Future work will look at fine-tuning the time-code detection factors by using Genetic Algo- rithm in conjunction with the challenges that subtitling brings, for example: A minimum of four video frames should be left between subtitles to allow the viewers eye to register the appearance of a new subtitle[3] to further improve the accuracy of the overall system. To make the system more robust, the application will have to be tested in spoken environments which vary from clean (studio recordings) to noisy (outdoor recordings) with multiple speakers speaking at the same time, speech mixed with background music or sound effects and songs for karaoke purposes. The type of speech may differ from dictation (newsreader) to spontaneous (debate or interview). This will be followed by field-testing of the developed prototype system to further optimise and tune as per the Broadcasting requirements and standards.
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