Speaker Output Control Using Main and Sub Control Data
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Solution Overview
Problem
Game sound creators face significant burden in creating separate control data for two-channel and multi-channel sound outputs, as existing methods require new data creation when switching between different speaker setups, leading to inefficiency and increased workload.
Innovation Solution
A sound output device and method that utilizes main control data for primary speakers and sub-control data for secondary speakers, allowing sound data to be output effectively across varying numbers of speakers, including shifting phase outputs to simulate additional channels with fewer speakers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate control data is created for two-channel and multi-channel sound outputs, then sound quality is improved for each configuration, but the workload and time required for sound creation increases significantly
Solution Approach 1:
The patent creates a universal control data structure that can be used across multiple speaker configurations. By defining speaker positions in a standardized coordinate system and using position-based sound output control, the same control data can adapt to different numbers of speakers (two-channel, multi-channel, etc.), eliminating the need to create separate control data for each configuration while maintaining appropriate sound quality.
Solution Approach 2:
The patent changes the approach from creating configuration-specific control data to using parameter-based adaptation. By specifying speaker positions using coordinates and angles, and controlling sound output based on these parameters, the system automatically adapts the sound distribution to match the actual speaker configuration, reducing creation time while preserving sound quality.
2Reliability
If control data is created for a specific number of speakers, then sound output quality is optimized for that configuration, but adaptability to different speaker setups decreases
Solution Approach 1:
The patent establishes a universal control framework where control data is defined in terms of speaker positions rather than fixed channel assignments. This allows the same control data to be applied to different speaker configurations (two-channel, multi-channel, etc.) by mapping the defined positions to the actual physical speakers, achieving both optimized sound quality and configuration adaptability.
Solution Approach 2:
The patent introduces dynamic adaptation by allowing the sound output control to adjust based on the actual speaker configuration. The system determines the number of speakers and their positions, then dynamically controls the sound output to match the actual setup while maintaining the intended spatial sound distribution, enabling the same control data to work across varying configurations.
3Productivity
If existing control data is reused for different speaker configurations, then creation time is reduced, but sound output quality may deteriorate due to mismatched speaker positions
Solution Approach 1:
The patent uses parameter-based speaker position specification (coordinates, angles) to enable accurate mapping of control data to different physical configurations. By defining sound output control in terms of these parameters rather than fixed channel assignments, the system can reuse control data across configurations while maintaining sound quality through proper positional mapping.
Solution Approach 2:
The patent introduces a position mapping mechanism as an intermediary between the control data and the actual speaker output. This intermediary layer translates the universal position-based control data into configuration-specific sound distribution, allowing reuse of control data while maintaining accurate sound positioning and quality across different speaker setups.
Data Source
AI summary
To provide a sound output device capable of preferably outputting, while utilizing control data created based on an assumption that sound data will be output via a certain number of speakers, the sound data via a number of speakers that is larger or smaller than the certain number. The main control data storage unit stores main control data. The first sound output control unit outputs sound data from the one or more main speakers based on the main control data. The sub-control data storage unit stores sub-control data. The second sound output control unit outputs the sound data from the one or more sub-speakers based on the main control data and the sub-control data.