68 lines
1.8 KiB
Python
68 lines
1.8 KiB
Python
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# audio_test.py
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import soundfile as sf
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import numpy as np
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import jack
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import sys
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def test_audio(filepath):
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client = jack.Client("AudioTest")
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sr = client.samplerate
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out_L = client.outports.register("test_L")
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out_R = client.outports.register("test_R")
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# Load file
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try:
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data, file_sr = sf.read(filepath, always_2d=True)
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data = data.T.astype(np.float32)
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print(f"✓ Loaded: {data.shape} at {file_sr}Hz")
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if file_sr != sr:
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print(f"⚠ Sample rate mismatch: file={file_sr} JACK={sr}")
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print(f" Install librosa for auto-resampling")
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except Exception as e:
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print(f"✗ Load failed: {e}")
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sys.exit(1)
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position = [0]
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playing = [True]
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def callback(frames):
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out_L.get_array().fill(0.0)
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out_R.get_array().fill(0.0)
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if playing[0]:
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pos = position[0]
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end = min(pos + frames, data.shape[1])
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chunk = data[:, pos:end]
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n = chunk.shape[1]
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out_L.get_array()[:n] = chunk[0]
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out_R.get_array()[:n] = chunk[1] if data.shape[0] > 1 else chunk[0]
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position[0] += n
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if position[0] >= data.shape[1]:
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playing[0] = False
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print("✓ Playback complete")
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client.set_process_callback(callback)
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client.activate()
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print(f"Playing {filepath}")
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print("Wire 'AudioTest:test_L/R' in qpwgraph to hear audio")
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print("Press Ctrl+C to stop")
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import time
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try:
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while playing[0]:
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time.sleep(0.1)
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except KeyboardInterrupt:
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pass
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client.deactivate()
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client.close()
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if __name__ == "__main__":
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if len(sys.argv) < 2:
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print("Usage: python audio_test.py /path/to/file.flac")
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sys.exit(1)
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test_audio(sys.argv[1])
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