Implement Hotword Detection

[jhbruhn]

The best solution for the implementation of the hotword would probably be to use pocketsphinx. We have a variety of options:

• call the pocketsphinx binary directly
  • would require the binary for every platform (and especially for arm)
• generate wrappers via swig
  • pocketsphinx already has there once something prepared, but it did not work for me (failed at compilation)
• use a JavaScript version of pocketsphinx
  • someone already compiled pocketsphinx to JavaScript using emscripten. The resulting file is nearly 5MB large. Node.JS crashed for me when I tried to require() it.

[jhbruhn]

Sheesh!
https://github.com/moneppo/node-pocketsphinx

[jhbruhn]

Okay, node-pocketsphinx does not support many devices yet (and we also need to compile it for a gazillion platforms (about 3)). This will get tricky. Crazy devices.

[jhbruhn]

The emscripten version works, but we have to get a better microphone input. node-speakable already has that, maybe we move that to an own module?

[cjmoeller]

tu was du nicht lassen kannst 🍡

[evancohen]

This issue is quite old, but for anyone interested I would suggest Sonus:
https://github.com/evancohen/sonus