Resonator-Resonator Banjo – an Adventure in Amateur Lutherie and a Lesson in Musical Acoustics
David Politzer · CaltechAUTHORS (California Institute of Technology) · 2017
An internal resonator is fitted to the inside of a resonator banjo. From the perspective of simple acoustics theory, there is nothing new here beyond previous separate analyses of resonator backs and internal resonators. Their linear effects simply add (or multiply) as sound filters or transfer functions. However, the effect of the internal resonator on the resonator-back sound, while audible, is subtle and certainly a matter of taste. (Recorded sound samples are included.)