Implementation of Sound Source Localization System Based on LabVIEW

Abstract

This paper uses LabVIEW as a software platform combined with the PXIe-4497 sound and vibration acquisition card to design a sound source localization system. Using the sounding device as sound source, the data is received by the microphone array. After the processing of the sound source localization system, the sound image is added with the video to achieve the locating of the sound source. The system consists of three modules: sound pressure data acquisition module, video acquisition module and data processing module. The sound pressure data acquisition module is programmed by using the DAQmx API function, the video acquisition module is based on the IMAQdx function, and the data processing module uses the phase-shift sum beamforming algorithm. The design of this system can provide practical references for future applications such as noise detections.