15. Audio documents reproduction apparatus according to claim 13 ; wherein the apparatus comprises a means of introduction of a command activating the means of reproduction of audio documents within the group whose identifier is reproduced, the reproduction of audio documents being performed in a predetermined order.
15. Audio documents reproduction apparatus according to claim 13 ; wherein the apparatus comprises a means of introduction of a command activating the means of reproduction of audio documents within the group whose identifier is reproduced, the reproduction of audio documents being performed in a predetermined order. 17. Audio documents reproduction apparatus according to claim 15 ; wherein the means of reproduction reproduces the documents commencing with that whose point is closest to the barycentre of the points associated with the documents of the group, and thereafter those situated further and further away from the barycentre.