FIELD: physics, computer engineering.
SUBSTANCE: present invention relates to methods and devices for forward time-domain aliasing cancellation in a coded signal transmitted from an encoder to a decoder. The technical result is facilitating cancelling of aliasing effects at the switching point between encoding modes. The decoder receives the bit stream and cancels the time-domain aliasing in the encoded signal in response to the information contained in the bitstream. The information may be representative of a difference between a frame of the audio signal to be encoded in a first encoding mode and a decoded signal from the frame including time-domain aliasing effects.
EFFECT: information related to correction of the time-domain aliasing in the encoded signal is calculated at the encoder and added to a bit stream sent from the encoder to the decoder.
34 cl, 17 dwg
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