@Mayana If you care about my Rhapsode project, I highly encourage you to participate in Mozilla Common Voice! (See above toot)
Speech recognition is my single biggest weakness in localization (not that I'm unimpressed by Voice2JSON's efforts there), so lending all speech-to-text engines more training data will help Rhapsode work accross all languages!
Also yes: I'd love automated transcriptions in all our video players. Did you know PocketSphinx & Kaldi supports GStreamer?
For people who care about, support, or build Free, Libre, and Open Source Software (FLOSS).