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diff --git a/README.md b/README.md
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+# PXUA216MB-DL2-M Python例程
+
+## 安装
+本项目通过poetry实现包管理
+
+关于poetry的安装及使用方法：[poetry](https://python-poetry.org/docs/)
+
+本项目依赖于开源项目 [sounddevice](https://python-sounddevice.readthedocs.io/en/0.4.4/installation.html)
+
+安装poetry后，简单使用```poetry install```即可安装依赖
+
+## 使用
+###寻找一个格式的子类型：
+```
+>>> import soundfile as sf
+>>> sf.available_subtypes('RAW')
+```
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diff --git a/recorded_audio/testfile.raw b/recorded_audio/testfile.raw
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diff --git a/src/__pycache__/settings.cpython-310.pyc b/src/__pycache__/settings.cpython-310.pyc
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diff --git a/src/example.py b/src/example.py
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+import sounddevice as sd
+import soundfile as sf
+import settings
+import numpy as np
+
+
+def select_device(device_type='output'):
+ i = 0
+ for device in device_list: # 选择设备
+ host_name = sd.query_hostapis(device['hostapi'])['name']
+ if device_type == 'input' and 'PawPaw Microphone Array' in device['name'] and host_api in host_name \
+ and input_channel == device['max_input_channels']:
+ print("找到一个PawPaw输入设备: " + str(i) + " " + device['name'])
+ sd.default.device = i # 设置输入设备
+ if device_type == 'output' and 'PawPaw Microphone Array' in device['name'] and host_api in host_name \
+ and output_channels == device['max_output_channels']:
+ print("找到一个PawPaw输出设备: " + str(i) + " " + device['name'])
+ sd.default.device = i # 设置输出设备
+ i = i + 1
+
+
+def play_pcm_raw():
+ # path = '../test_audio/test_audio_48k.raw'
+ path = '../recorded_audio/testfile.raw' # 此处的.raw文件即为pcm格式音频
+ # 解析pcm文件并存放到数据流中
+ # 需要4个变量：文件路径，音频通道数，采样率，音频子类型
+ # 此处的音频位深为16位，故选用PCM_16，关于如何寻找音频的子类型，参考README.md
+ select_device(device_type='output')
+ data, fs = sf.read(path, channels=2, samplerate=48000, subtype='PCM_16')
+ sd.play(data, fs)
+ sd.wait()
+
+
+def recording():
+ duration = 3 # 录制时间
+ fs = 48000 # 采样率
+ select_device(device_type='input')
+ my_recording = sd.rec(int(duration * fs), samplerate=fs, channels=18) # 将音频写入输入流
+ sd.wait()
+
+ # 提取前两个通道的音频，保存为raw文件供测试播放
+ stereo_array = np.empty((len(my_recording), 2))
+ flag = 0
+ for frame in my_recording:
+ stereo_array[flag][0] = frame[0]
+ stereo_array[flag][1] = frame[1]
+ flag = flag + 1
+ print(stereo_array)
+ sf.write('../recorded_audio/testfile.raw', data=stereo_array, subtype='PCM_16', samplerate=fs)
+
+
+if __name__ == '__main__':
+ host_api = settings.HOST_API # 不同平台的音频接口不同，例如windows可用WASAPI
+ input_channel = settings.MAX_INPUT_CHANNEL
+ output_channels = settings.MAX_OUTPUT_CHANNEL
+
+ device_list = sd.query_devices() # 获取电脑上的所有音频设备
+ recording()
+ while True:
+ play_pcm_raw()
+ user_input = input("输入1继续播放，输入2退出测试")
+ if user_input == '1':
+ continue
+ if user_input == '2':
+ break
+ print("结束")
diff --git a/src/settings.py b/src/settings.py
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+HOST_API = 'WASAPI'
+MAX_INPUT_CHANNEL = 18
+MAX_OUTPUT_CHANNEL = 2
diff --git a/test_audio/Digital Presentation_48000.wav b/test_audio/Digital Presentation_48000.wav
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diff --git a/test_audio/test_audio_16k.raw b/test_audio/test_audio_16k.raw
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diff --git a/test_audio/test_audio_48k.raw b/test_audio/test_audio_48k.raw
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