Sound Source Tracking via Tone Color Segmentation
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Solution Overview
Problem
Current sound source tracking techniques struggle to accurately identify and locate specific sound sources among multiple sources, particularly in noisy environments, and lack the ability to differentiate between individuals based on tone colors.
Innovation Solution
A sound source tracking apparatus and method utilizing a vibration unit with vibrators to separate ambient sounds into individual sounds based on tone colors, determining a target sound source by comparing output waveforms and intensities, and using a processor to calculate relative and absolute locations, with optional communication and display interfaces for outputting the results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional sound source tracking techniques are used to detect sound source locations, then the basic location detection function is achieved, but the ability to accurately identify specific sound sources among multiple sources and differentiate based on tone colors is insufficient
Solution Approach 1:
The patent segments the ambient sound into multiple individual sounds by analyzing output waveforms from multiple vibrators. Each vibrator responds to different frequency components, allowing the system to separate and identify individual sound sources based on their unique tone color signatures, thereby improving identification accuracy among multiple sources.
Solution Approach 2:
The patent changes the parameter of tone color analysis by generating tone color information from vibrator output waveforms and comparing them against stored target tone colors. This parameter-based differentiation enables precise identification of specific sound sources (such as a target person's voice) among multiple concurrent sound sources.
2Measurement precision
If multiple vibrators are used to separate individual sounds based on tone colors, then the precision of sound source differentiation is improved, but the device complexity increases
Solution Approach 1:
The patent employs multiple vibrators that mechanically vibrate in response to ambient sounds. Each vibrator's mechanical response to different frequency components generates distinct output waveforms, enabling tone color differentiation. This mechanical vibration approach provides a physical basis for separating individual sounds without requiring complex electronic filtering systems.
3Measurement precision
If the processor separates ambient sound into individual sounds and determines target sound sources, then the accuracy of locating specific sound sources is improved, but the processing time and computational complexity increase
Solution Approach 1:
The patent implements preliminary action by pre-storing tone color information of target sound sources in memory before actual sound source tracking begins. When ambient sounds are captured, the processor can immediately compare incoming tone color data against the pre-stored references, significantly reducing processing time compared to analyzing all possible sound sources from scratch.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively tracks and locates specific sound sources and acquaintances by distinguishing between individual sounds based on tone colors, providing accurate directional and distance information, enhancing the precision and usability of sound source tracking in various applications.
Implementation Method 1
a vibration unit including vibrators configured to vibrate in response to an ambient sound
Data Source
AI summary
Provided is a sound source tracking apparatuses including a vibration unit including vibrators configured to vibrate in response to an ambient sound, the ambient sound including individual sounds, and a processor configured to separate the ambient sound into individual sounds, to determine a target individual sound having a target tone color among the individual sounds, and to obtain a relative location of a target sound source that generates the target individual sound.