MPEG Audio Layer II

File Format
Name	MPEG Audio Layer II
Ontology	Electronic File Formats Audio and Music MPEG Audio Layer II
Extension(s)	.mp2, .mpa
MIME Type(s)	audio/mpeg, audio/MPA
LoCFDD	fdd000338
PRONOM	fmt/198
Released	1993

MPEG Audio Layer II, also known as MP2 (but not to be confused with MPEG-2), is a compressed audio format. There are two versions of it: MPEG-1 Audio Layer II and MPEG-2 Audio Layer II.

It is one of the standards defined in MPEG-1 Part 3 (ISO/IEC 11172-3), and in MPEG-2 Part 3 (ISO/IEC 13818-3).

See also

• MPEG Audio Layer I (MP1)
• MPEG Audio Layer III (MP3)

Specifications

• ISO/IEC 11172-3:1993 - MPEG-1 Part 3 (not free to download)
• ISO/IEC 13818-3:1998 - MPEG-2 Part 3 (not free to download)
• RFC 3551
• RFC 3555

Software

• Konvertor
• VLC
• PL_MPEG

Sample files

• mp3++mp2++audiotest.mp2
• dexvert samples — audio/mp2

Links

• Wikipedia: MPEG-1 Audio Layer II