Instrument makers tune pipes by flaring ends or adjusting bore shape
Evidence
In order to compensate for these slight variations in the frequencies of the modes produced by the presence of open and closed tone holes, alterations can be made to the shape of the pipe. These might include flaring the open end or adding a tapered section or small local voicing adjustments by enlarging or constricting the pipe, which on a wooden instrument can be achieved by reaming out or adding wax, respectively (e.g., Nederveen, 1969). — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1219
Categorization
- XREF: Connects to how instrument makers (e.g., organ voicers) manually voice pipes — practical craft knowledge that complements the theoretical psychoacoustic frame. — connects to: Instrument makers shape bore profiles to tune woodwind modes around tone holes — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1225; A local bore constriction can tune individual pipe modes separately — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1225; Local bore changes tune instrument modes by their position relative to pressure nodes (+2 more)
Broader Connections
- Instrument makers shape bore profiles to tune woodwind modes around tone holes
#expands(0.85) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1225 - Pipe bore constriction shifts mode frequencies depending on standing-wave node position
#expands(0.84) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1222 - A local bore constriction can tune individual pipe modes separately
#expands(0.82) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1225 - Local bore changes tune instrument modes by their position relative to pressure nodes
#expands(0.80) - Pipe length sets pitch while diameter and material shape harmonic strength
#qualifies(0.72)