title: Ensemble statistics of active and reactive sound intensity in reverberation rooms.
abstract: This paper examines fundamental statistical properties of the active and reactive sound intensity in reverberant enclosures driven with pure tones. The existing theory for sound intensity in a diffuse sound field, which is based on Waterhouse's random wave model and therefore limited to the region of high modal overlap, is extended to the region of low modal overlap by taking account of the random fluctuations of the sound power emitted by the source that generates the sound field. The validity of the extended model is confirmed by experimental and numerical results.
authors.affiliation: Acoustic Technology, Department of Electrical Engineering, Technical University of Denmark, Building 352, DK-2800 Kongens Lyngby, Denmark. fja@elektro.dtu.dk
authors.forename: Finn
authors.initials: F
authors.lastname: Jacobsen
authors.forename: Alfonso Rodríguez
authors.initials: AR
authors.lastname: Molares
mesh_terms: D000162:Acoustics / Q000295:instrumentation; D003198:Computer Simulation; D005160:Facility Design and Construction; D015233:Models, Statistical; D009038:Motion; D009716:Numerical Analysis, Computer-Assisted; D011312:Pressure; D015203:Reproducibility of Results; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors; D014159:Transducers; D014732:Vibration