#define STTD_METHOD_HELLO "sttd_method_hello"
#define STTD_METHOD_SET_STATE "sttd_method_set_state"
#define STTD_METHOD_SET_VOLUME "sttd_method_set_volume"
+#define STTD_METHOD_SPEECH_STATUS "sttd_method_speech_status"
/******************************************************************************************