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MPEG-1 is a standard for lossy compression of video and audio.It is designed to compress VHS-quality raw digital video and CD audio down to about 1.5 Mbit/s (26:1 and 6:1 compression ratios respectively) [2] without excessive quality loss, making video CDs, digital cable/satellite TV and digital audio broadcasting (DAB) practical.
The Moving Picture Experts Group (MPEG) designed MP3 as part of its MPEG-1, and later MPEG-2, standards.MPEG-1 Audio (MPEG-1 Part 3), which included MPEG-1 Audio Layer I, II, and III, was approved as a committee draft for an ISO/IEC standard in 1991, [14] [15] finalized in 1992, [16] and published in 1993 as ISO/IEC 11172-3:1993. [7]
MPEG-1 Audio Layer II or MPEG-2 Audio Layer II (MP2, sometimes incorrectly called Musicam or MUSICAM) [7] is a lossy audio compression format defined by ISO/IEC 11172-3 alongside MPEG-1 Audio Layer I and MPEG-1 Audio Layer III (MP3). While MP3 is much more popular for PC and Internet applications, MP2 remains a dominant standard for audio ...
MPEG-1 Audio Layer I, commonly abbreviated to MP1, is one of three audio formats included in the MPEG-1 standard. It is a deliberately simplified version of MPEG-1 Audio Layer II (MP2), created for applications where lower compression efficiency could be tolerated in return for a less complex algorithm that could be executed with simpler hardware requirements.
MPEG logo Some well known older (up to 2005) digital media formats and the MPEG standards they use. The Moving Picture Experts Group (MPEG) is an alliance of working groups established jointly by ISO and IEC that sets standards for media coding, including compression coding of audio, video, graphics, and genomic data; and transmission and file formats for various applications. [1]
MP2 (MPEG-1/2 Audio Layer II) ISO/IEC MPEG Audio Committee 1993 ISO/IEC 11172-3, ISO/IEC 13818-3 Free [24] various DVD software, video software, audio software TooLAME (encoding only), TwoLAME (encoding only), FFmpeg: DAB, DVB, DVD, VCD, SVCD: Yes No No Free [25] No MP3 (MPEG-1/2/2.5 Audio Layer III) ISO/IEC MPEG Audio Committee 1993 ISO/IEC ...
layer III (MPEG-1, MPEG-2 and non-ISO MPEG-2.5) FFmpeg (decoding only) LAME (encoding only) Advanced Audio Coding (AAC) (MPEG-2 Part 7) FAAC (encoder) and FAAD (decoder) FFmpeg; iTunes; Nero AAC Codec; VisualOn AAC Encoder (a.k.a. libvo_aacenc) Fraunhofer FDK AAC; libaacplus; MPEG-4 Audio. Advanced Audio Coding (AAC, MPEG-4 Part 3 subpart 4 ...
MPEG-2 Part 3 also defined additional bit rates and sample rates for MPEG-1 Audio Layer I, MPEG-1 Audio Layer II and MPEG-1 Audio Layer III (the first version of MP3). [6] The MPEG-2 Part 3 should not be confused with MPEG-2 Part 7: AAC a.k.a. MPEG-2 NBC (Non-Backward Compatible) - the MPEG-2 Advanced Audio Coding with support for multichannel ...