Mix Signal Processing Apparatus for Unified Source Control
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Solution Overview
Problem
Current signal processing technologies face limitations in independently processing and controlling mix signals and side information, particularly in multi-channel environments, where specific source signals within a mix signal cannot be controlled individually, and side information is often multiplexed with the mix signal, making independent extraction and domain matching challenging.
Innovation Solution
A method and apparatus that group associated source signals to facilitate unified control and independent transmission of mix signals and side information, allowing for the generation of a remix signal by extracting and matching the domains of mix signals and side information, and modifying side information for reduced information size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mix signal and side information are multiplexed to be transmitted, then transmission efficiency is improved, but it becomes unable to extract the mix signal and side information independently
Solution Approach 1:
The patent divides the transmitted data into separate components: a downmixed signal containing the mix information and a separate side information stream containing metadata about the original source signals. This segmentation allows independent extraction and processing of each component while maintaining transmission efficiency through their coordinated structure.
Solution Approach 2:
The patent introduces an intermediary structure where the downmixed signal serves as a carrier that references the side information, and vice versa. This intermediary relationship enables the system to maintain both compact transmission (through referencing) and independent extractability (through the structured separation), resolving the contradiction between efficiency and operability.
2Reliability
If side information is intactly transmitted, then information accuracy is improved, but information size is considerably increased
Solution Approach 1:
The patent extracts only the essential side information needed for remixing operations from the complete original data set. By taking out only the critical metadata (such as source signal identifiers, mixing parameters, and channel assignments) rather than transmitting all original signal data, the system maintains information accuracy for remixing purposes while significantly reducing the total information size.
Solution Approach 2:
The patent transforms side information into a compressed parameter representation suitable for transmission. Instead of transmitting raw signal data or complete metadata, the system converts side information into essential parameters (mixing coefficients, source identifiers, channel mappings) that preserve the necessary information for accurate remixing while occupying minimal space.
3Adaptability or versatility
If a mix signal and side information are transformed into the same domain, then domain compatibility is improved, but processing complexity is increased
Solution Approach 1:
The patent creates a universal processing framework where the downmixing and side information generation operations are designed to work across multiple domains (time domain, frequency domain). By establishing domain-agnostic processing algorithms and standardized interfaces, the system achieves broad domain compatibility without requiring separate complex processing chains for each domain, thus managing complexity while enhancing versatility.
4Ease of operation
If source signals are grouped for unified control, then ease of control is improved, but individual signal control capability is reduced
Solution Approach 1:
The patent implements a dynamic control structure where source signals are organized into groups that can be controlled collectively through the downmixed signal, while the side information maintains individual signal identifiers and parameters. This dynamic organization allows the system to switch between unified group control and individual signal control as needed, achieving both ease of unified control and adaptability for individual control when required.
Data Source
AI summary
A method and apparatus for processing a signal, and more particularly, to an apparatus for processing a mix signal and method thereof are disclosed, by which a mix signal such as an audio signal and a video signal can be encoded/decoded. The present invention includes receiving at least one of a mix signal and source signals and generating a unified side information corresponding to a unified source signal using the mix signal and the at least one of the source signals, wherein the unified source signal is generated by grouping at least one source signal.