Patent attributes
A method and apparatus for monitoring volume level associated with a video stream to determine when the volume level is below an activation threshold (level that may be difficult for a viewer to hear) and automatically activating the closed captioning at that point. The activation threshold may be configurable based on viewer preferences and may be dynamically generated based on the monitored volume level for the video stream. The closed captioning may be de-activated when the volume level exceeds a de-activation threshold (may be configurable and may be dynamically generated). The automatic activation/de-activation of the closed captioning may be performed by a video processor included in a set top box or a television. The volume level may be monitored by the video processor or externally by a volume monitoring device. The text of the closed captioning may be monitored for words associated with a low volume level.
