公开(公告)号：US11342002B1

公开(公告)日：2022-05-24

申请号：US16210545

申请日：2018-12-05

Applicant: Amazon Technologies, Inc.

Inventor： Prabhakar Gupta ,  Shaktisingh P Shekhawat ,  Kumar Keshav

IPC: H04N9/80 ,  G11B27/19 ,  H04N9/87 ,  G11B27/036 ,  H04N5/92

Abstract: An automated solution to determine suitable time ranges or timestamps for captions is described. In one example, a content file includes subtitle data with captions for display over respective timeframes of video. Audio data is extracted from the video, and the audio data is compared against a sound threshold to identify auditory timeframes in which sound is above the threshold. The subtitle data is also parsed to identify subtitle-free timeframes in the video. A series of candidate time ranges is then identified based on overlapping ranges of the auditory timeframes and the subtitle-free timeframes. In some cases, one or more of the candidate time ranges can be merged together or omitted, and a final series of time ranges or timestamps for captions is obtained. The time ranges or timestamps can be used to add additional non-verbal and contextual captions and indicators, for example, or for other purposes.