Statistical Frequency Response Display for Sound System Design
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Solution Overview
Problem
Conventional sound system design and simulation methods fail to provide a comprehensive understanding of frequency response throughout a listening area, as they do not consolidate frequency responses from multiple sample points into a single display, limiting the prediction and evaluation of sound system performance.
Innovation Solution
A method and system that process coverage map data to compute frequency response data for each sample point, accumulate it into distributions, and generate a statistical frequency response display, which represents the probability of achieving a given sound pressure level at a given frequency, using histograms normalized by the highest occurrence, and dynamically updates the display in response to changes in the sound system design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional sound system design methods display frequency response at single locations, then individual measurement accuracy is maintained, but comprehensive understanding of the entire listening area is lost
Solution Approach 1:
The patent combines multiple frequency response measurements from different sample points across the listening area into a single consolidated display. The coverage map is divided into multiple samples, each contributing frequency response data that is accumulated into histograms showing the distribution of sound pressure levels across the entire area, thereby merging individual measurements into comprehensive spectral statistics.
Solution Approach 2:
The patent adds a statistical dimension to frequency response analysis by creating histograms that show not just the frequency response values but also their probability distributions. This transforms single-point frequency response data into multi-dimensional spectral statistics that reveal the likelihood of achieving certain sound pressure levels across different frequencies throughout the listening area.
2Loss of information
If multiple frequency response measurements are taken across the listening area, then comprehensive spectral statistics are obtained, but data complexity and processing requirements increase
Solution Approach 1:
The patent segments the listening area into multiple discrete sample points on a coverage map, allowing frequency response measurements to be taken at each location independently. This segmentation enables systematic collection of spectral data across the area while organizing the complexity into manageable units that can be processed individually and then aggregated into statistical distributions.
3Loss of information
If detailed frequency response data from all sample points is displayed, then complete spectral information is provided, but ease of interpretation is reduced
Solution Approach 1:
The patent uses color-coded histograms to represent different probability levels of achieving certain sound pressure levels at various frequencies. By mapping probability distributions to visual color variations, the system enables quick interpretation of spectral statistics, allowing users to immediately identify frequency ranges where sound pressure levels consistently meet targets versus those with high variability.
Data Source
AI summary
A system and method are provided for displaying a frequency response for a sound system design. Coverage map data is processed for a listening area. The coverage map data comprises a plurality of samples. Frequency response data is computed for each sample. The frequency response data is accumulated into a plurality of distributions. A statistical frequency response display is generated based on the distributions.