I try client-sdk-esp32, the sample project minimal, Here is the sample log: I (11542) AUD_PIPE_NEGO: Path mask 1 select sink:0 format 1398100047 I (11548) AUD_SRC: Get rate:16000, ch:1, bits:16 I (11553) ESP_GMF_TASK: Waiting to run... [tsk:aenc_0-0x3fcd33e0, wk:0x0, run:0] I (11559) I2S_IF: channel mode 2 bits:16/16 channel:4 mask:3 I (11559) livekit_example: Room state changed: Connected I (11565) I2S_IF: TDM Mode 0 bits:16/16 channel:4 sample_rate:16000 mask:3 I (11576) I2S_IF: channel mode 0 bits:16/16 channel:4 mask:3 I (11582) I2S_IF: STD Mode 1 bits:32/32 channel:4 sample_rate:16000 mask:0 I (11589) ES7210: Bits 16 I (11597) ES7210: Enable ES7210_INPUT_MIC1 I (11600) ES7210: Enable ES7210_INPUT_MIC2 I (11603) ES7210: Enable ES7210_INPUT_MIC3 I (11606) ES7210: Enable ES7210_INPUT_MIC4 I (11609) ES7210: Enable TDM mode I (11615) ES7210: Unmuted I (11615) Adev_Codec: Open codec device OK E (11615) MODEL_LOADER: Can not find model in partition table W (11620) AUD_AEC_SRC: No model to load W (11624) AFE_CONFIG: wakenet model not found. please load wakenet model... I (11674) AFE: AFE Version: (1MIC_V250121) I (11674) AFE: Input PCM Config: total 2 channels(1 microphone, 1 playback), sample rate:16000 I (11675) AFE: AFE Pipeline: [input] -> |AEC(SR_LOW_COST)| -> |VAD(WebRTC)| -> [output] I (11684) AUD_SRC: Start to fetch audio src data now I (11684) ESP_GMF_TASK: One times job is complete, del[wk:0x3c29bcbc, ctx:0x3c29ba48, label:aud_src_open] I (11697) ESP_GMF_PORT: ACQ IN, new self payload:0x3c29bcbc, port:0x3c2a0c00, el:0x3c29ba48-aud_src I (11706) ESP_GMF_AENC: Open, type:OPUS, acquire in frame: 640, out frame: 100 I (11713) ESP_GMF_TASK: One times job is complete, del[wk:0x3c314578, ctx:0x3c29bb24, label:aud_enc_open] The device connected to the room, but no voice output, and even I said somthing there is no related log changed in the console. I use default S3_Korvo_V2 board. The board is ok for mic and speaker My agent is working correct if I use the sandbox app. The embedded project is also setup with the sandbox configuration. Is there any suggestion I could find my embedded problem?

First off can you please thread your messages. It is hard to know which to respond to when there are multiple in the main channel for the same conversation. @gentle-refrigerator-18414 may have more good advise on the ESP issue you are having.

S3_Korvo_V2

is a good board to use. I've used our SDK on that specific board and have had no issues. Often agent is not dispatched because a room is getting reused. The agent will only get dispatched to a new room. Another common issue for folks just starting out is a mismatch between agent name in the agent and the dispatch.

Are you connecting using a token or sandbox id?

I use sandbox id. I use the same sandbox id in sandbox APP. After a success connection, from the session log, I could see agent dispatch, and make init. But if using ESP32 device, I could no see such agent dispatch . I thing the first problem is still about the connection. From the console log, device reported the room was connected. so I do not know how to debug current situation.