Georgia State University
Georgia State University: Hyper Physics: The Physics of Loudspeakers
This college-level physics course on acoustics provides a variety of charts and short descriptions of the physics involved in using loudspeakers and audio equipment. Related links.
University of Maryland
University of Maryland: Thinking Problems With Sound
A series of thought-provoking multiple-choice questions from the University of Maryland on the topic of sound and acoustics. One question pertains to the acoustics of a furnished room with two speakers; demands a basic understanding of...
Other
Silcom: Room Acoustics
A detailed discussion on the effect of reflection and absorption of sound waves by walls upon the audio quality of a room. Methods for inspecting the quality of a room are given and discussed.