Resumen de Nonlinear sound reverberation in enclosures
Antonio Moreno, Rosa María Rodríguez Alves, María José Fernández
A model on nonlinear sound reverberation of enclosures will be presented. The classical statistical theory of sound propagation in enclosures has been enlarged to include non linear excitation signals. Numeric computations as well as experimental results indicate reverberation times shorter than under linear conditions. An equation relating reverberation time under nonlinear conditions with reverberation time under linear conditions through an intensity nonlinear parameter has been derived. Some repercussions on experimental room acoustic studies (actual and reduced scale room models) will also be commented.
