Abstract: The invention concerns a device for processing signals in the form of successive packets sent in successive time slots of the type comprising a processing system including at least one processing member with secondary effects (81, 82) likely to generate disturbances affecting adjacent packets. Two processor members (81, 82) with secondary effects are disposed in separate channels (90, 91) and switching means (83, 84) cyclically connect the separate channels each during one time slot and disconnect them between times so that a channel connected to process a packet cannot be disturbed by adjacent packets each processed by another channel.