This LabVIEW add-on empowers engineers and researchers to apply advanced beamforming algorithms to data acquired from sensor arrays, facilitating precise sound source localization and acoustic imaging.
The BFDOA Toolkit integrates seamlessly into the LabVIEW environment, providing a suite of virtual instruments (VIs) for implementing standard beamforming techniques. It supports both real-time and offline analysis, making it ideal for applications in acoustics research, noise source identification, and spatial audio processing.
Key Features​
Comprehensive Beamforming Algorithms
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Wideband Beamformer: Delay and Sum (DAS)
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Narrowband Beamformers: Bartlett, MUSIC (Multiple Signal Classification), MVDR (Minimum Variance Distortionless Response)
3D Beam Pattern Visualization
Visualize beam shapes in three dimensions to assess array performance and directivity.
Sound Source Simulation
Simulate acoustic sources to evaluate array configurations and algorithm effectiveness.
Sound Intensity Mapping
Generate spatial maps of sound intensity for detailed acoustic imaging.
Array Geometry Flexibility
Define custom microphone array geometries by specifying sensor coordinates.
Example Projects
Includes ready-to-run examples demonstrating toolkit capabilities and facilitating quick integration.
Use Cases
Acoustic Source Localization
Identify and locate sound sources in environments such as industrial settings, urban areas, or natural habitats.
Noise Control Engineering
​Analyze and mitigate unwanted noise in automotive, aerospace, and manufacturing industries.
Audio Research
Study spatial audio characteristics for applications in virtual reality, teleconferencing, and concert hall acoustics.
Educational Purposes
Serve as a practical tool for teaching beamforming concepts in academic settings.
Requirements
Installation
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Operating System: Windows 10 or later
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LabVIEW Version: LabVIEW 2016 (32-bit or 64-bit) or newer
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Installation: Delivered as a VI Package Manager (VIPM) installer
Development
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Windows Platforms: Full functionality on standard Windows systems
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NI Real-Time Targets: Compatible with National Instruments' real-time hardware for deterministic performance
Integration with Ngene Hardware
The BFDOA Toolkit is designed to work in tandem with Ngene's Microphone Array Daughter Boards (MicArr). These boards offer various configurations, including uniform rectangular, circular, and spiral arrays, providing flexibility for different acoustic applications. Integration enables real-time data acquisition and processing within the LabVIEW environment.
MicArr
Microphone Array Daughter Board
A compact, high-performance microphone array designed for NI sbRIO and myRIO platforms. Available in rectangular, circular, and spiral configurations, MicArr enables real-time acoustic data acquisition and integrates seamlessly with the BFDOA Toolkit for advanced beamforming and sound localization applications.