Acoustics 3

Chapters

• Basics III: Sound Field Quantities – Sound Pressure Level & Decibel II
• Sound Pressure Level Examples
• Excursion: Level & Logarithmic Scale
• Distance Law
• Weighted Sound Pressure Level – dB(A), dB(C)
• Insertion: Permissible Exposure Time Guidelines, Threshold of Pain
• Superposition of Oscillations and Waves – Principle of Superposition & Interference
• Phase Difference & Path Difference – Coherent Sound Sources
• Two-Source Interference – Interference Pattern
• Two-Source Interference Experiment
• Superposition of Waves – Beats
• Superposition of Delayed Signals – Comb Filter Effect
• Effects of Comb Filters in the Studio
• Excursus: Calculation of the Frequencies of a Comb Filter
• Solutions to the Exercises
• Test Yourself!
• Acoustics in the Studio II – Monitors in the Room I: Placement
• Early Reflections: Influence on Sound Perception
• Studio Monitors – Reflections & Comb Filter Effects
• Monitoring Levels
• Tutorial: Acoustic Measurements – Part 1: Introduction
• Tutorial: Acoustic Measurements – Part 2: Speaker Calibration
• Theoretical Exam
• Appendix – Numbers, Formulas, Tables
• Table: Sound Pressure Levels
• Note – Frequency – Wavelength Chart, Dyads
• Glossary