ISO/IEC 23000-6 (MPEG-A) Professional Archival Application Format (PA-AF) has just been standardized. This paper proposes an optimized and standard compliant implementation of a PA-AF archiving tool for audio archiving applications. The implementation made use of an optimized MPEG-4 Audio Lossless Coding (ALS) codec library for audio data compression and Gzip for other files. The PA-AF specification was extended to support platform specific attributes of Mac OSs while keeping interoperability among other OSs. Performance test results for actual audio data, such as ProTools HD projects, show that the processing time of a devised PA-AF archiving tool is twice as fast as that of MacDMG and WinZip while the compressed data size is much smaller than that of MacDMG and WinZip.

Authors: Harada, Noboru; Kamamoto, Yutaka; Moriya, Takehiro; Otsuka, Masato
Affiliations: Memory-Tech Corporation, Tokyo, Japan; NTT Communication Science Labs., Atsugi, Kanagawa, Japan(See document for exact affiliation information.)
AES Convention: 129 (November 2010) Paper Number: 8207
Publication Date: November 4, 2010
Subject: Audio Processing

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