18511025. THREE-DIMENSIONAL AUDIO SIGNAL CODING METHOD AND APPARATUS, AND ENCODER simplified abstract (Huawei Technologies Co., Ltd.)

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THREE-DIMENSIONAL AUDIO SIGNAL CODING METHOD AND APPARATUS, AND ENCODER

Organization Name

Huawei Technologies Co., Ltd.

Inventor(s)

Yuan Gao of Beijing (CN)

Shuai Liu of Beijing (CN)

Bin Wang of Shenzhen (CN)

Zhe Wang of Beijing (CN)

Tianshu Qu of Beijing (CN)

Jiahao Xu of Beijing (CN)

THREE-DIMENSIONAL AUDIO SIGNAL CODING METHOD AND APPARATUS, AND ENCODER - A simplified explanation of the abstract

This abstract first appeared for US patent application 18511025 titled 'THREE-DIMENSIONAL AUDIO SIGNAL CODING METHOD AND APPARATUS, AND ENCODER

Simplified Explanation

The patent application describes a method for coding three-dimensional audio signals using representative virtual speaker sets.

  • Method involves determining correlation between current frame and virtual speaker set from previous frame.
  • Encoder checks if correlation satisfies reuse condition for virtual speaker set from previous frame.
  • Current frame is encoded based on virtual speaker set from previous frame if reuse condition is met.
  • Virtual speaker in the set is used for encoding the previous frame of the audio signal.

Potential Applications

This technology can be applied in virtual reality audio systems, gaming consoles, streaming services, and audio editing software.

Problems Solved

1. Efficient coding of three-dimensional audio signals. 2. Improved audio quality and spatial representation. 3. Reduction in data storage and transmission requirements.

Benefits

1. Enhanced user experience with immersive audio. 2. Lower bandwidth consumption for streaming services. 3. Simplified encoding process for audio content creators.

Potential Commercial Applications

Enhancing Virtual Reality Audio Experiences


Original Abstract Submitted

A three-dimensional audio signal coding method, apparatus, and encoder are described. The method includes, after obtaining a first correlation between a current frame of a three-dimensional audio signal and a representative virtual speaker set for a previous frame, the encoder determines whether the first correlation satisfies a reuse condition, where the first correlation is used to determine whether to reuse the representative virtual speaker set for the previous frame when the current frame is encoded. The method further encodes the current frame based on the representative virtual speaker set for the previous frame when the first correlation satisfies the reuse condition, to obtain a bitstream. A virtual speaker in the representative virtual speaker set for the previous frame is a virtual speaker used for encoding the previous frame of the three-dimensional audio signal.