公开(公告)号：US20250166640A1

公开(公告)日：2025-05-22

申请号：US19026344

申请日：2025-01-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhuo Wang ,  Bin Feng ,  Chunhui Du ,  Fan Fan

IPC: G10L19/008 ,  G10L19/00 ,  G10L19/02 ,  G10L19/032

Abstract: This disclosure discloses an audio encoding/decoding method and apparatus, a storage medium, and a computer program product, and belongs to the audio encoding/decoding field. In this solution, when an audio signal is a dual-channel signal, even if a bitstream includes a left-channel bitstream and a right-channel bitstream, based on a channel decoding mode, the left-channel bitstream is decoded but the right-channel bitstream is not decoded, or the right-channel bitstream is decoded but the left-channel bitstream is not decoded in a decoding process. Therefore, power consumption at a decoder side is reduced when resources at the decoder side are limited. Correspondingly, an encoder side can also sequentially encode left-channel data and right-channel data based on a condition met by the audio signal, rather than necessarily performing encoding in a dual-channel interleaving encoding scheme or a dual-channel deinterleaving encoding scheme.

公开(公告)号：US20250157476A1

公开(公告)日：2025-05-15

申请号：US19026327

申请日：2025-01-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhuo Wang ,  Bin Feng ,  Chunhui Du ,  Fan Fan

IPC: G10L19/02

Abstract: An audio signal processing method and apparatus, a storage medium, and a computer program product are provided. An optimal sub-band division manner is selected from a plurality of sub-band division manners based on a characteristic of an audio signal. In other words, the sub-band division manner has a signal adaptation characteristic, and can adapt to an encoding bit rate of the audio signal. Specifically, a total scale value corresponding to each sub-band division manner is determined based on spectral values of the audio signal in sub-bands obtained through division, a bandwidth of each sub-band, and the encoding bit rate of the audio signal, and an optimal target sub-band division manner is selected based on the total scale value, to obtain an optimal sub-band set. Subsequently, spectral envelope shaping is performed based on a scale factor of each sub-band in the optimal sub-band set, to improve coding effect and compression efficiency.