session 6 - alex varley - looking to the future
TRANSCRIPT
Alex VarleyACMA Live Captioning – let’s talk
Looking to the Future
Automation
Timing
Quality standards
Viewing platform
User control
Multi-language
What are the key issues?
Automation
• How much can be automatic and what needs human input?
• Speech recognition and steno already does this• Technology will help reduce errors• Best advances will be in catch-up TV versions
Automation
Timing
• Live delay is a factor that can never go away• Buffered live captions will be more common• Challenge is to get that standard accepted• Already being used• Other options such as delay the broadcast are
too problematic
Timing
Quality standards – is perfection possible in live captioning?
• Less focus on raw metrics and more on comprehension
• NER type models will develop• Key will always be training and preparation• Live captioning will remain specialist skill• Re-use of live captions will help quality factors• Other live captioning (ie schools/meetings) will
impact on approaches
Quality standards
Viewing platform
• How and where are people watching live captioned output?
• Mobile and tablet viewing growing and size of device grows to accommodate video display
• Display issues and perceived quality• Regulation of this – who’s responsibility?• Live sports and news will drive this with
metadata value• Other live – classroom, meetings
Viewing platform
User control
• New generation TVs and devices allow user to control output displays
• This throws some quality standards around colours and clarity (font, size etc)
• Regulators will have to move away from these issues
• Standards will move to universal
User control
Multi-language live captioning
• This already happens in multi-lingual countries• Growing issue for streaming live video – sports
and news• Part of the move towards user choice• Machine translation might be ok for sports• Culture and language complexity are barriers• Completely different in non-live
Multi-language live captioning
Broad predictions
1. Humans will keep doing live captioning 2. Buffered block captions will be standard3. Quality improvements will be driven by re-use
of live captions4. Regulations will be based on content not
platform5. The boom in live captioning will be specialist
streamed video, meetings, schools etc
Predictions
