
This zip file contains 70 audio files, most of which are meant to test loudness equipment for compliance with EBU Tech 3341 and EBU Tech 3342. This v5.0 includes a monophonic noise signal to help set the reference listening level as per EBU Tech 3343.
EBU Terms of Use for these sequences.
A change log is available in the zip file (readme.txt).
More on loudness.