A method is provided for encoding an initial digital signal as an encoded signal. The initial digital signal includes a sequence of samples representing a multidimensional space. Each sample is assigned at least one physical quantity. The method includes, for some of the current samples, localized encoding of the signal as encoded local digital signals. The encoded signal includes the encoded local digital signals. The method also includes an on-the-fly analysis of a characteristic associated with the encoded signal, and a direct or indirect adjustment at the sample level, of at least one encoding parameter involved in the localized encodings so as to stabilize the value of the characteristic on a target value to within a tolerance.