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import pyaudio
import json
import sys
try:
p = pyaudio.PyAudio()
info = p.get_host_api_info_by_index(0)
numdevices = info.get('deviceCount')
microphones = []
for i in range(0, numdevices):
device_info = p.get_device_info_by_host_api_device_index(0, i)
if device_info.get('maxInputChannels') > 0:
microphones.append({
'index': i,
'name': device_info.get('name'),
'defaultSampleRate': device_info.get('defaultSampleRate')
})
print(json.dumps(microphones))
p.terminate()
except Exception as e:
print(json.dumps({'error': str(e)}), file=sys.stderr)
sys.exit(1)
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