diff --git a/examples/KWS_ASR/KWS_ASR.ino b/examples/KWS_ASR/KWS_ASR.ino
index 0633850..93d4506 100644
--- a/examples/KWS_ASR/KWS_ASR.ino
+++ b/examples/KWS_ASR/KWS_ASR.ino
@@ -54,7 +54,9 @@ void setup()
 
     /* Setup ASR module and save returned work id */
     M5.Display.printf(">> Setup asr..\n");
-    asr_work_id = module_llm.asr.setup();
+    m5_module_llm::ApiAsrSetupConfig_t asr_config;
+    asr_config.input = {"sys.pcm", kws_work_id};
+    asr_work_id      = module_llm.asr.setup(asr_config);
 
     M5.Display.printf(">> Setup ok\n>> Say \"%s\" to wakeup\n", wake_up_keyword.c_str());
 }
diff --git a/src/M5ModuleLLM.h b/src/M5ModuleLLM.h
index 9b2a113..31f2a72 100644
--- a/src/M5ModuleLLM.h
+++ b/src/M5ModuleLLM.h
@@ -11,6 +11,7 @@
 #include "api/api_llm.h"
 #include "api/api_audio.h"
 #include "api/api_tts.h"
+#include "api/api_melotts.h"
 #include "api/api_kws.h"
 #include "api/api_asr.h"
 
@@ -63,6 +64,12 @@ class M5ModuleLLM {
      */
     m5_module_llm::ApiTts tts;
 
+    /**
+     * @brief MELOTTS module api set
+     *
+     */
+    m5_module_llm::ApiMelotts melotts;
+
     /**
      * @brief KWS module api set
      *
@@ -163,6 +170,7 @@ class M5ModuleLLM_VoiceAssistant {
         String asr;
         String llm;
         String tts;
+        String melotts;
     };
 
     WorkId_t _work_id;
diff --git a/src/api/api_asr.cpp b/src/api/api_asr.cpp
index 85283eb..43a86e9 100644
--- a/src/api/api_asr.cpp
+++ b/src/api/api_asr.cpp
@@ -23,12 +23,14 @@ String ApiAsr::setup(ApiAsrSetupConfig_t config, String request_id)
         doc["object"]                  = "asr.setup";
         doc["data"]["model"]           = config.model;
         doc["data"]["response_format"] = config.response_format;
-        doc["data"]["input"]           = config.input;
-        doc["data"]["enoutput"]        = config.enoutput;
-        doc["data"]["enkws"]           = config.enkws;
-        doc["data"]["rule1"]           = config.rule1;
-        doc["data"]["rule2"]           = config.rule2;
-        doc["data"]["rule3"]           = config.rule3;
+        JsonArray inputArray           = doc["data"]["input"].to<JsonArray>();
+        for (const String& str : config.input) {
+            inputArray.add(str);
+        }
+        doc["data"]["enoutput"] = config.enoutput;
+        doc["data"]["rule1"]    = config.rule1;
+        doc["data"]["rule2"]    = config.rule2;
+        doc["data"]["rule3"]    = config.rule3;
         serializeJson(doc, cmd);
     }
 
diff --git a/src/api/api_asr.h b/src/api/api_asr.h
index 87499f8..7924850 100644
--- a/src/api/api_asr.h
+++ b/src/api/api_asr.h
@@ -10,14 +10,13 @@
 namespace m5_module_llm {
 
 struct ApiAsrSetupConfig_t {
-    String model           = "sherpa-ncnn-streaming-zipformer-20M-2023-02-17";
-    String response_format = "asr.utf-8.stream";
-    String input           = "sys.pcm";
-    bool enoutput          = true;
-    bool enkws             = true;
-    float rule1            = 2.4;
-    float rule2            = 1.2;
-    float rule3            = 30.0;
+    String model              = "sherpa-ncnn-streaming-zipformer-20M-2023-02-17";
+    String response_format    = "asr.utf-8.stream";
+    std::vector<String> input = {"sys.pcm"};
+    bool enoutput             = true;
+    float rule1               = 2.4;
+    float rule2               = 1.2;
+    float rule3               = 30.0;
 };
 
 class ApiAsr {
diff --git a/src/api/api_kws.cpp b/src/api/api_kws.cpp
index 47f2d32..1431732 100644
--- a/src/api/api_kws.cpp
+++ b/src/api/api_kws.cpp
@@ -23,9 +23,12 @@ String ApiKws::setup(ApiKwsSetupConfig_t config, String request_id)
         doc["object"]                  = "kws.setup";
         doc["data"]["model"]           = config.model;
         doc["data"]["response_format"] = config.response_format;
-        doc["data"]["input"]           = config.input;
-        doc["data"]["enoutput"]        = config.enoutput;
-        doc["data"]["kws"]             = config.kws;
+        JsonArray inputArray           = doc["data"]["input"].to<JsonArray>();
+        for (const String& str : config.input) {
+            inputArray.add(str);
+        }
+        doc["data"]["enoutput"] = config.enoutput;
+        doc["data"]["kws"]      = config.kws;
         serializeJson(doc, cmd);
     }
 
diff --git a/src/api/api_kws.h b/src/api/api_kws.h
index 2e09553..b1e21e4 100644
--- a/src/api/api_kws.h
+++ b/src/api/api_kws.h
@@ -10,11 +10,11 @@
 namespace m5_module_llm {
 
 struct ApiKwsSetupConfig_t {
-    String kws             = "HELLO";
-    String model           = "sherpa-onnx-kws-zipformer-gigaspeech-3.3M-2024-01-01";
-    String response_format = "kws.bool";
-    String input           = "sys.pcm";
-    bool enoutput          = true;
+    String kws                = "HELLO";
+    String model              = "sherpa-onnx-kws-zipformer-gigaspeech-3.3M-2024-01-01";
+    String response_format    = "kws.bool";
+    std::vector<String> input = {"sys.pcm"};
+    bool enoutput             = true;
 };
 
 class ApiKws {
diff --git a/src/api/api_llm.cpp b/src/api/api_llm.cpp
index e2f54ac..af5c539 100644
--- a/src/api/api_llm.cpp
+++ b/src/api/api_llm.cpp
@@ -23,11 +23,13 @@ String ApiLlm::setup(ApiLlmSetupConfig_t config, String request_id)
         doc["object"]                  = "llm.setup";
         doc["data"]["model"]           = config.model;
         doc["data"]["response_format"] = config.response_format;
-        doc["data"]["input"]           = config.input;
-        doc["data"]["enoutput"]        = config.enoutput;
-        doc["data"]["enkws"]           = config.enkws;
-        doc["data"]["max_token_len"]   = config.max_token_len;
-        doc["data"]["prompt"]          = config.prompt;
+        JsonArray inputArray           = doc["data"]["input"].to<JsonArray>();
+        for (const String& str : config.input) {
+            inputArray.add(str);
+        }
+        doc["data"]["enoutput"]      = config.enoutput;
+        doc["data"]["max_token_len"] = config.max_token_len;
+        doc["data"]["prompt"]        = config.prompt;
         serializeJson(doc, cmd);
     }
 
diff --git a/src/api/api_llm.h b/src/api/api_llm.h
index 32c7eef..28d57d4 100644
--- a/src/api/api_llm.h
+++ b/src/api/api_llm.h
@@ -11,12 +11,12 @@ namespace m5_module_llm {
 
 struct ApiLlmSetupConfig_t {
     String prompt;
-    String model           = "qwen2.5-0.5b";
-    String response_format = "llm.utf-8.stream";
-    String input           = "llm.utf-8.stream";
-    bool enoutput          = true;
-    bool enkws             = true;
-    int max_token_len      = 127;
+    String model              = "qwen2.5-0.5B-prefill-20e";
+    String response_format    = "llm.utf-8.stream";
+    std::vector<String> input = {"llm.utf-8.stream"};
+    bool enoutput             = true;
+    int max_token_len         = 127;
+    // int max_token_len      = 512;
 };
 
 class ApiLlm {
diff --git a/src/api/api_melotts.cpp b/src/api/api_melotts.cpp
new file mode 100644
index 0000000..9fafe4b
--- /dev/null
+++ b/src/api/api_melotts.cpp
@@ -0,0 +1,75 @@
+/*
+ * SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
+ *
+ * SPDX-License-Identifier: MIT
+ */
+#include "api_melotts.h"
+
+using namespace m5_module_llm;
+
+void ApiMelotts::init(ModuleMsg* moduleMsg)
+{
+    _module_msg = moduleMsg;
+}
+
+String ApiMelotts::setup(ApiMelottsSetupConfig_t config, String request_id)
+{
+    String cmd;
+    {
+        JsonDocument doc;
+        doc["request_id"]              = request_id;
+        doc["work_id"]                 = "melotts";
+        doc["action"]                  = "setup";
+        doc["object"]                  = "melotts.setup";
+        doc["data"]["model"]           = config.model;
+        doc["data"]["response_format"] = config.response_format;
+        JsonArray inputArray           = doc["data"]["input"].to<JsonArray>();
+        for (const String& str : config.input) {
+            inputArray.add(str);
+        }
+        doc["data"]["enoutput"] = config.enoutput;
+        doc["data"]["enaudio"]  = config.enaudio;
+        serializeJson(doc, cmd);
+    }
+
+    String work_id;
+    _module_msg->sendCmdAndWaitToTakeMsg(
+        cmd.c_str(), request_id,
+        [&work_id](ResponseMsg_t& msg) {
+            // Copy work id
+            work_id = msg.work_id;
+        },
+        10000);
+    return work_id;
+}
+
+int ApiMelotts::inference(String work_id, String input, uint32_t timeout, String request_id)
+{
+    String cmd;
+    {
+        JsonDocument doc;
+        doc["request_id"]     = request_id;
+        doc["work_id"]        = work_id;
+        doc["action"]         = "inference";
+        doc["object"]         = "melotts.utf-8.stream";
+        doc["data"]["delta"]  = input;
+        doc["data"]["index"]  = 0;
+        doc["data"]["finish"] = true;
+        serializeJson(doc, cmd);
+    }
+
+    if (timeout == 0) {
+        _module_msg->sendCmd(cmd.c_str());
+        return MODULE_LLM_OK;
+    }
+
+    int ret = MODULE_LLM_WAIT_RESPONSE_TIMEOUT;
+    _module_msg->sendCmdAndWaitToTakeMsg(
+        cmd.c_str(), request_id,
+        [&ret](ResponseMsg_t& msg) {
+            // Copy error code
+            ret = msg.error.code;
+        },
+        timeout);
+    return ret;
+}
diff --git a/src/api/api_melotts.h b/src/api/api_melotts.h
new file mode 100644
index 0000000..1550b01
--- /dev/null
+++ b/src/api/api_melotts.h
@@ -0,0 +1,48 @@
+/*
+ * SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
+ *
+ * SPDX-License-Identifier: MIT
+ */
+#pragma once
+#include "../utils/msg.h"
+#include <Arduino.h>
+
+namespace m5_module_llm {
+
+struct ApiMelottsSetupConfig_t {
+    String model              = "melotts_zh-cn";
+    String response_format    = "sys.pcm";
+    std::vector<String> input = {"sys.pcm"};
+    bool enoutput             = false;
+    bool enaudio              = true;
+};
+
+class ApiMelotts {
+public:
+    void init(ModuleMsg* moduleMsg);
+
+    /**
+     * @brief Setup module TTS, return TTS work_id
+     *
+     * @param config
+     * @param request_id
+     * @return String
+     */
+    String setup(ApiMelottsSetupConfig_t config = ApiMelottsSetupConfig_t(), String request_id = "tts_setup");
+
+    /**
+     * @brief Inference input data by TTS module
+     *
+     * @param work_id
+     * @param input
+     * @param timeout wait response timeout, default 0 (do not wait response)
+     * @param request_id
+     * @return int
+     */
+    int inference(String work_id, String input, uint32_t timeout = 0, String request_id = "tts_inference");
+
+private:
+    ModuleMsg* _module_msg = nullptr;
+};
+
+}  // namespace m5_module_llm
diff --git a/src/api/api_tts.cpp b/src/api/api_tts.cpp
index 5dd8877..5cfa2e6 100644
--- a/src/api/api_tts.cpp
+++ b/src/api/api_tts.cpp
@@ -23,9 +23,12 @@ String ApiTts::setup(ApiTtsSetupConfig_t config, String request_id)
         doc["object"]                  = "tts.setup";
         doc["data"]["model"]           = config.model;
         doc["data"]["response_format"] = config.response_format;
-        doc["data"]["input"]           = config.input;
-        doc["data"]["enoutput"]        = config.enoutput;
-        doc["data"]["enkws"]           = config.enkws;
+        JsonArray inputArray           = doc["data"]["input"].to<JsonArray>();
+        for (const String& str : config.input) {
+            inputArray.add(str);
+        }
+        doc["data"]["enoutput"] = config.enoutput;
+        doc["data"]["enaudio"]  = config.enaudio;
         serializeJson(doc, cmd);
     }
 
@@ -50,7 +53,7 @@ int ApiTts::inference(String work_id, String input, uint32_t timeout, String req
         doc["action"]         = "inference";
         doc["object"]         = "tts.utf-8.stream";
         doc["data"]["delta"]  = input;
-        doc["data"]["index"]  = 1;
+        doc["data"]["index"]  = 0;
         doc["data"]["finish"] = true;
         serializeJson(doc, cmd);
     }
diff --git a/src/api/api_tts.h b/src/api/api_tts.h
index c3dd1b9..5ad601a 100644
--- a/src/api/api_tts.h
+++ b/src/api/api_tts.h
@@ -10,11 +10,11 @@
 namespace m5_module_llm {
 
 struct ApiTtsSetupConfig_t {
-    String model           = "single_speaker_english_fast";
-    String response_format = "tts.base64.wav";
-    String input           = "tts.utf-8.stream";
-    bool enoutput          = true;
-    bool enkws             = true;
+    String model              = "single_speaker_english_fast";
+    String response_format    = "sys.pcm";
+    std::vector<String> input = {"sys.pcm"};
+    bool enoutput             = false;
+    bool enaudio              = true;
 };
 
 class ApiTts {
diff --git a/src/presets/voice_assistant.cpp b/src/presets/voice_assistant.cpp
index d34cc0d..7b1913c 100644
--- a/src/presets/voice_assistant.cpp
+++ b/src/presets/voice_assistant.cpp
@@ -37,7 +37,11 @@ int M5ModuleLLM_VoiceAssistant::begin(String wakeUpKeyword, String prompt)
     }
 
     _debug("setup module asr..");
-    _work_id.asr = _m5_module_llm->asr.setup();
+    {
+        ApiAsrSetupConfig_t config;
+        config.input = {"sys.pcm", _work_id.kws};
+        _work_id.asr = _m5_module_llm->asr.setup(config);
+    }
     if (_work_id.asr.isEmpty()) {
         return MODULE_LLM_ERROR_NONE;
     }
@@ -45,7 +49,7 @@ int M5ModuleLLM_VoiceAssistant::begin(String wakeUpKeyword, String prompt)
     _debug("setup module llm..");
     {
         ApiLlmSetupConfig_t config;
-        config.input  = _work_id.asr;
+        config.input  = {_work_id.asr, _work_id.kws};
         config.prompt = prompt;
         _work_id.llm  = _m5_module_llm->llm.setup(config);
     }
@@ -56,7 +60,7 @@ int M5ModuleLLM_VoiceAssistant::begin(String wakeUpKeyword, String prompt)
     _debug("setup module tts..");
     {
         ApiTtsSetupConfig_t config;
-        config.input = _work_id.llm;
+        config.input = {_work_id.llm, _work_id.kws};
         _work_id.tts = _m5_module_llm->tts.setup(config);
     }
     if (_work_id.tts.isEmpty()) {