Lecture Hall Acoustics.
P.I.R.A #: 3C40.10
Illustrates: Nodes.
Description: Two speakers emit a continuous tone. Students walk around until they find a node.
Size: 12" h x 25-30' w
Notes: Separate speakers by at least 25 feet. Tone should be a low frequency for best results.
Hazard: None.
Condition: Good.
Instructor Comments
