I'm experimenting with TTML captions in Smooth Streaming videos and I noticed that the captions are extremely small using the default caption styles produced by Expression Encoder - they are only a few pixels high. Is there something I am doing
wrong? This is completely unexpected.
The subtitles do not specify a font size in the style given for this region. They use the default styling that comes from Expression Encoder, with no modifications.
Do I have to manually specify a font size to make it work reasonably? I would expect the defaults to be good-looking already, so I am puzzled at what I see.
You can see how small they are in this image: