG-2 Part 3) with additional bit rates and sample rates was published in 1995 (ISO/IEC 13818-3:1995).