Kouhei Sumi Tatsuya Kawahara Jun Ogata Masataka Goto Acoustic event detection for spotting "hot spots" in podcasts. 1143-1146 2009 INTERSPEECH https://doi.org/10.21437/Interspeech.2009-333 conf/interspeech/2009 db/conf/interspeech/interspeech2009.html#SumiKOG09