Vibroacoustic reciprocity principle in examination of musical instruments

An application of the Reciprocity Principle for
investigating certain acoustic parameters of the contrabass was presented in the
paper. By means of direct measurements the vibroacoustic transfer function
between the force occurring in the bridge of the contrabass and the acoustic
pressure in the observation point was obtained. By means of reciprocity
measurements the vibroacoustic transfer function between the volume velocity of
the point sound source and the velocity of vibration of the element of the
contrabass bridge was obtained. The compatibility of those transfer functions as
well as the usefulness of the reciprocity method in acoustic examinations were
assessed. Spectra of some sounds emitted by the contrabass were determined.