continuous-integration/drone/push Build is passingDetails
- The `Responding` state should be modelled as an extra event/binary
flag, not as an assistant state. The assistant may be listening for
hotwords even while the `tts` plugin is responding, and we don't want
the two states to interfere with each either - neither to build a more
complex state machine that also needs to take concurrent states into
account.
- Stop any responses being rendered upon the `tts` plugin when a new
hotword audio is detected. If e.g. I say "Ok Google", I should always
be able to trigger the assistant and stop any concurrent audio
process.
- `SpeechRecognizedEvent` should be emitted even if `cheetah`'s latest
audio frame results weren't marked as final, and the speech detection
window timed out. Cheetah's `is_final` detection seems to be quite
buggy sometimes, and it may not properly detect the end of utterances,
especially with non-native accents. The workaround is to flush out
whatever text is available (if at least some speech was detected) into
a `SpeechRecognizedEvent` upon timeout.