A process for distributing digital audio sequences according to a nominal
flux format including a succession of fields, each of which includes at
least one digital block clusterizing a selected number of coefficients
corresponding to single audio elements that are digitally coded inside
the flux and utilized by audio decoders that are able to play it to be
able to decode it correctly, including a preparatory step including
modifying at least one of the coefficients, and a transmission step
including a primary flux in compliance with a nominal format including
blocks that were modified during the preparatory step and by a route
separated from the primary flux by an additional piece of digital
information which allows reconstruction of the original flux starting
with a calculation, on recipient equipment, as a function of the primary
flux and of the additional information.