Standing wave node positions let one predict bore-change effects on mode frequencies

Evidence

Knowledge of the position of the pressure and velocity nodes and antinodes for the standing wave modes in a pipe therefore allows the effect on the mode frequencies of a local constriction or enlargement of a pipe to be predicted. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1223

Categorization

• XREF: connects to: Pipe bore constriction shifts mode frequencies depending on standing-wave node position — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1222