View source for 18603770. METHOD AND APPARATUS FOR CALCULATING DOWNMIXED SIGNAL AND RESIDUAL SIGNAL simplified abstract (HUAWEI TECHNOLOGIES CO., LTD.)

=METHOD AND APPARATUS FOR CALCULATING DOWNMIXED SIGNAL AND RESIDUAL SIGNAL=


==Organization Name==

[[:Category:HUAWEI TECHNOLOGIES CO., LTD.|HUAWEI TECHNOLOGIES CO., LTD.]]


[[Category:HUAWEI TECHNOLOGIES CO., LTD.]]

==Inventor(s)==

[[:Category:Haiting Li of Beijing (CN)|Haiting Li of Beijing (CN)]][[Category:Haiting Li of Beijing (CN)]]

[[:Category:Bin Wang of Shenzhen (CN)|Bin Wang of Shenzhen (CN)]][[Category:Bin Wang of Shenzhen (CN)]]

[[:Category:Zexin Liu of Beijing (CN)|Zexin Liu of Beijing (CN)]][[Category:Zexin Liu of Beijing (CN)]]

==METHOD AND APPARATUS FOR CALCULATING DOWNMIXED SIGNAL AND RESIDUAL SIGNAL - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18603770 titled 'METHOD AND APPARATUS FOR CALCULATING DOWNMIXED SIGNAL AND RESIDUAL SIGNAL

'''Simplified Explanation:'''
The patent application describes an audio signal encoding method that involves obtaining downmixed and residual signals for a specific frequency band in a frame based on factors from the previous frame.

* The method involves encoding downmixed and residual signals for a preset frequency band in a switching frame.
* Factors from the previous frame are used to determine the downmixed and residual signals in the current frame.
* The signals are obtained based on switch fade-in/fade-out factors and initial signals of the preset frequency band.

'''Key Features and Innovation:'''
* Encoding downmixed and residual signals for a specific frequency band in a switching frame.
* Utilizing factors from the previous frame to determine signals in the current frame.
* Incorporating switch fade-in/fade-out factors for signal encoding.

'''Potential Applications:'''
The technology can be applied in audio signal processing, multimedia systems, and communication devices.

'''Problems Solved:'''
The method addresses the efficient encoding of audio signals in switching frames, improving signal quality and compression.

'''Benefits:'''
* Enhanced audio signal encoding efficiency.
* Improved signal quality in multimedia applications.
* Better compression of audio data.

'''Commercial Applications:'''
The technology can be utilized in audio streaming services, video conferencing platforms, and digital audio workstations, enhancing the overall user experience.

'''Questions about Audio Signal Encoding:'''
1. How does the method improve the efficiency of audio signal encoding?
2. What are the potential applications of this technology in multimedia systems?

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==Original Abstract Submitted==

An audio signal encoding method is provided. According to the method, if a current frame is a switching frame, a to-be-encoded downmixed signal and a to-be-encoded residual signal of the subband corresponding to the preset frequency band in the current frame are obtained based on a switch fade-in/fade-out factor of a previous frame, an initial downmixed signal and an initial residual signal of the preset frequency band of the current frame.



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