Transmission error concealment in an audio signal

Process concealing transmission error in an audio digital signal in which in detecting (3) of missing or erroneous samples in a signal sample synthesis (5) are generated with the aid of at least one operator prediction short term and at least for the sounds audible operator LRF estimated on the basis of decoded samples of a decoded signal passed, said samples decoded being stored (6) above when the data transmitted from said last signal is valid, characterized in that the energy of the synthesis signal thus generated with the aid of a calculated and adapted sample by sample according to an adaptation law dependent on at least one parameter of said stored decoded samples is controlled gain.