Lehr’s paper on the theory of bell tuning

This paper, published in translation in Rossing’s book¬†Acoustics of Bells¬†is of interest for a number of reasons. Most importantly, it explains the physical processes involved in bell tuning and in particular where on the inside of the bell the tuner removes metal to tune particular partials. This information is derived from actual measurements on bells. […]

Read More… from Lehr’s paper on the theory of bell tuning

What note do we hear when a bell rings?

Almost all musical instruments (such as pianos, organs, orchestral instruments and the human voice) have sounds that contain a range of frequencies f, 2f, 3f, 4f and so on where f is the lowest frequency in the sound. The pitch or note we asssign to the sound corresponds to the frequency f. Frequencies with this regular arrangement are called harmonic. […]

Read More… from What note do we hear when a bell rings?

The musical sound quality of church bells

It is now quite easy (using Wavanal or a general purpose spectrum analysis program) to ascertain the partial frequencies for church bells from recordings of them. Interpretation of these tuning figures is a different matter. Research recently completed as part of my PhD has shed new light on how the sound quality of bells is […]

Read More… from The musical sound quality of church bells