ABNORMAL SOUND DETECTION LEARNING DEVICE, ACOUSTIC FEATURE VALUE EXTRACTION DEVICE, ABNORMAL SOUND SAMPLING DEVICE, AND METHOD AND PROGRAM FOR SAME

摘要

The abnormal sound detection learning device according to the present invention includes a first acoustic feature value extraction unit for extracting an acoustic feature value of a normal sound on the basis of normal sound learning data using an acoustic feature value extraction function, a normal sound model updating unit for updating a normal sound model using the extracted acoustic feature value, a second acoustic feature value extraction unit for extracting an acoustic feature value of an abnormal sound on the basis of a simulated abnormal sound and extracting an acoustic feature value of a normal sound on the basis of normal sound learning data using the acoustic feature value extraction function, and an acoustic feature value extraction function updating unit for updating the acoustic feature value extraction function using the extracted abnormal sound acoustic feature value and normal sound acoustic feature value, and the abnormal sound detection learning device repeats the processing of the units described above.