FIELD: physics.
SUBSTANCE: invention relates to audio encoding and decoding devices. First decoded audio information is provided on the basis of an audio frame encoded in a linear prediction domain. Second decoded audio information is provided on the basis of an audio frame encoded in a frequency domain. Zero-input-response of a linear predictive filtering is obtained. Wherein an initial state of the linear predictive filtering is defined in dependence on the first decoded audio information and the second decoded audio information. Second decoded audio information, which is provided on the basis of an audio frame encoded in the frequency domain following an audio frame encoded in the linear prediction domain is modified in dependence on the zero-input-response to obtain a smooth transition between the first decoded audio information and the modified second decoded audio information.
EFFECT: technical result is the improved coding quality when switching between different modes.
18 cl, 20 dwg
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