No, but I think it's a great idea. If you end up using JuliusJS for this, please let me know. I still need to make some example applications to showcase what JuliusJS can do - I'll have them listed in the README when they're done.
I also came across PocketSphinx, which has been around a little longer - that may have some users in the wild already, and I wouldn't be surprised if it was used for navigation somewhere.
Sounds good, thanks! Also, I think you'd get more interest here if there were a simple demo page that people could click through to -- that's the nice thing about JS, after all. Maybe something hosted on a github.io page that just transcribes into a textarea?
I'm using Chrome's speech recognition engine for a virtual reality in WebGL thing I'm building. It's a bit annoying, as it requires a network connection, and is rather buggy (I end up crashing Chrome about one ever ten sessions when using it, all of Chrome, every tab). Something like this would fit my needs a lot better.
I also came across PocketSphinx, which has been around a little longer - that may have some users in the wild already, and I wouldn't be surprised if it was used for navigation somewhere.
[PocketSphinx] https://github.com/syl22-00/pocketsphinx.js/