Audio Signal Routing With Selective Binaural Processing
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Solution Overview
Problem
Existing sound signal processors face complexity in equipment connections and output destination variability, especially when applying binauralization, which can cause discomfort when using loudspeakers.
Innovation Solution
A sound signal processor and control method that enables appropriate processing for each sound signal and outputs them to the correct destination, with the option to enable or disable binauralization based on the output device, avoiding complex equipment connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If binauralization is applied to sound signals for headphone output, then the sense of realism and presence is improved, but discomfort occurs when using loudspeakers
Solution Approach 1:
The system dynamically adjusts the processing applied to sound signals based on the detected output destination. When headphones are detected, binauralization processing is applied to create a sense of realism. When loudspeakers are detected, binauralization is disabled to avoid discomfort. This dynamic adaptation resolves the contradiction by changing the processing state according to the playback device.
Solution Approach 2:
The system changes the processing parameters based on the output destination. The binauralization parameter is enabled when headphones are connected and disabled when loudspeakers are connected. This parameter change allows the same sound signal processor to adapt to different output devices, resolving the contradiction between realism enhancement and discomfort avoidance.
2Manufacturing precision
If multiple conversion equipment are added to process each sound signal appropriately, then the processing accuracy is improved, but the equipment connection complexity increases
Solution Approach 1:
The sound signal processor is designed with multi-functionality to handle different sound signals and apply appropriate processing internally. The single device performs multiple functions including binauralization, tone switching, and signal routing based on the detected output destination. This eliminates the need for multiple separate conversion equipment while maintaining processing accuracy.
Solution Approach 2:
The patent combines multiple processing functions (binauralization, tone switching, signal routing) into a single sound signal processor. By merging these functions that would traditionally require separate equipment, the system achieves accurate processing of each sound signal while avoiding complex equipment connections.
3Adaptability or versatility
If tone switching is implemented to adapt to different output devices, then the adaptability is improved, but the processing complexity increases
Solution Approach 1:
The system performs preliminary detection of the output destination (headphones or loudspeakers) before applying any processing. Based on this detection, the appropriate processing mode is pre-selected: binauralization for headphones, standard processing for loudspeakers. This preliminary action enables adaptability while keeping the actual processing relatively simple.
Solution Approach 2:
The system changes processing parameters based on the detected output destination. When headphones are detected, binauralization parameters are applied; when loudspeakers are detected, standard parameters are used. This parameter-based adaptation provides versatility without requiring complex processing for each device type.
Data Source
AI summary
A sound signal processor and a control method therefor that enable appropriate processing to be applied to each sound signal and the sound signals to be outputted to an appropriate output destination, while avoiding equipment connection complexity. A first processing unit performs first processing on a first sound signal to generate a second sound signal, and outputs the second sound signal to a mix bus, a second processing unit performs second processing on a third sound signal to generate a fourth sound signal, and outputs the fourth sound signal to the mix bus and a first output destination, and the mix bus mixes the second sound signal with the fourth sound signal to generate a fifth sound signal, and outputs the fifth sound signal to a second output destination.