The invention relates to a method of synchronizing two digital data streams with
the same content, the method comprising the steps of:
a) generating at given intervals for each of the two digital data streams S1
and S2 at least two characteristic numbers expressing at least one parameter
characteristic of their content;
b) generating from said numbers points D1 and D2 for each
of the two streams S1 and S2 representing at least one of
said characteristic parameters in a space of at least two dimensions, the points
D1 corresponding to the stream S1 and the points D2
corresponding to the stream S2 that are situated in a time period T defining
trajectories representative of the data streams S1 and S2 to
be synchronized;
c) shifting the time periods of duration T assigned to the digital data streams
S1 and S2 relative to each other by calculating a criterion
of superposition of said trajectories having an optimum value representing the
required synchronization;
d) choosing the shift between the time periods corresponding to said optimum
value
as a value representative of the synchronization.