| 摘要 |
<p>A noise restraining technology which mutes the sound output and changes over a reproduction speed in case of the moving picture having a high degree of coincidence continues. A sound signal control device includes a change determining unit determining a change of a reproduction speed of input data containing a moving picture signal and a sound signal; a changeover detecting unit detecting, as a changeover timing, a period in which a degree of coincidence of a moving picture is equal to or larger than a predetermined value when the change determining unit determines the change to a different reproduction speed during the reproduction; a reproducing unit reproducing a sound and the moving picture based on the input data and, when the change determining unit determines the change of the reproduction speed, changing over the reproduction speed at the changeover timing; and a sound control unit muting a sound output based on the sound signal at the changeover timing.</p> |
