Soundsort: acoustic-ml system for metal scrap sorting
SoundSort leverages acoustic signatures and machine learning for rapid, non-invasive metal scrap sorting, distinguishing between ferrous and non-ferrous metals and identifying anomalies to improve quality control and yield prediction.
Overview
SoundSort is an innovative technology that integrates acoustic analysis with machine learning to revolutionize metal scrap sorting. By analyzing the acoustic response patterns of metal scraps through controlled impulse excitation, SoundSort accurately distinguishes between ferrous and non-ferrous materials. This rapid, non-invasive system also identifies anomalies such as rust, coatings, and contaminants, significantly enhancing quality control and yield prediction in metal recycling processes.
Technical specifications
Key features:
- Utilizes spectral acoustic analysis to capture unique resonant frequencies of metal scraps.
- Integrates machine learning algorithms (e.g., CNN, SVM, Random Forest) for material classification based on acoustic signatures.
- Employs precision electromagnetic strikers and high-sensitivity microphone arrays for impulse excitation.
- Capable of real-time analysis with a comprehensive sound signature database.
- Designed for seamless integration into existing scrap handling workflows with contact-minimal testing.
- Provides immediate composition analysis and yield projections through real-time feedback systems.
Technology readiness level
SoundSort is currently at Technology Readiness Level 4, with a prototype system in development. Future validation will involve field testing to assess performance metrics like accuracy and integration within operational environments. The system is designed to scale across entire recycling processes after refinement based on feedback from real-world applications.
About University of Wisconsin, Milwaukee
University of Wisconsin–Milwaukee is a comprehensive public research university in the state’s largest metro, pairing broad academic breadth with an applied, urban mission. Industry engages through an innovation campus and research park that co-locate university labs with startups and corporate teams, plus shared-use core facilities. Its location puts partners near a major regional medical center and within a leading freshwater and advanced manufacturing cluster, enabling pilots, internships, and joint development. Research is supported by competitive federal funding from agencies such as NSF, NIH, and DOE. A dedicated technology transfer office and affiliated foundation manage IP, licensing, corporate agreements, and seed funding to accelerate commercialization.
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