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Course Coordinated by
IIT Kanpur
NPTEL
>>
Courses
>>
Mechanical Engineering
>> NOC:Fundamentals of Acoustics (Video) >>
Lesson 1: Course Overview
Question in Lecture
Week 01: Intro and terminology
Lesson 1: Course Overview
Lesson 2: Introduction
Lesson 3: Nature Of Sound
Lecture 4: The Decibel scale
Lesson 5: Key Terms In Acoustics
Lesson 6: Adding Decibels
Week 02: Concept Review
Lesson 1: Important Mathematical ConceptsComplex Algebra
Lesson 2: Important Mathematical ConceptsComplex Time Signals
Lesson 3: Important Mathematical ConceptsTransfer Function
Lesson 4: Important Mathematical ConceptsPole Zero Plot
Lesson 5: Important Mathematical Concepts  Bode Plot For Simple Pole
Lesson 6: Important Mathematical Concepts  Bode Plot For Simple Zero
Week 03: Wave equation
Lesson 1: Bode Plots (Magnitude) for Complex Transfer Functions
Lesson 2: Momentum Equation for 1D Sound Propagation
Lesson 3: Continuity Equation for 1D Sound Propagation
Lesson 4: Gas Law for 1D Sound Propagation
Lesson 5: 1D Wave Equation
Lesson 6: Solution for 1D Wave Equation
Week 04: Transmission line equations
Lesson 1: Waveguide
Lesson 2: Transmission Line Equations Part I
Lesson 3: Transmission Line Equations  Part II
Lesson 4: Transmission Line Equations  Part III
Lesson 5: Transmission Line Equations  Part IV
Lesson 6: Transmission Line Equations  Part V
Week 05: 1D Waves
Lesson 1: Instantaneous Power
Lesson 2: Instantaneous Power in a LR Circuit
Lesson 3: Power Factor, and Acoustic Power
Lesson 4: Power Flow into an Infinitely Long Tube
Lesson 5: Point Sources of Sound
Lesson 6: Relations for Outward Travelling Spherical Acoustic Wave
Week 06: Power and spherical waves
Lesson 1: Specific Acoustic Impedance for a Closed Tube
Lesson 2: Specific Acoustic Impedance for an Open Tube and an Infinitely Long Tube
Lesson 3: Specific Acoustic Impedance for a Tube with Imperfect Termination
Lesson 4: Kundt’s Tube
Lesson 5: Volume Velocity
Lesson 6: Comparison of Impedances for a Radially Propagating Wave and a Planar Wave
Week 07: Spherical waves and interference
Lesson 1: Interference of sound sources part I
Lesson 2: Interference of sound sources part II
Lesson 3: Interference of sound sources part III
Lesson 4: Interference of sound sources part IV
Lesson 5: Directivity
Lesson 6: Complex power, pressure and velocity for a spherical source
Week 08: Directivity and mufflers
Lesson 1: Noise reduction  Mass Attenuation Method
Lesson 2: Noise Reduction  Pressure Ratio
Lesson 3: Noise Reduction  Velocity of Wall
Lesson 4: 3 Media Problem  Introduction
Lesson 5: 3 Media Problem  Apply Boundary Conditions
Lesson 6: 3 Media Problem  Special cases
Week 09: Sound in rooms
Lesson 1:Mufflers
Lesson 2:Designing of Reactive Mufflers
Lesson 3:Designing of Dissipative Mufflers
Lesson 4:Time and Frequency Domain Representation of a Signal
Lesson 5:Fourier Series
Lesson 6:Fourier Series
Week 10: Reverb time and FFT
Lesson 1:Fourier Transform
Lesson 2:Fourier Transform
Lesson 3:Fourier Transform
Lesson 4:Discrete Fourier Transform (DFT)
Lesson 5:Discrete Fourier Transform (DFT)
Lesson 6:Discrete Fourier Transform (DFT)
Week 11: Weighting and loudness
Lesson 1: Measuring Sound Signals
Lesson 2:Microphones
Lesson 3:Microphones
Lesson 4:Weighting
Lesson 5: Loudness
Lesson 6:Loudness
Week 12: Miscellaneous topics and closure
Lesson 1: Octave Band Analysis  Part I
Lesson 2: Octave Band Analysis – Part II
Lesson 3: Octave Band Analysis – Part III
Lesson 4: Reverberation Time
Lesson 5: Calculation of Reverberation Time and Sound Transmission Class (STC)
Lesson 6: Noise Reduction Coefficient (NRC)
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