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import numpy as np |
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import pyarrow as pa |
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import sounddevice as sd |
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from dora import DoraStatus |
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SAMPLE_RATE = 16000 |
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MAX_DURATION = 5 |
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class Operator: |
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""" |
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Microphone operator that records the audio |
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""" |
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def on_event( |
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self, |
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dora_event, |
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send_output, |
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) -> DoraStatus: |
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if dora_event["type"] == "INPUT": |
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audio_data = sd.rec( |
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int(SAMPLE_RATE * MAX_DURATION), |
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samplerate=SAMPLE_RATE, |
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channels=1, |
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dtype=np.int16, |
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blocking=True, |
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) |
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audio_data = audio_data.ravel().astype(np.float32) / 32768.0 |
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if len(audio_data) > 0: |
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send_output("audio", pa.array(audio_data), dora_event["metadata"]) |
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elif dora_event["type"] == "INPUT": |
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print("Microphone is not recording", dora_event["value"][0].as_py()) |
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return DoraStatus.CONTINUE |
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