Acoustics

The course begins with the basics of sound, sound sources, and human perception. It then explores the relationship between the source of sound and the listener in three different scenarios: source and listener outdoors, source and listener in a room, and source and listener in separate rooms. These scenarios provide comprehensive coverage of the principles relevant to music performance, recording, and mixing.

Each week, you will be assigned acoustical problems to solve. Note that the course explores a number of mathematical concepts. These concepts will be reviewed before you are required to use them for the first time. The goal of the course is to enable you to predict and analyze the acoustical qualities of both indoor and outdoor environments, so that you can make informed decisions about the use or design of spaces in which to play, record, and mix.

By the end of this course, you will be able to:

• Relate your experience of sound to the physical attributes of the source and the propagation path between the source and your ears
• Predict and quantify the behavior of sound in rooms, including the effects of reflections and reverberation on the clarity of music and the intelligibility of speech
• Predict and quantify the effects of outdoor environments on sound propagation, including sound barrier walls and other obstacles
• Understand the challenges of small room acoustics and their effects on recording and mixing environments
• Calculate change in sound pressure level relative to distance
• Understand the principles of sound isolation and be able to predict and measure isolation between rooms
• Measure room acoustics parameters using both traditional and state-of-the-art techniques
• Use a handheld sound level meter
• Understand sound absorption
• Understand the basic principles and requirements of vibration isolation and HVAC noise control
• Use your knowledge of these principles to improve the quality of your recordings and the fidelity of your mixing environment