Holographic Microphone Polar Pattern Visualization
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Solution Overview
Problem
Users face challenges in determining the optimal positioning of a sound source relative to a microphone to ensure effective sound capture, as existing methods rely on audio meters or sound engineers, which can be cumbersome and inefficient.
Innovation Solution
A method and apparatus that utilize holographic projectors to generate a virtual image representing the microphone's sound capture range and polar pattern, providing a visual indication of the sound source's position and alignment for improved sound capture capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If audio meters or sound engineers are used to determine sound capture quality, then measurement precision is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent introduces a camera as an intermediary device that captures images of the sound source and microphone position. These images are then processed to generate visual feedback indicators that simplify the determination of sound capture quality, eliminating the need for complex audio metering or expert sound engineering knowledge.
Solution Approach 2:
The patent replaces the acoustic measurement system (audio meters, human ears) with an optical system (camera-based image processing). This substitution transforms the measurement domain from acoustic to visual, enabling automated and simplified determination of sound capture quality through image analysis rather than complex acoustic measurements.
2Measurement precision
If audio meters or sound engineers are used to determine sound capture quality, then measurement precision is improved, but productivity deteriorates
Solution Approach 1:
The system performs self-service by automatically capturing images, processing them, and generating visual feedback indicators without requiring external sound engineers or complex audio measurement equipment. The automated image-based assessment enables rapid determination of sound capture quality, significantly improving positioning efficiency and productivity.
Solution Approach 2:
By replacing time-consuming acoustic measurement processes with rapid image capture and processing, the system achieves quick assessment of sound capture quality. This optical substitution dramatically reduces the time required for positioning optimization, thereby improving overall productivity.
3Ease of operation
If users manually check sound volume levels to determine positioning, then ease of operation is maintained, but measurement precision deteriorates
Solution Approach 1:
The camera acts as an intermediary that objectively captures the spatial relationship between the sound source and microphone. This visual intermediary provides precise positional information that is more accurate than subjective manual assessment, while the automated processing maintains ease of operation through simple visual feedback.
Solution Approach 2:
The system provides automated visual feedback based on image analysis, indicating whether the sound source is properly positioned relative to the microphone. This feedback mechanism maintains ease of operation while significantly improving measurement precision compared to manual volume checking.
Data Source
AI summary
A method, system, and computer product for providing a visual indication of sound capture capability of a microphone includes receiving data corresponding to a polar pattern and a sound capture range of the microphone from a memory, generating a projection signal based on the data corresponding to the polar pattern and the sound capture range provided from the memory, generating a virtual image based on the projection signal, and projecting the generated virtual image near a sound source. The virtual image provides a visual indication of capability of the microphone to capture a sound generated by the sound source.