18603770. METHOD AND APPARATUS FOR CALCULATING DOWNMIXED SIGNAL AND RESIDUAL SIGNAL simplified abstract (HUAWEI TECHNOLOGIES CO., LTD.)
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METHOD AND APPARATUS FOR CALCULATING DOWNMIXED SIGNAL AND RESIDUAL SIGNAL
Organization Name
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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.
