Using Placement and Name for Speaker Identification in Captioning

摘要

The current method for speaker identification in closed captioning on television is ineffective and difficult in situations with multiple speakers, off screen speakers, or narration. An enhanced captioning system that uses graphical elements (e.g., avatar and colour), speaker names and caption placement techniques for speaker identification was developed. A comparison between this system and conventional closed captions was carried out deaf and hard-of-hearing participants. Results indicate that viewers are distracted when the caption follows the character on-screen regardless of whether this should assist in identifying who is speaking. Using the speaker's name for speaker identification is useful for viewers who are hard of hearing but not for deaf viewers. There was no significant difference in understanding, distraction, or preference for the avatar with the coloured border component.