Audio Processing Combining Phase Shift and Gain Adjustment
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Solution Overview
Problem
Conventional audio processing techniques are inadequate in creating an immersive three-dimensional sound experience, particularly for higher frequencies, as they rely solely on phase shifting, which limits the immersive effect and fails to effectively process higher frequency components.
Innovation Solution
The system modifies audio files by combining phase shifting and gain adjustment of various frequency portions, allowing for increased phase shifting effects and enhanced three-dimensional sound perception across both lower and higher frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If phase shifting alone is used to create immersive sound, then the method is simple, but the immersive effect is limited and higher frequencies are not effectively processed
Solution Approach 1:
The patent combines phase shifting with gain adjustment to create a more effective immersive sound experience. By merging these two processing techniques, the system achieves better three-dimensional sound perception while maintaining reasonable processing complexity. The gain adjustment component compensates for the limitations of phase shifting alone, particularly for higher frequency processing.
Solution Approach 2:
The system dynamically adjusts multiple parameters including phase shift values and gain factors across different frequency ranges. By changing these parameters adaptively, the system optimizes the immersive sound effect for both lower and higher frequencies, resolving the contradiction between processing simplicity and sound quality effectiveness.
2Device complexity
If conventional audio processing is used, then the system is simple, but it fails to effectively process higher frequency components
Solution Approach 1:
The audio processing system segments the frequency spectrum into different ranges (lower frequencies and higher frequencies) and applies specialized processing to each. This segmentation allows the system to accurately process higher frequency components that were previously handled inadequately, while keeping the overall system architecture manageable through modular design.
Solution Approach 2:
The patent applies different processing characteristics to different frequency bands. Local quality adjustment ensures that higher frequencies receive enhanced processing attention compared to conventional uniform processing, improving frequency processing accuracy without requiring complete system redesign.
3Reliability
If phase shifting is increased to enhance immersive effect, then three-dimensional sound perception improves, but processing complexity and potential audio artifacts increase
Solution Approach 1:
The gain adjustment acts as an intermediary element between phase shifting and the final audio output. It mediates the effects of phase shifting by controlling the amplitude characteristics, thereby enhancing three-dimensional sound perception while reducing the likelihood of audio artifacts that would result from excessive phase shifting alone.
Solution Approach 2:
The audio processing system functions as a composite treatment, combining phase shifting with gain adjustment in a synergistic manner. This composite approach achieves superior three-dimensional sound perception compared to either technique alone, while the combined processing remains more manageable than maximum phase shifting alone would be.
Data Source
AI summary
Systems and methods operate on multi-channel audio content having audio content spanning a plurality of frequency bands. The process can be configured to analyze audio content to identify one or more frequency bands of the plurality of frequency bands associated with a first channel having a signal level below a predetermined threshold; increase the gain of the identified frequency band(s) in the first channel; altering the gain of the identified frequency band(s) in the second channel relative to the first channel; phase shifting the first channel relative to the second channel to create modified first and second channels; creating a master channel signal comprising the modified first and second channels; separating the master channel signal into a plurality of frequency bands; and processing each frequency band in the master channel with an audio compressor to adjust attack and release times of master channel signals in multiple frequency bands.