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    • 5. 发明授权
    • Gated silence removal during video trick modes
    • 在视频特技模式下,门静音消除
    • US06625387B1
    • 2003-09-23
    • US10087183
    • 2002-03-01
    • Ronald Lynn BlairMark Alan SchultzRobert Warren Schmidt
    • Ronald Lynn BlairMark Alan SchultzRobert Warren Schmidt
    • H04N591
    • H04N5/783H04N5/85H04N9/8042H04N9/8063
    • The invention concerns a method and apparatus for playing an audio track during a faster than 1× speed video trick mode playback of a video presentation. The method begins with the step of retrieving from a storage medium information for producing at least a video portion and a corresponding audio portion of a presentation. The audio portion of the presentation, like most audio sound tracks, includes periods of relative silence. For example, these may occur between words or between dramatic pauses in the dialogue. Audio gating is used to selectively gate the audio portion of the presentation to remove at least a portion of the periods of relative silence. Finally, a remaining part of the audio portion of the presentation is concatenated for playback to remove any gaps after the portion of the periods of relative silence have been removed.
    • 本发明涉及一种用于在视频呈现的1x速度视频特技模式播放的快速播放音轨的方法和装置。 该方法开始于从存储介质检索用于产生演示的至少一个视频部分和相应音频部分的信息的步骤。 与大多数音频声道一样,演示的音频部分包括相对静音的周期。 例如,这些可能发生在单词之间或在对话中的戏剧性暂停之间。 音频选通用于选择性地对演示文稿的音频部分进行选通以去除至少一部分相对沉默的周期。 最后,演示文稿的音频部分的剩余部分被级联以进行回放,以消除在相对沉默的时间段的部分已被去除之后的任何间隙。