From Piano String Vibrations to the Acoustic Field Radiated by the Soundboard
Mitsuko Aramaki, Philippe Guillemain, Nathalie Hoeb, Alain Roure · University of Michigan Library Repository · 2001
We propose to characterize the relationships between the vibrations and the acoustic radiation of the piano soundboard.For that purpose, we use a signal processing approach.In this context, the purpose of this study is not to describe the mechanical and acoustical phenomena that occur during the sound production.Conversely, we model the influence of the soundboard in the piano sound production by transfer functions between the vibrations of strings at the bridge level and the acoustic field radiated at the level of the ears of the pianist.These transfer functions are estimated from the analysis of experimental signals collected on a grand piano placed in an anechoic room.The accuracy of the analysis method and the obtained results are then validated by the resynthesis of sounds using binaural and transaural techniques.