nodes:
- id: talker_1
path: bin/talker_1
inputs:
tick: dora/timer/millis/100
outputs:
- speech
- id: talker_2
path: bin/talker_2
inputs:
tick: dora/timer/secs/2
outputs:
- speech
- id: listener_1
path: bin/listener_1
inputs:
speech-1: talker_1/speech
speech-2: talker_2/speech