Acoustic signal analysis involves the examination and interpretation of sound waves produced by a product during its operation or under specific conditions. Analyzing these acoustic signals helps to capture anomalies, ensure consistency, verify structural integrity, and ensures that the product/part meets specifications before reaching the customer. This mitigates scrap, warranty claims, recalls, or lost sales or supplier contracts.

Applications of Acoustic Signal Analysis

In the automotive industry, acoustic signal analysis is used to monitor the sounds generated by motors, engines, transmissions, and other components. For example, each motor-driven subsystem, such as a blower, sunroof, seat, or window has a characteristic sound profile when operating correctly. Deviations from these profiles can indicate issues such as misalignments, wear, or impending failures. It can also result in objectionable noises and complaints from the customer.

Acoustical techniques are also employed to assess the structural integrity of materials. By monitoring the sound waves generated by the growth of cracks or the release of stress, engineers can predict potential failures and ensure the durability and safety of materials used in automotive, aerospace, construction, medical and other critical applications.

Quality Inspection Test Systems

Acoustic-based test systems are often integrated into production lines to provide real-time quality monitoring. These sensors detect deviations in sound patterns, enabling immediate corrective actions and maintaining continuous quality control without interrupting the production process.

Non-Destructive Testing

Acoustic signal analysis is a non-invasive, efficient, and highly effective method for ensuring product quality. As a form of Non-Destructive Testing (NDT) acoustic signal analysis enhances reliability, safety, and customer satisfaction by providing early detection of defects and inconsistencies, thereby preventing potential failures, and maintaining high standards in manufacturing and product performance.

Learn More

Signalysis founding principals and engineers have a wealth of experience in practically applying acoustic signal analysis in product development, problem-solving, and quality inspection.  Contact us to learn more.