FIELD: physics.
SUBSTANCE: said utility invention relates to signal processing in the form of successive values, e.g., audio signal samples or video signal samples, which, in particular, are especially suitable for lossless coding applications. During processing of a signal containing a sequence of discrete values, having the first frequency band with high energy signal and the second frequency band with low energy signal, the sequence of discrete values is manipulated initially (202) to obtain a sequence of manipulated values so that at least one of the manipulated values would be different from an integer. After that, the sequence of manipulated values is rounded (204) to obtain a sequence of rounded manipulated values. Rounding is performed in order to create a generated rounding error spectrum so that the rounding error with the spectrum created would have higher energy in the first frequency band as compared to the second frequency band.
EFFECT: obtaining particularly efficient coding.
19 cl, 24 dwg
