Hotword detection

[nixonyh]

Summary

DeepSpeech allow us to add bias to a word. We can use this feature to create a simple hotword detection.

Intended Outcome

• What is the use case of this?
  • Agent able to recognize its name.
  • Hotword based commands.

How will it work?

_sttClient = new DeepSpeech(FileUtil.GetStreamingAssetFilePath(modelPath));
_sttClient.EnableExternalScorer(FileUtil.GetStreamingAssetFilePath(externalScorerPath));
// If you want to add bias to a word. Only supports single words.
_sttClient.AddHotWord("cue", 20.0f);

// You can also add a negative value
_sttClient.AddHotWord("cue",-250.0f);