c681e4ce39
- Replaced per-frame `run_in_executor` calls with single background reader thread in `ThreadedAudioInput` - Reader thread continuously calls `_read()` and enqueues data via `call_soon_threadsafe` to asyncio.Queue - Reduces per-frame scheduling overhead and context-switch jitter while preserving async API - Added thread lifecycle management: lazy start on first `frames()` call, graceful stop in `aclose()` - Update
32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
#!/usr/bin/env python3
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import sys
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try:
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import sounddevice as sd
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except Exception as e:
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sys.stderr.write("sounddevice is not installed or failed to import. Install with: pip install sounddevice\n")
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raise
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ha = sd.query_hostapis()
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print("Host APIs:")
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for i, h in enumerate(ha):
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print(f"{i}: {h.get('name')}")
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print("\nDevices:")
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for i, d in enumerate(sd.query_devices()):
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api_idx = d.get('hostapi')
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api = ha[api_idx].get('name') if isinstance(api_idx, int) and 0 <= api_idx < len(ha) else '?'
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name = d.get('name')
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mi = int(d.get('max_input_channels') or 0)
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mo = int(d.get('max_output_channels') or 0)
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sr = int(d.get('default_samplerate') or 0)
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print(f"{i:2d} | in={mi:<2d} out={mo:<2d} sr={sr:<6d} api={api} name={name}")
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print("\nHints:")
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print("- Pick an INPUT index with in>0 that matches your capture device name (e.g., 'USB Audio Device').")
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print("- Pick an OUTPUT index with out>0 that matches your playback device name (e.g., 'USB Audio').")
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print("- We will use mono (channels=1). If mono fails, we can fall back to 2 channels.")
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print("\nALSA hw: device suggestions for your setup:")
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print("- Input (Shure MVX2U: USB Audio (hw:0,0)) -> use 'hw:0,0'")
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print("- Output (USB Audio: - (hw:1,0)) -> use 'hw:1,0'")
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