Yamaha Acoustic Engineering Program - 3. Sound intensity, loudness, and decibels

Course overview

In this course, you'll explore the fundamental concepts of sound intensity, loudness perception, and the all-important unit of measurement: the decibel (dB). Whether you're just starting out or looking to deepen your understanding, this course offers a solid foundation in both the physics and psychology of sound.

What You Will Learn

  • The key difference between sound strength (a physical quantity) and loudness (a psychological perception)
  • How the human ear processes sound — and what defines its limits (dynamic range)
  • The basics of exponents and logarithms, essential for understanding decibels
  • The origin and definition of the decibel
  • CTS RUs: 0.5, CTS-I RUs: 0, CTS-D RUs: 0, ANP RUs: 0
  • Study time: 30 minutes
  • Exams: Multiple choice
  • English
  This course contains AI-generated or AI-modified content, including images and/or narration, for educational and illustrative purposes.

Earn AVIXA RU Credits

After receiving your Certificate of Completion, tap the logo below to visit the AVIXA site. Then, upload your Certificate to receive RU credits.

AVIXA logo: Jump to the AVIXA website.

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