Acoustic Manipulator Element for Sound Wave Segmentation
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Solution Overview
Problem
Conventional systems fail to enhance the sound experience for guitar players and microphone recording by providing inhomogeneous sound wave emission and difficulty in capturing high-quality sound from loudspeakers.
Innovation Solution
An acoustic manipulator element that splits sound waves into reflected and through components, attenuating specific frequencies by up to 15 dB for wavelengths between 200 Hz and 16000 Hz, allowing for enhanced sound manipulation and simulation through software or hardware components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sound waves are emitted directly from a loudspeaker, then the sound can be heard by listeners, but the sound wave emission is inhomogeneous causing bad impression for the sound source (e.g., guitar player)
Solution Approach 1:
The sound field is segmented into multiple zones using several acoustic manipulator elements positioned at different locations. Each element independently manipulates sound waves in its local zone, collectively achieving homogeneous sound distribution across the entire listening area while preventing direct sound from the loudspeaker from reaching listeners.
Solution Approach 2:
Acoustic manipulator elements serve as intermediary devices between the loudspeaker and listeners. These elements actively manipulate sound waves through reflection, refraction, or absorption, transforming the inhomogeneous direct sound into a homogeneous distributed sound field, thereby eliminating the harmful inhomogeneous emission effect.
2Measurement precision
If a microphone is positioned to capture sound directly from a loudspeaker, then sound can be recorded, but it is difficult to capture high-quality sound
Solution Approach 1:
The sound capture process is segmented into multiple paths: direct sound from the loudspeaker and reflected/diffused sound through the acoustic manipulator elements. The microphone captures this enriched, multi-path sound field, which contains enhanced spatial information and frequency content, improving recording quality without requiring precise positioning.
Solution Approach 2:
The acoustic manipulator elements act as intermediaries that enhance the sound field before it reaches the microphone. By manipulating sound waves through reflection, refraction, or diffusion, these elements create a richer acoustic environment that the microphone can capture more easily, improving recording quality while simplifying microphone placement.
3Ease of operation
If acoustic manipulator elements are added to manipulate sound waves, then sound quality is improved, but device complexity increases
Solution Approach 1:
The acoustic manipulator elements are designed to autonomously manipulate sound waves based on their inherent acoustic properties (reflection coefficients, absorption characteristics, geometric shapes). Once positioned, they automatically perform sound field manipulation without requiring active control systems, power supply, or complex adjustment mechanisms, thereby improving sound quality while limiting complexity growth.
Solution Approach 2:
The system achieves sound quality improvement by changing passive acoustic parameters of the manipulator elements (such as reflection coefficients, absorption rates, and geometric configurations) rather than employing active electronic control. This approach enhances sound manipulation capability while maintaining relatively simple device structure.
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
The acoustic manipulator element improves sound quality by directing desired frequencies to microphones or listeners, reducing shrill sounds and providing a balanced acoustic experience, while allowing for simulation of acoustic environments through software models.
Implementation Method 1
the acoustic manipulator element splits frequency selectively sound waves originating from the acoustic source in a reflected and a through component
Implementation Method 2
the acoustic manipulator element splits frequency selectively sound waves originating from the acoustic source in a reflected and a through component
Implementation Method 3
at least a portion of the acoustic waves of the through component is attenuated by at most 15 dB for acoustic frequencies having a wavelength between 200 Hz and 16000 Hz
Data Source
Figure 1~3b
Figure 3c~8c
Figure 4a~4r
AI summary
According to an exemplary embodiment of the present invention, an acoustic manipulator element is provided. The acoustic manipulator element is arrangable relatively to an acoustic source in a manner that the acoustic manipulator element splits frequency selectively sound waves originating from the acoustic source in a reflected and a through component, wherein at least a portion of the acoustic waves of the through component is attenuated by at most 15 dB for acoustic frequencies having a wavelength between 200 Hz and 16000 Hz compared to the sound waves of the acoustic source.