SOUND DETECTING DEVICE, SOUND DETECTING PROGRAM AND PARAMETER ADJUSTING METHOD

摘要

A frame cutout means (71) cuts frames from sample data, which are sound data that are already known to be a sound section or a non-sound section, for individual frames. A feature value calculating means (72) calculates multiple feature values for a frame. A feature value consolidating means (73) calculates a consolidated feature value for the multiple feature values. A determination means (74) determines whether the frame is a sound section or a non-sound section. An error feature value calculating means (75) calculates a first error feature value and a second error feature value using prescribed calculations. A weighting update means (76) updates a weight used in weighting so that the ratio between the first error feature value and the second error feature value will approach a prescribed value.