Patent ID: 8781842

Claim:
A method for audio coding, comprising: receiving a present audio signal sample; sending the present audio signal sample to a causal encoding section; encoding, by the causal encoding section, the present audio signal sample into an encoded representation of the present audio signal sample, wherein the encoded representation of the present audio signal sample is a causal prediction for the present audio signal sample based on at least one previously received audio signal sample; encoding, by the non-causal encoding section, a previous audio signal sample into an encoded enhancement representation of the previous audio signal sample, wherein the previous audio signal is a signal sample from a point in time prior to the present audio signal sample, the non-causal encoding section encodes the previous audio signal sample based on information provided by the causal encoding section, the encoded enhancement representation of the previous audio signal sample is a non-causal prediction of the previous audio signal sample based on the information provided by the causal encoding section, and the information provided by the causal encoding section is information about the encoding of the present audio signal sample into an encoded representation of the present audio signal sample; and sending the encoded representation of the present audio signal sample and the encoded enhancement representation of the previous audio signal sample to a user.