MPEG Audio Layer I

File Format
Name	MPEG Audio Layer I
Ontology	Electronic File Formats Audio and Music MPEG Audio Layer I
Extension(s)	.mp1
MIME Type(s)	audio/mpeg, audio/MPA
PRONOM	fmt/347
Released	1993

MPEG Audio Layer I, also known as MP1 (but not to be confused with MPEG-1), is a compressed audio format. There are two versions of it: MPEG-1 Audio Layer I and MPEG-2 Audio Layer I.

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 II (MP2)
• 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)

Software

• Konvertor
• VLC

Sample files

• mp1-sample.mp1

Links

• Wikipedia: MPEG-1 Audio Layer I