diff --git a/.gitmodules b/.gitmodules
index fc7d77a..8d234b0 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
-[submodule "src/viper/kissfft"]
-	path = src/viper/kissfft
-	url = git@github.com:mborgerding/kissfft.git
+[submodule "src/viper/ffts"]
+	path = src/viper/ffts
+	url = git@github.com:anthonix/ffts.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6c55da3..807d7d7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,12 +11,8 @@ project("ViPER4Android")
 add_compile_definitions(VERSION_CODE=20221231)
 add_compile_definitions(VERSION_NAME="0.1.0")
 
-## KISS FFT
-#set(KISSFFT_PKGCONFIG OFF)
-#set(KISSFFT_STATIC ON)
-#set(KISSFFT_TEST OFF)
-#set(KISSFFT_TOOLS OFF)
-#add_subdirectory(src/cpp/viper/kissfft)
+# FFTS
+add_subdirectory(src/viper/ffts)
 
 # ViPERFX
 include_directories(src/include)
diff --git a/src/viper/ffts b/src/viper/ffts
new file mode 160000
index 0000000..fe86885
--- /dev/null
+++ b/src/viper/ffts
@@ -0,0 +1 @@
+Subproject commit fe86885ecafd0d16eb122f3212403d1d5a86e24e
diff --git a/src/viper/utils/PConvSingle.cpp b/src/viper/utils/PConvSingle.cpp
index 455f544..9d18f84 100644
--- a/src/viper/utils/PConvSingle.cpp
+++ b/src/viper/utils/PConvSingle.cpp
@@ -3,8 +3,8 @@
 #include "PConvSingle.h"
 
 PConvSingle::PConvSingle() {
-    this->enabled = false;
-    this->segments = 0;
+    this->instanceUsable = false;
+    this->segmentCount = 0;
     this->segmentSize = 0;
 //    this->data = nullptr;
 }
@@ -30,7 +30,7 @@ int PConvSingle::GetFFTSize() {
 }
 
 int PConvSingle::GetSegmentCount() {
-    return this->segments;
+    return this->segmentCount;
 }
 
 int PConvSingle::GetSegmentSize() {
@@ -38,18 +38,18 @@ int PConvSingle::GetSegmentSize() {
 }
 
 bool PConvSingle::InstanceUsable() {
-    return this->enabled;
+    return this->instanceUsable;
 }
 
 int PConvSingle::LoadKernel(float *buf, int param_2, int segmentSize) {
     if (buf != nullptr && param_2 > 0 && segmentSize > 0 && segmentSize % 2 == 0) {
-        this->enabled = false;
+        this->instanceUsable = false;
         ReleaseResources();
-//        this->data = new PConvData(); //(PConvData *) malloc(0x140);  // TODO: Sizeof
+        this->data = new PConvData(); //(PConvData *) malloc(0x140);  // TODO: Sizeof
         this->segmentSize = segmentSize;
         int n = ProcessKernel(buf, param_2, 1);
         if (n != 0) {
-            this->enabled = true;
+            this->instanceUsable = true;
             return n;
         }
         ReleaseResources();
@@ -84,18 +84,20 @@ int PConvSingle::ProcessKernel(int param_2, float *param_3, int param_4, int par
 }
 
 void PConvSingle::ReleaseResources() {
-    // TODO
-    this->enabled = false;
-    this->segments = 0;
+    if (this->data != nullptr) {
+        // TODO
+    }
+    this->instanceUsable = false;
+    this->segmentCount = 0;
     this->segmentSize = 0;
 }
 
 void PConvSingle::Reset() {
-    if (!this->enabled) return;
+    if (!this->instanceUsable) return;
     // TODO
 }
 
 void PConvSingle::UnloadKernel() {
-    this->enabled = false;
+    this->instanceUsable = false;
     ReleaseResources();
 }
diff --git a/src/viper/utils/PConvSingle.h b/src/viper/utils/PConvSingle.h
index 43289cc..3e4610e 100644
--- a/src/viper/utils/PConvSingle.h
+++ b/src/viper/utils/PConvSingle.h
@@ -1,6 +1,9 @@
 #pragma once
 
 class PConvSingle {
+    struct PConvData {
+
+    };
 public:
     PConvSingle();
 
@@ -34,7 +37,8 @@ public:
 
     void UnloadKernel();
 
-    bool enabled;
-    int segments, segmentSize;
-//    PConvData *data;  // TODO: Type
+    bool instanceUsable;
+    int segmentCount;
+    int segmentSize;
+    PConvData *data;
 };