[UT][I][_gen_cmd_start]out [870][{"header":{"action":"run-task","streaming":"duplex","task_id":"Task Id"},"payload":{"task_group":"aigc","task":"multimodal-generation","function":"generation","model":"multimodal-dialog","input":{"workspace_id":"Workspace Id","app_id":"App Id","directive":"Start"},"parameters":{"upstream":{"sample_rate":16000,"type":"AudioAndVideo","mode":"tap2talk","audio_format":"pcm","enable_server_vad_start":false},"downstream":{"voice":"longanhuan","sample_rate":16000,"audio_format":"mp3","volume":50,"speech_rate":100,"pitch_rate":100,"intermediate_text":"transcript,dialog","transmit_rate_limit":16000},"client_info":{"user_id":"test_1","device":{"uuid":"test_1"}},"biz_params":{"user_prompt_params":{"name":"阿云","skill":"唱歌"},"user_defined_params":{"children_story":{"speaker_1_voice":"longxiaochun_v2"}}}}}}]