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Basics of Noise and Its Measurements
Online
8 Weeks
Free Quick Facts
| Medium Of Instructions | Mode Of Learning | Mode Of Delivery |
|---|---|---|
| English | Self Study | Video and Text Based |
Courses and Certificate Fees
| Certificate Availability | Certificate Providing Authority |
|---|---|
| yes | IIT Kanpur |
The Syllabus
- Introduction
- Vibration versus Waves
- Nature of Sound
- The Decibel Scale
- Some Key Terms
- Adding Decibels
- Modeling Sound Propagation
- The Momentum Equation
- The Continuity Equation & The Gas Law
- 1-D Wave Equation
- General Solution for 1-D Wave Equation
- Complex Time Signal & Transfer Functions
- Transmission line equations
- Planar Waves in Closed Tubes
- Planar Waves in 1-D Open Tubes
- A Semi-Infinite Tube and Overall Summary
- 1-D Tubes with Imperfect Terminations
- Measuring Impedance Through Kundt’s Apparatus
- Classification of Microphones
- Classification of Microphones- Continuation
- Classification of Microphones by Application
- Microphone Sensitivity
- Microphone Sensitivity- Continuation
- Selecting the Right Microphone
- Fourier Series Expansion
- Fourier Series Expansion - Continuation
- Fourier Integral
- Fourier Integral - Continuation
- Fourier Transform
- Fourier Transform - Continuation
- Discrete Fourier Transform (DFT)
- Discrete Fourier Transform (DFT)- Continuation
- DFT: Calculating Frequencies and Padding
- DFT: Influence of Duration and Sampling frequency on resolution
- FFT and Inverse FFT
- Considerations while deciding instrumentation
- Considerations while selecting instruments for noise measurements
- Measuring impedance through two microphone method
- Designing an impedance measurement tube
- Octave band analysis
- Calculating results in octave bands
- Weighting
- Short time Fourier transforms (STFT)
- Spectrograms
- Reverberation time
- Anechoic rooms
- STC, NRC and sound attenuation
- Reverberant rooms