Estimación del tiempo de reverberación a partir de respuestas impulsivas con baja relación señal-ruido

Abstract

In 1965 Schroeder suggested the possibility of measuring the reverberation time directly from the impulsive response. The main weakness of this method, in comparison to the interrupted noise, is that the signal to noise ratio is limited because all the frequencies are measured at the same time. MLS techniques can partially overcome this problem. Additionally, when measuring the impulse response of a room the user has to decide the temporal length of the signal used. In this work a detailed study of the uncertainty in the reverberation time caused by the limited signal to noise ratio is presented, taken into account the role of the length of the impulse response. Moreover, a study of possible data fitting, suggest that under some condition, the reverberation time can be correctly estimated from noisy impulsive responses.

@inproceedings{Redondo2013,
 author = {Javier Redondo and Noé Jiménez and Pablo C. Iglesias},
 booktitle = {Tecniacústica 2013: 44º Congreso Español de Acústica y Encuentro Ibérico de Acústica. Valladolid, Spain. 2 - 4 October},
 doi = {http://www.sea-acustica.es/fileadmin/Valladolid13/AFS-1_008.pdf},
 editor = {Conference proceedings},
 month = {10},
 organization = {Sociedad Española de Acústica},
 pages = {1202-1208},
 series = {Invited},
 title = {Estimación del tiempo de reverberación a partir de respuestas impulsivas con baja relación señal-ruido},
 url = {http://www.sea-acustica.es/index.php?id=667},
 year = {2013}
}