Automatic activation of closed captioning for low volume periods

A video processor for automatically activating closed captioning for a video stream containing an audio portion and a video portion, the video processor comprising:

• a text generator which generates text for closed captioning information included in the video stream;
• an audio decoder which decodes the audio portion, wherein the decoded audio portion has a volume level;
• a volume level monitor which monitors the volume level of the audio portion from the audio decoder to dynamically generate an activation threshold and a deactivation threshold;
• and
• a closed captioning activator which:
• determines the volume level is less than the activation threshold for a first defined period of time and, when the volume level is less than the activation threshold for the first defined period of time, instructs the text generator to provide the text for the closed captioning information with the video portion to a display,
• determines the volume level when the text for the closed captioning information is being provided is more than the de-activation threshold for a second defined period of time, and when the volume level is more than the de-activation threshold for the second defined period of time, instructs the text generator to not provide the text for the closed captioning information with the video stream to the display, wherein the de-activation threshold is more than the activation threshold.

A processor readable storage medium containing processor executable instructions that when executed by a processor cause the processor to automatically activate closed captioning for a video stream by:

• receiving a video stream, the video stream including an audio portion and a video portion;
• decoding the audio portion of the video stream, the audio portion having a volume level;
• determining the volume level of the audio portion to dynamically generate an activation threshold and a deactivation threshold;
• comparing the volume level to the activation threshold;
• and
• activating the closed captioning for the video stream if the volume level is below the activation threshold for a first defined period of time;
• determining the volume level of the audio portion while the closed captioning is activated;
• comparing the volume level to the de-activation threshold, wherein the de-activation threshold is more than the activation threshold;
• and
• de-activating the closed captioning for the video stream if the volume level is above the de-activation threshold for a second defined period of time.