CPC G10L 19/008 (2013.01) [G10L 19/167 (2013.01); G10L 21/038 (2013.01); H04R 3/005 (2013.01); H04R 3/12 (2013.01); H04S 1/007 (2013.01); H04S 5/02 (2013.01); G10L 19/0204 (2013.01); H04S 2400/15 (2013.01); H04S 2420/07 (2013.01)] | 36 Claims |
1. A device comprising:
an encoder configured to:
identify a non-reference target channel based on temporal shift values in a current frame;
generate a high-band portion of the non-reference target channel;
generate a synthesized non-reference high-band channel based on a non-reference high- band excitation corresponding to the non-reference target channel;
generate one or more spectral mapping parameters based on a maximum-likelihood measure applied to the synthesized non-reference high-band channel and the high-band portion of the non-reference target channel;
apply the one or more spectral mapping parameters to the synthesized non-reference high- band channel to generate a spectrally shaped synthesized non-reference high-band channel; and
generate an encoded bitstream based on the one or more spectral mapping parameters and the spectrally shaped synthesized non-reference high-band channel.
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