Dr. John Doyle is a retired Anesthesiologist at the Cleveland Clinic, Cleveland, Ohio, and an Emeritus Professor of Anesthesiology at the Cleveland Clinic Lerner College of Medicine of Case Western Reserve University. He received his MD degree in 1982 and his PhD degree in Biomedical Engineering in 1986, both from the University of Toronto. He received his Canadian board certification in anesthesia (FRCPC) in 1986 and his American certification in 1989. Dr. Doyle has a long-standing interest in technology in medicine. He is the past president of the Society for Technology in Anesthesia.Dr. Kamran Hassani has been an Associate Professor in the School of Mechanical, Industrial, and Aeronautical Engineering at Witwatersrand University in Johannesburg, South Africa since July 2024. He has served in the Department of Biomechanics of Islamic Azad University, Science and Research Branch for 16 years, including 12 years as head of the department. His field of research is biomechanics and cardiovascular engineering.

• Chapter 1: Introduction to Bioacoustics.- Chapter 2: Physiology of Cardiac and Respiratory Sounds.- Chapter 3: Recording Techniques and Instrumentation.- Chapter 4: Signal Processing Fundamentals.- Chapter 5: Arduino Microcontrollers in Bioacoustics – Getting Started.- Chapter 6: Cardiac Bioacoustical Signal Analysis.- Chapter 7: Respiratory Bioacoustical Signal Analysis.- Chapter 8: Clinical Integration and Case Studies.- Chapter 9: Advanced Topics and Future Directions.- Appendix A: Technical Glossary.- Appendix B: Arduino Reference Guide.- Appendix C: Guide to Advanced Arduino Projects for Bioacoustics.