Skip to main content

Table 1 MPEG Audio Layer III versions [19]

From: New approach for determining the QoS of MP3-coded voice signals in IP networks


International standard

Supported sampling rate frequencies

MPEG-1 Audio Layer III

ISO/IEC 11172-3 (MPEG-1 Part 3)

32,000 Hz/44,100 Hz/48,000 Hz

MPEG-2 Audio Layer III

ISO/IEC 13818-3 (MPEG-2 Part 3)

16,000 Hz/22,050 Hz/24,000 Hz

MPEG-2.5 Audio Layer III

Nonstandard, proprietary

80,00 Hz/11,025 Hz/12,000 Hz