Offline generation of subtitles

摘要

One embodiment described herein may take the form of a system or method for generating subtitles (also known as “closed captioning”) of an audio component of a multimedia presentation automatically for one or more stored presentations. In general, the system or method may access one or more multimedia programs stored on a storage medium, either as an entire program or in portions. Upon retrieval, the system or method may perform an analysis of the audio component of the program and generate a subtitle text file that corresponds to the audio component. In one embodiment, the system or method may perform a speech recognition analysis on the audio component to generate the subtitle text file.

主权项

1. A method for generating subtitles for a multimedia presentation comprising:
receiving, at a receiver device, a multimedia presentation from a distribution system; buffering, at the receiver device, the multimedia presentation on a storage medium; retrieving at least one portion of the multimedia presentation from the storage medium, the at least one portion comprising an audio component and a video component; performing speech recognition analysis, at the receiver device while the receiver device is otherwise idle, on the audio component to generate text corresponding to the audio component of the at least one portion of the multimedia presentation; integrating the generated text into a subtitle text file associated with the multimedia presentation; and displaying the integrated multimedia presentation with the generated subtitle text file as subtitles to the presentation.