| 摘要 |
<p>Abnormal sound desired for inspection is extracted by inputting NG signal containing the abnormal sound and OK signal not containing this abnormal sound but containing noise that is contained in the NG signal, separating the NG signal and the OK signal each into a stationary component having stationary property, white noise and a nonstationary component having nonstationary property, and removing noise individually from the stationary component, the white noise and the nonstationary component having nonstationary property.</p> |
