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AssigneeBeijing Xiaomi Mobile Software Co., Ltd.
InventorsBin WANG, Xin WU, Weijie WANG
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A method for extending a frequency band of an audio signal, which is performed by a decoding device and includes: receiving a bit stream sent by an encoding device, and obtaining a decoded audio frequency domain signal by decoding the bit stream; and in response to a highest frequency point with a bit allocation in the audio frequency domain signal being lower than a starting frequency point of a preset bandwidth extension frequency band, or a frequency band with a bit allocation in the audio frequency domain signal being smaller than a preset bandwidth extension starting frequency band, predicting a frequency spectrum signal between the highest frequency point with the bit allocation and a highest frequency point of the preset bandwidth extension frequency band based on a frequency spectrum signal within a predetermined frequency band range or a predetermined frequency point range in the audio frequency domain signal.
A method for extending a frequency band of an audio signal, performed by a decoding device, comprising:
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A communication apparatus, comprising:
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A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor, cause the processor to perform:
Dependencies are inferred from the claim text.