diff --git a/build-ios-no-tts.sh b/build-ios-no-tts.sh
index a7fa86a033..f5a281b82c 100755
--- a/build-ios-no-tts.sh
+++ b/build-ios-no-tts.sh
@@ -125,7 +125,7 @@ cmake --build build/os64 --target install
 echo "Generate xcframework"
 
 mkdir -p "build/simulator/lib"
-for f in libkaldi-native-fbank-core.a libsherpa-onnx-c-api.a libsherpa-onnx-core.a \
+for f in libkaldi-native-fbank-core.a libkissfft-float.a libsherpa-onnx-c-api.a libsherpa-onnx-core.a \
          libsherpa-onnx-fst.a libsherpa-onnx-fstfar.a libsherpa-onnx-kaldifst-core.a libkaldi-decoder-core.a libssentencepiece_core.a; do
   lipo -create build/simulator_arm64/lib/${f} \
                build/simulator_x86_64/lib/${f} \
@@ -136,6 +136,7 @@ done
 # cannot accept multi archive with the same architecture.
 libtool -static -o build/simulator/sherpa-onnx.a \
   build/simulator/lib/libkaldi-native-fbank-core.a \
+  build/simulator/lib/libkissfft-float.a \
   build/simulator/lib/libsherpa-onnx-c-api.a \
   build/simulator/lib/libsherpa-onnx-core.a  \
   build/simulator/lib/libsherpa-onnx-fst.a   \
@@ -146,6 +147,7 @@ libtool -static -o build/simulator/sherpa-onnx.a \
 
 libtool -static -o build/os64/sherpa-onnx.a \
   build/os64/lib/libkaldi-native-fbank-core.a \
+  build/os64/lib/libkissfft-float.a \
   build/os64/lib/libsherpa-onnx-c-api.a \
   build/os64/lib/libsherpa-onnx-core.a \
   build/os64/lib/libsherpa-onnx-fst.a   \
diff --git a/build-ios.sh b/build-ios.sh
index be61a5d85a..6beb99a1a0 100755
--- a/build-ios.sh
+++ b/build-ios.sh
@@ -127,7 +127,7 @@ cmake --build build/os64 --target install
 echo "Generate xcframework"
 
 mkdir -p "build/simulator/lib"
-for f in libkaldi-native-fbank-core.a libsherpa-onnx-c-api.a libsherpa-onnx-core.a \
+for f in libkaldi-native-fbank-core.a libkissfft-float.a libsherpa-onnx-c-api.a libsherpa-onnx-core.a \
          libsherpa-onnx-fstfar.a libssentencepiece_core.a \
          libsherpa-onnx-fst.a libsherpa-onnx-kaldifst-core.a libkaldi-decoder-core.a \
          libucd.a libpiper_phonemize.a libespeak-ng.a; do
@@ -140,6 +140,7 @@ done
 # cannot accept multi archive with the same architecture.
 libtool -static -o build/simulator/sherpa-onnx.a \
   build/simulator/lib/libkaldi-native-fbank-core.a \
+  build/simulator/lib/libkissfft-float.a \
   build/simulator/lib/libsherpa-onnx-c-api.a \
   build/simulator/lib/libsherpa-onnx-core.a  \
   build/simulator/lib/libsherpa-onnx-fstfar.a   \
@@ -153,6 +154,7 @@ libtool -static -o build/simulator/sherpa-onnx.a \
 
 libtool -static -o build/os64/sherpa-onnx.a \
   build/os64/lib/libkaldi-native-fbank-core.a \
+  build/os64/lib/libkissfft-float.a \
   build/os64/lib/libsherpa-onnx-c-api.a \
   build/os64/lib/libsherpa-onnx-core.a \
   build/os64/lib/libsherpa-onnx-fstfar.a   \
diff --git a/build-swift-macos.sh b/build-swift-macos.sh
index 359ea93714..1e1e8e9c07 100755
--- a/build-swift-macos.sh
+++ b/build-swift-macos.sh
@@ -30,6 +30,7 @@ libtool -static -o ./install/lib/libsherpa-onnx.a \
   ./install/lib/libsherpa-onnx-c-api.a \
   ./install/lib/libsherpa-onnx-core.a \
   ./install/lib/libkaldi-native-fbank-core.a \
+  ./install/lib/libkissfft-float.a \
   ./install/lib/libsherpa-onnx-fstfar.a \
   ./install/lib/libsherpa-onnx-fst.a \
   ./install/lib/libsherpa-onnx-kaldifst-core.a \
diff --git a/c-api-examples/Makefile b/c-api-examples/Makefile
index 40d35d8665..cbaaf63c05 100644
--- a/c-api-examples/Makefile
+++ b/c-api-examples/Makefile
@@ -4,7 +4,7 @@ CUR_DIR :=$(shell pwd)
 CFLAGS := -I ../ -I ../build/_deps/cargs-src/include/
 LDFLAGS := -L ../build/lib
 LDFLAGS += -L ../build/_deps/onnxruntime-src/lib
-LDFLAGS += -lsherpa-onnx-c-api -lsherpa-onnx-core -lkaldi-decoder-core -lsherpa-onnx-kaldifst-core -lsherpa-onnx-fstfar -lsherpa-onnx-fst -lkaldi-native-fbank-core -lpiper_phonemize -lespeak-ng -lucd -lcargs -lonnxruntime
+LDFLAGS += -lsherpa-onnx-c-api -lsherpa-onnx-core -lkaldi-decoder-core -lsherpa-onnx-kaldifst-core -lsherpa-onnx-fstfar -lsherpa-onnx-fst -lkaldi-native-fbank-core -lkissfft-float -lpiper_phonemize -lespeak-ng -lucd -lcargs -lonnxruntime
 LDFLAGS += -framework Foundation
 LDFLAGS += -lc++
 LDFLAGS += -Wl,-rpath,${CUR_DIR}/../build/lib
diff --git a/mfc-examples/NonStreamingSpeechRecognition/sherpa-onnx-deps.props b/mfc-examples/NonStreamingSpeechRecognition/sherpa-onnx-deps.props
index 9217cefaee..9b35d475df 100644
--- a/mfc-examples/NonStreamingSpeechRecognition/sherpa-onnx-deps.props
+++ b/mfc-examples/NonStreamingSpeechRecognition/sherpa-onnx-deps.props
@@ -14,6 +14,7 @@
         sherpa-onnx-fstfar.lib;
         sherpa-onnx-fst.lib;
         kaldi-native-fbank-core.lib;
+        kissfft-float.lib;
         onnxruntime.lib;
         piper_phonemize.lib;
         espeak-ng.lib;
diff --git a/mfc-examples/NonStreamingTextToSpeech/sherpa-onnx-deps.props b/mfc-examples/NonStreamingTextToSpeech/sherpa-onnx-deps.props
index 9217cefaee..9b35d475df 100644
--- a/mfc-examples/NonStreamingTextToSpeech/sherpa-onnx-deps.props
+++ b/mfc-examples/NonStreamingTextToSpeech/sherpa-onnx-deps.props
@@ -14,6 +14,7 @@
         sherpa-onnx-fstfar.lib;
         sherpa-onnx-fst.lib;
         kaldi-native-fbank-core.lib;
+        kissfft-float.lib;
         onnxruntime.lib;
         piper_phonemize.lib;
         espeak-ng.lib;
diff --git a/mfc-examples/StreamingSpeechRecognition/sherpa-onnx-deps.props b/mfc-examples/StreamingSpeechRecognition/sherpa-onnx-deps.props
index 9217cefaee..9b35d475df 100644
--- a/mfc-examples/StreamingSpeechRecognition/sherpa-onnx-deps.props
+++ b/mfc-examples/StreamingSpeechRecognition/sherpa-onnx-deps.props
@@ -14,6 +14,7 @@
         sherpa-onnx-fstfar.lib;
         sherpa-onnx-fst.lib;
         kaldi-native-fbank-core.lib;
+        kissfft-float.lib;
         onnxruntime.lib;
         piper_phonemize.lib;
         espeak-ng.lib;