Audio Signal Segmentation for Spatial Sound Reproduction
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Solution Overview
Problem
Existing audio systems fail to produce a realistic three-dimensional sound effect due to the simple separation of main music and sound echoes between internal and external speakers, lacking the ability to output sound sources from multiple locations.
Innovation Solution
An information processing apparatus that separates a content signal into primary and secondary components, with the primary component being output by an internal speaker and the secondary component transmitted to another apparatus for reproduction, allowing for volume and timing adjustments based on user-defined distance ratios to create a more immersive three-dimensional audio experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the content signal is separated into primary and secondary components with different output locations, then the three-dimensional sound effect is improved, but the device complexity increases
Solution Approach 1:
The audio system segments the content signal into primary and secondary components, assigning different spatial characteristics to each. The primary component is output from the mobile terminal's speaker while the secondary component is transmitted to and output from an external speaker, creating distinct sound sources at different locations to achieve three-dimensional sound effect.
Solution Approach 2:
The mobile terminal acts as an intermediary device that separates the content signal into primary and secondary components, processes them differently, and routes them to appropriate output devices. This intermediary processing enables the creation of multiple virtual sound sources without requiring a complex multi-speaker system at the output end.
2Adaptability or versatility
If multiple sound sources are output from different locations, then the spatial audio capability is improved, but the system complexity increases
Solution Approach 1:
The mobile terminal performs multiple functions: it acts as an audio source, a signal processor that separates content into primary and secondary components, and a wireless transmitter. This multi-functionality allows the system to create spatial audio effects using existing universal devices rather than requiring specialized multi-speaker systems.
Solution Approach 2:
The system adds a spatial dimension to audio output by utilizing two different physical locations (mobile terminal and external speaker) to create virtual sound sources. This transforms a traditionally two-dimensional audio experience into a three-dimensional spatial audio experience by distributing sound sources across different spatial positions.
Data Source
AI summary
An information processing apparatus includes a processor that performs a separate process to separate a content signal into a primary component which is an objective sound and a secondary component which is other than the objective sound, a speaker that outputs the primary component, and a transmitter that transmits the secondary component to another apparatus.