AUDIO SIGNAL PROCESSING DEVICE, AUDIO SIGNAL PROCESSING METHOD, AND PROGRAM

摘要

An audio signal processing device includes: a time-frequency analysis unit performing a time-frequency analysis of an input audio signal; a base factorization unit inputting learning data that is generated in advance based on an audio signal for learning including a sound from a plurality of sound sources and is made with base frequencies corresponding to the respective sound sources and carrying out base factorization of a time-frequency analysis result to the input audio signal inputted from the time-frequency analysis unit by applying a total base frequency that has the base frequencies corresponding to the respective sound sources combined therein to generate a base activity to the input audio signal; and a command identification unit inputting the base activity from the base factorization unit to carry out command identification by performing an identification process of the inputted base activity.