MPA denotes MPEG-I or MPEG-II audio encapsulated as elementary streams. The encoding is defined in ISO standards ISO/IEC 11172-3 and 13818-3. The encapsulation is specified in work in progress , Section 3. The authors can be contacted at
Don Hoffman Sun Microsystems, Inc. Mail-stop UMPK14-305 2550 Garcia Avenue Mountain View, California 94043-1100 USA electronic mail: firstname.lastname@example.org
Sampling rate and channel count are contained in the payload. MPEG-I audio supports sampling rates of 32000, 44100, and 48000 Hz (ISO/IEC 11172-3, section 1.1; "Scope"). MPEG-II additionally supports ISO/IEC 11172-3 Audio...").