The 32-bit address space of a Wave file limits its maximum size to 4 GB. Some practical computer systems may impose a lower limit of 2 GB. This is not a significant obstacle for mono files at basic rate sampling frequencies, but the limitation becomes increasingly significant as the number of channels in the file is increased or when double- or quadruple-rate sampling frequencies are used. The Extended Broadcast Wave Format (BWF-E) file format described in this amendment is designed to be a compatible extension of the Broadcast Wave Format (BWF) already defined in AES31-2. It extends the maximum size capabilities of the RIFF/WAVE format by increasing its address space to 64 bits where necessary. BWF-E is also designed to be mutually compatible with the EBU T3306 "RF64" extended format.
http://www.aes.org/publications/standards/search.cfm?docID=74
Posted: Monday, February 16, 2009
« AES47-Am1-2008, Amendment 1 to AES47 -… | Main | AES10-2008, Serial Multichannel Audio Digital… »
