Dynamic Sound Region Division for Real-Time Playback
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Solution Overview
Problem
Existing signal processing systems face inefficiencies in processing and generating playback signals from multiple areas divided within a space, particularly when real-time playback is required, as they struggle to manage processing loads effectively and maintain sound fidelity.
Innovation Solution
A signal processing apparatus that includes an acquisition unit for collecting sound signals, an identification unit to determine object positions, and a generation unit to divide the sound collection region into areas based on identified positions, dynamically adjusting the number of areas based on processing load and sound significance to optimize real-time playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the sound collection target region is divided into a large number of areas to maintain high sound fidelity for all regions, then the sound quality is improved, but the processing load increases and real-time playback cannot be achieved
Solution Approach 1:
The patent applies dynamics by making the number of divided areas variable rather than fixed. The generation unit dynamically adjusts the number of divided areas based on real-time processing load conditions and sound significance. When processing load is high, the system reduces the number of divided areas to maintain real-time playback capability. When processing load is low or sound significance is high, the system increases the number of divided areas to maintain high sound fidelity. This dynamic adaptation resolves the contradiction between sound fidelity and processing speed.
2Measurement precision
If the sound collection target region is divided into many small areas to capture all significant sounds, then the measurement precision is improved, but the device complexity and processing burden increase
Solution Approach 1:
The patent applies local quality by differentiating the processing applied to different regions based on sound significance. The identification unit identifies regions containing significant sounds, and the generation unit generates acoustic signals with appropriate division only for those identified regions. Non-significant regions are either merged into broader areas or processed with lower resolution. This selective, localized approach to area division maintains high measurement precision for important sound sources while reducing overall system complexity by avoiding uniform fine-grained division of the entire space.
3Productivity
If real-time playback is prioritized by reducing the number of divided areas, then the processing efficiency is improved, but the sound fidelity for certain regions deteriorates
Solution Approach 1:
The patent applies feedback by continuously monitoring processing load conditions and sound significance information, then using this feedback to adjust the number of divided areas in real-time. The generation unit receives feedback about current processing capacity and sound distribution, and dynamically reconfigures the area division accordingly. This feedback mechanism ensures that when real-time playback is critical, the system reduces area division to maintain timing, while when fidelity is more important, the system increases division resolution. The feedback loop resolves the contradiction by allowing the system to adapt its precision level based on current operational requirements.
Data Source
AI summary
A signal processing apparatus includes: an acquisition unit configured to acquire a sound collection signal based on collection of sounds in a sound collection target region by a plurality of microphones; an identification unit configured to identify a position or a region corresponding to an object in the sound collection target region; and a generation unit configured to generate a plurality of acoustic signals corresponding to a plurality of divided areas obtained by dividing the sound collection target region based on the identified position or the identified region, using the acquired sound collection signal.