SPEECH REPRODUCTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a speech reproduction device capable of performing appropriate speed change in compliance with an inputted audio signal while achieving the target time. SOLUTION: The speech reproduction device is provided with; a discrimination means which discriminates a speech section including a speech and a non-speech section not including the speech with respect to an audio signal; a speech content calculation means which calculates the speech content indicating the ratio of the speech section included in the audio signal based on the result discriminated by the discrimination means; a speed ratio calculation means which calculates respectively the speed ratio of the speech section and the non-speech section with respect to the reproduction speed preset in the audio signal based on the speech content in such a manner that the reproduction time of the audio signal becomes a prescribed reproduction time; and a speed change means which is inputted with the audio signal and respectively changes the reproduction speeds of the speech section and non-speech section included in the audio signal based on the speed ratio. COPYRIGHT: (C)2008,JPO&INPIT