Allow supplementary audio tracks to be routed through the headphone socket
Because users of supplementary audio tracks such as audio description, alternative languages or spoken subtitles often watch television in a family or communal situation with other viewers who do not need to hear the supplementary track, it is useful if it can be routed through a headphone socket.
Directions and techniques
Allow users to route supplementary audio tracks through the headphone socket
This should result in both the supplementary audio track (e.g. Audio description, second language or spoken subtitles) being audible through the headphones at the same time that the main audio alone can be heard through the television’s loudspeakers.