feat: mqtt audio publish&subscribe

mqtt/publish_audio.py

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+import paho.mqtt.client as mqtt
+
+# MQTT Broker信息
+broker = '127.0.0.1'
+port = 1883
+topic = 'audio/test'
+
+# 音频文件路径
+audio_file_path = 'tmp2.wav'
+
+def publish_audio():
+    client = mqtt.Client()
+    client.connect(broker, port)
+
+    with open(audio_file_path, 'rb') as audio_file:
+        audio_data = audio_file.read()
+
+    client.publish(topic, audio_data)
+    client.disconnect()
+
+if __name__ == "__main__":
+    publish_audio()
+    print("Audio published successfully.")