Patent ID: 11887610
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. An audio decoder, comprising:
one or more processors; and
a memory coupled to the one or more processors and configured to store programming instructions that, when executed by the processor, cause the audio decoder to be configured to:
obtain an encoded bitstream;
perform bitstream demultiplexing on the encoded bitstream to:
obtain a high frequency band parameter of a current frame of an audio signal, wherein the high frequency band parameter comprises a combined location and quantity parameter and either an amplitude or an energy of a tone component in a high frequency band signal of the current frame, and wherein a high frequency band corresponding to the high frequency band signal comprises at least one frequency region;
obtain a second combined location and a quantity parameter in a current frequency region in the at least one frequency region; and
parse the encoded bitstream based on the second combined location and the quantity parameter to obtain a second amplitude parameter or a second energy parameter of the tone component in the current frequency region;

obtain a reconstructed high frequency band signal of the current frame based on the high frequency band parameter; and
obtain an audio output signal of the current frame based on the reconstructed high frequency band signal.