b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
43 lines
2 KiB
Python
43 lines
2 KiB
Python
#!/usr/bin/env python3
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# SPDX-License-Identifier: MPL-2.0
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"""Play a quiet test tone and measure microphone PCM; retain no recording."""
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import json
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import math
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import struct
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import subprocess
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import time
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def main():
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report = {'recordedAtUnix': time.time(), 'recordingRetained': False,
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'scope': 'Physical PulseAudio endpoints, not in-call audio'}
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# Use a per-stream volume; leave the user's sink volume and mute unchanged.
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tone = b''.join(struct.pack('<h', int(16000*math.sin(2*math.pi*440*i/48000)))
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for i in range(48000))
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played = subprocess.run(['paplay', '--raw', '--rate=48000', '--channels=1',
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'--format=s16le', '--volume=6554',
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'--device=sink.primary_output'], input=tone,
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stdout=subprocess.DEVNULL, stderr=subprocess.PIPE, timeout=10)
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report['playback'] = {'exitCode': played.returncode, 'device': 'sink.primary_output',
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'audibilityConfirmed': False}
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recording = subprocess.Popen(['parec', '--raw', '--rate=48000', '--channels=1',
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'--format=s16le', '--device=source.droid'],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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try:
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try: data, error = recording.communicate(timeout=3)
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except subprocess.TimeoutExpired:
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recording.terminate()
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data, error = recording.communicate(timeout=3)
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finally:
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if recording.poll() is None:
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recording.kill()
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recording.wait()
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samples = struct.unpack('<'+'h'*(len(data)//2), data[:len(data)//2*2])
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report['microphone'] = {'device': 'source.droid', 'sampleCount': len(samples),
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'rms': round(math.sqrt(sum(x*x for x in samples)/len(samples)), 2) if samples else None,
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'peak': max(map(abs, samples), default=None),
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'nonSilent': any(samples)}
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print(json.dumps(report, indent=2))
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if __name__ == '__main__': main()
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