Equilateral Triangular Microphone Array Speech Enhancement with Sound Source Localization
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Resource Overview
This program implements speech enhancement for an equilateral triangular microphone array using delay-and-sum beamforming methodology, while simultaneously achieving sound source localization through spatial coordinate estimation.
Detailed Documentation
This program demonstrates how to enhance speech signals captured by an equilateral triangular microphone array through delay-and-sum beamforming techniques. The implementation calculates precise time delays for each microphone channel based on source position estimation, then aligns and sums the signals to reinforce target speech while suppressing noise and interference. Additionally, the system incorporates sound source localization functionality that triangulates source positions using time-difference-of-arrival (TDOA) measurements between microphone pairs, accurately determining spatial coordinates of sound sources in the array's coverage area. The algorithm includes coordinate transformation modules to handle the equilateral geometry and implements steering vector calculations for optimal beam pattern formation.
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