diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc87093..b809179 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,9 +13,12 @@ if(IDF_TARGET STREQUAL "esp32")
     set(requires
         json
         spiffs
-        esp_partition
         )
 
+    IF (IDF_VERSION_MAJOR GREATER 4)
+        list(APPEND requires esp_partition)
+    ENDIF (IDF_VERSION_MAJOR GREATER 4)
+
     idf_component_register(SRCS ${srcs}
                        INCLUDE_DIRS ${include_dirs}
                        REQUIRES ${requires}
diff --git a/Kconfig.projbuild b/Kconfig.projbuild
index 05460c9..b9118d9 100644
--- a/Kconfig.projbuild
+++ b/Kconfig.projbuild
@@ -147,7 +147,11 @@ choice CHINESE_SR_MN_MODEL_SEL
         depends on IDF_TARGET_ESP32S3
     
     config SR_MN_CN_MULTINET6_QUANT
-        bool "chinese recognition (mn6_cn)"
+        bool "general chinese recognition (mn6_cn)"
+        depends on IDF_TARGET_ESP32S3
+    
+    config SR_MN_CN_MULTINET6_AC_QUANT
+        bool "chinese recognition for air conditioner controller (mn6_cn_ac)"
         depends on IDF_TARGET_ESP32S3
 endchoice
 
@@ -166,7 +170,7 @@ choice ENGLISH_SR_MN_MODEL_SEL
         depends on IDF_TARGET_ESP32S3
     
     config SR_MN_EN_MULTINET6_QUANT
-        bool "english recognition (mn6_en)"
+        bool "general english recognition (mn6_en)"
         depends on IDF_TARGET_ESP32S3
 
 endchoice
diff --git a/lib/esp32s3/libc_speech_features.a b/lib/esp32s3/libc_speech_features.a
index 2bbd157..110668b 100644
Binary files a/lib/esp32s3/libc_speech_features.a and b/lib/esp32s3/libc_speech_features.a differ
diff --git a/lib/esp32s3/libdl_lib.a b/lib/esp32s3/libdl_lib.a
index 4d2b5d3..fb54618 100644
Binary files a/lib/esp32s3/libdl_lib.a and b/lib/esp32s3/libdl_lib.a differ
diff --git a/lib/esp32s3/libesp_audio_front_end.a b/lib/esp32s3/libesp_audio_front_end.a
index 28aa45d..55e3403 100644
Binary files a/lib/esp32s3/libesp_audio_front_end.a and b/lib/esp32s3/libesp_audio_front_end.a differ
diff --git a/lib/esp32s3/libesp_audio_processor.a b/lib/esp32s3/libesp_audio_processor.a
index aa79afb..5c2a846 100644
Binary files a/lib/esp32s3/libesp_audio_processor.a and b/lib/esp32s3/libesp_audio_processor.a differ
diff --git a/lib/esp32s3/libfst.a b/lib/esp32s3/libfst.a
index 36cb38d..2a634b6 100644
Binary files a/lib/esp32s3/libfst.a and b/lib/esp32s3/libfst.a differ
diff --git a/lib/esp32s3/libhufzip.a b/lib/esp32s3/libhufzip.a
index 28e6f0c..16e7c53 100644
Binary files a/lib/esp32s3/libhufzip.a and b/lib/esp32s3/libhufzip.a differ
diff --git a/lib/esp32s3/libmultinet.a b/lib/esp32s3/libmultinet.a
index a9edd07..9c4a3ee 100644
Binary files a/lib/esp32s3/libmultinet.a and b/lib/esp32s3/libmultinet.a differ
diff --git a/lib/esp32s3/libwakenet.a b/lib/esp32s3/libwakenet.a
index dae647d..384f20f 100644
Binary files a/lib/esp32s3/libwakenet.a and b/lib/esp32s3/libwakenet.a differ
diff --git a/model/movemodel.py b/model/movemodel.py
index 3eb3966..04e2bd4 100644
--- a/model/movemodel.py
+++ b/model/movemodel.py
@@ -75,6 +75,8 @@ def copy_multinet_from_sdkconfig(model_path, sdkconfig_path, target_path):
         models.append('mn5q8_cn')
     elif "CONFIG_SR_MN_CN_MULTINET6_QUANT" in models_string:
         models.append('mn6_cn')
+    elif "CONFIG_SR_MN_CN_MULTINET6_AC_QUANT" in models_string:
+        models.append('mn6_cn_ac')
     
     if "CONFIG_SR_MN_EN_MULTINET5_SINGLE_RECOGNITION_QUANT8" in models_string:
         models.append('mn5q8_en')
@@ -127,6 +129,7 @@ if __name__ == '__main__':
 
     copy_multinet_from_sdkconfig(model_path, sdkconfig_path, target_path)
     copy_wakenet_from_sdkconfig(model_path, sdkconfig_path, target_path)
+    copy_nsnet_from_sdkconfig(model_path, sdkconfig_path, target_path)
     pack_models(target_path, image_file)
     total_size = os.path.getsize(os.path.join(target_path, image_file))
     recommended_size = int(math.ceil(total_size/1024))
diff --git a/model/multinet_model/fst/mn6_cn.vocab b/model/multinet_model/mn6_cn/vocab
similarity index 100%
rename from model/multinet_model/fst/mn6_cn.vocab
rename to model/multinet_model/mn6_cn/vocab
diff --git a/model/multinet_model/mn6_cn_ac/_MODEL_INFO_ b/model/multinet_model/mn6_cn_ac/_MODEL_INFO_
new file mode 100644
index 0000000..e08966b
--- /dev/null
+++ b/model/multinet_model/mn6_cn_ac/_MODEL_INFO_
@@ -0,0 +1,2 @@
+# (neural network type)_(model data version)_(lable1_detection windown length_threshold for 90%_threshold for 95%)_(lable2 ...)_...
+MN6_AC_chinese_8_0.9_0.90
diff --git a/model/multinet_model/mn6_cn_ac/mn6_data b/model/multinet_model/mn6_cn_ac/mn6_data
new file mode 100644
index 0000000..b57da4c
Binary files /dev/null and b/model/multinet_model/mn6_cn_ac/mn6_data differ
diff --git a/model/multinet_model/mn6_cn_ac/mn6_index b/model/multinet_model/mn6_cn_ac/mn6_index
new file mode 100644
index 0000000..fe8da15
Binary files /dev/null and b/model/multinet_model/mn6_cn_ac/mn6_index differ
diff --git a/model/multinet_model/mn6_cn_ac/vocab b/model/multinet_model/mn6_cn_ac/vocab
new file mode 100644
index 0000000..7048404
--- /dev/null
+++ b/model/multinet_model/mn6_cn_ac/vocab
@@ -0,0 +1,408 @@
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diff --git a/model/multinet_model/fst/mn6_en.vocab b/model/multinet_model/mn6_en/vocab
similarity index 100%
rename from model/multinet_model/fst/mn6_en.vocab
rename to model/multinet_model/mn6_en/vocab