| 摘要 |
PROBLEM TO BE SOLVED: To provide a voice switching device capable of reducing unusual feeling when switching occurs between voice signals different in frequency band with each other.SOLUTION: A voice switching device (1) includes: a learning part (11) for learning a background noise model representing a background noise contained in a first voice signal on the basis of the first voice signal, while receiving the first voice signal having a first frequency band; a pseudo noise generation part (14) for generating a pseudo noise representing the noise in a pseudo manner based on the background noise model after a first time point at which the first voice signal is lastly received when the voice signal to be received is switched to a second voice signal having a second frequency band narrower than the first frequency band from the first voice signal; and an overlapping part (15) for overlapping the pseudo noise on the second voice signal after the first time point.SELECTED DRAWING: Figure 3 |
