Acoustic event detection in real life recordings


Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269

Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /var/www/html/arg/administrator/components/com_jresearch/helpers/publications.php on line 269
Mesaros, Annamaria; Heittola, Toni; Eronen, Antti; Virtanen, Tuomas

Abstract

This paper presents a system for acoustic event detection in recordings from real life environments. The events are modeled using a network of hidden Markov models; their size and topology is chosen based on a study of isolated events recognition. We also studied the effect of ambient background noise on event classification performance. On real life recordings, we tested recognition of isolated sound events and event detection. For event detection, the system performs recognition and temporal positioning of a sequence of events. An accuracy of 24% was obtained in classifying isolated sound events into 61 classes. This corresponds to the accuracy of classifying between 61 events when mixed with ambient background noise at 0dB signal-to-noise ratio. In event detection, the system is capable of recognizing almost one third of the events, and the temporal positioning of the events is not correct for 84% of the time.

Keywords

CASA; sound event detection

Research areas

Year:
2010
Book title:
In Proc. European Signal Processing Conference
Pages:
1267-1271
Address:
Aalborg, Denmark