Vibration you feel; noise you hear — and often they are the same problem viewed through different sensors. Acoustics & Noise 101 gives you the vocabulary and the measurements to take on noise properly. You will learn what a decibel really is and why the scale is logarithmic, how A-weighting approximates the ear so a dB(A) figure means something for hearing and compliance, and how octave and one-third-octave bands summarise a sound into a shape you can act on.
From there the course moves to diagnosis and control. You will learn to recognise tonal sources such as fan and pump blade-pass frequencies, which tie a noise back to a specific rotating part, and to measure how well a material absorbs sound using an impedance tube. The closing framework is the one every noise problem reduces to: source, path and receiver — quiet the source, break the path, or protect the receiver. With these tools a vague “it’s too loud” becomes a measured, ranked list of what to fix first.