Periodic Silent Speaker Detection

[QuentinFuxa]

First of all, thanks for the project! I’m using it in a live Speech-to-Text (STT) + diarization setup: https://github.com/QuentinFuxa/whisper_streaming_web

I am testing my pipeline using MacOS BlackHole, which routes the output audio to the input. This allows me to repeatedly test TTS and diarization with the same exact audio. When I start the system, virtually no sound is being produced. However, when running a simple script with diart, I observe speaker 0 being detected periodically, even though no meaningful audio is present.

from diart.sources import MicrophoneAudioSource
from diart.inference import StreamingInference
from diart.sinks import RTTMWriter

pipeline = SpeakerDiarization()
mic = MicrophoneAudioSource()
inference = StreamingInference(pipeline, mic, do_plot=True)
prediction = inference()

Speaker 0 is detected at regular intervals, as shown in the attached image. It seems like the system is detecting artificial periodic bursts.

Would appreciate any insights on what might be causing this issue!