101 lines
2.6 KiB
Python
101 lines
2.6 KiB
Python
#!/usr/bin/env python3
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"""
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简单的音频测试脚本，用于诊断树莓派上的音频问题
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"""
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import pyaudio
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import time
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import os
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def test_audio():
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"""测试音频设备"""
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print("=== 音频设备测试 ===")
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pa = pyaudio.PyAudio()
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# 列出所有设备
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print("\n可用的音频设备:")
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for i in range(pa.get_device_count()):
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info = pa.get_device_info_by_index(i)
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print(f" 设备 {i}: {info['name']}")
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print(f" 输入通道: {info['maxInputChannels']}")
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print(f" 输出通道: {info['maxOutputChannels']}")
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print(f" 默认采样率: {info['defaultSampleRate']}")
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print()
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# 查找默认输入设备
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default_input = pa.get_default_input_device_info()
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print(f"默认输入设备: {default_input['name']} (索引: {default_input['index']})")
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# 查找默认输出设备
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default_output = pa.get_default_output_device_info()
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print(f"默认输出设备: {default_output['name']} (索引: {default_output['index']})")
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pa.terminate()
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def test_recording():
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"""测试录音功能"""
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print("\n=== 录音测试 ===")
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pa = pyaudio.PyAudio()
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try:
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# 设置录音参数
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FORMAT = pyaudio.paInt16
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CHANNELS = 1
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RATE = 16000 # 降低采样率，使用设备默认的44100
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CHUNK = 1024
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print(f"尝试打开音频流，采样率: {RATE}")
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# 打开音频流
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stream = pa.open(
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format=FORMAT,
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channels=CHANNELS,
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rate=RATE,
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input=True,
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frames_per_buffer=CHUNK
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)
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print("开始录音5秒...")
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frames = []
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# 录音5秒
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for i in range(0, int(RATE / CHUNK * 5)):
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data = stream.read(CHUNK)
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frames.append(data)
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if i % 10 == 0:
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print(f"录音中... {i * CHUNK / RATE:.1f}秒")
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print("录音完成")
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# 停止流
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stream.stop_stream()
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stream.close()
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# 播放录音
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print("播放录音...")
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stream = pa.open(
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format=FORMAT,
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channels=CHANNELS,
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rate=RATE,
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output=True
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)
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for frame in frames:
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stream.write(frame)
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stream.stop_stream()
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stream.close()
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print("播放完成")
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except Exception as e:
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print(f"录音测试失败: {e}")
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finally:
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pa.terminate()
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if __name__ == "__main__":
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test_audio()
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test_recording() |