diff --git a/Workspace_msvc/decoder.vcxproj b/Workspace_msvc/decoder.vcxproj
index 160d4f7df7972204f12dd6a414e480e0a48b6a22..a27712c39684c30c579f3517fa57d9a7927be406 100644
--- a/Workspace_msvc/decoder.vcxproj
+++ b/Workspace_msvc/decoder.vcxproj
@@ -151,8 +151,6 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="..\apps\decoder.c" />
-    <ClCompile Include="..\lib_util\test_fft.c" />
-    <ClCompile Include="..\lib_util\test_mdct.c" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="lib_basop.vcxproj">
@@ -178,4 +176,4 @@
       <UserProperties DevPartner_IsInstrumented="0" />
     </VisualStudio>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/Workspace_msvc/lib_util.vcxproj b/Workspace_msvc/lib_util.vcxproj
index 73a48f23e8967698270fd835193b8da1b580b7bb..bae9cde5b779a981218ca951b862e89bdc83e178 100644
--- a/Workspace_msvc/lib_util.vcxproj
+++ b/Workspace_msvc/lib_util.vcxproj
@@ -110,7 +110,6 @@
     <ClCompile Include="..\lib_util\cmdl_tools.c" />
     <ClCompile Include="..\lib_util\evs_rtp_payload.c" />
     <ClCompile Include="..\lib_util\g192.c" />
-    <ClCompile Include="..\lib_util\test_fft.c" />
     <ClCompile Include="..\lib_util\vector3_pair_file_reader.c" />
     <ClCompile Include="..\lib_util\hrtf_file_reader.c" />
     <ClCompile Include="..\lib_util\ism_file_reader.c" />
diff --git a/lib_util/test_fft.c b/lib_util/test_fft.c
deleted file mode 100644
index 1b52fe3512080b239eba547175ecc7bd3e758bfc..0000000000000000000000000000000000000000
--- a/lib_util/test_fft.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/******************************************************************************************************
-
-   (C) 2022-2025 IVAS codec Public Collaboration with portions copyright Dolby International AB, Ericsson AB,
-   Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
-   Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
-   Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
-   contributors to this repository. All Rights Reserved.
-
-   This software is protected by copyright law and by international treaties.
-   The IVAS codec Public Collaboration consisting of Dolby International AB, Ericsson AB,
-   Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
-   Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
-   Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
-   contributors to this repository retain full ownership rights in their respective contributions in
-   the software. This notice grants no license of any kind, including but not limited to patent
-   license, nor is any license granted by implication, estoppel or otherwise.
-
-   Contributors are required to enter into the IVAS codec Public Collaboration agreement before making
-   contributions.
-
-   This software is provided "AS IS", without any express or implied warranties. The software is in the
-   development stage. It is intended exclusively for experts who have experience with such software and
-   solely for the purpose of inspection. All implied warranties of non-infringement, merchantability
-   and fitness for a particular purpose are hereby disclaimed and excluded.
-
-   Any dispute, controversy or claim arising under or in relation to providing this software shall be
-   submitted to and settled by the final, binding jurisdiction of the courts of Munich, Germany in
-   accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and
-   the United Nations Convention on Contracts on the International Sales of Goods.
-
-*******************************************************************************************************/
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <math.h>
-#include <float.h>
-#include "assert.h"
-#include "basop32.h"
-
-#define ALLOWED_DEVIATION ( 0.005 )
-#define Q31               ( 2147483647.0f )
-
-#ifndef min
-#define min( a, b ) ( ( ( a ) < ( b ) ) ? ( a ) : ( b ) )
-#endif
-
-#ifndef max
-#define max( a, b ) ( ( ( a ) > ( b ) ) ? ( a ) : ( b ) )
-#endif
diff --git a/lib_util/test_fft.h b/lib_util/test_fft.h
deleted file mode 100644
index 6c962909072a7f02a71735bc6c860c44c8975abf..0000000000000000000000000000000000000000
--- a/lib_util/test_fft.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/******************************************************************************************************
-
-   (C) 2022-2025 IVAS codec Public Collaboration with portions copyright Dolby International AB, Ericsson AB,
-   Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
-   Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
-   Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
-   contributors to this repository. All Rights Reserved.
-
-   This software is protected by copyright law and by international treaties.
-   The IVAS codec Public Collaboration consisting of Dolby International AB, Ericsson AB,
-   Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
-   Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
-   Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
-   contributors to this repository retain full ownership rights in their respective contributions in
-   the software. This notice grants no license of any kind, including but not limited to patent
-   license, nor is any license granted by implication, estoppel or otherwise.
-
-   Contributors are required to enter into the IVAS codec Public Collaboration agreement before making
-   contributions.
-
-   This software is provided "AS IS", without any express or implied warranties. The software is in the
-   development stage. It is intended exclusively for experts who have experience with such software and
-   solely for the purpose of inspection. All implied warranties of non-infringement, merchantability
-   and fitness for a particular purpose are hereby disclaimed and excluded.
-
-   Any dispute, controversy or claim arising under or in relation to providing this software shall be
-   submitted to and settled by the final, binding jurisdiction of the courts of Munich, Germany in
-   accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and
-   the United Nations Convention on Contracts on the International Sales of Goods.
-
-*******************************************************************************************************/
-
-#ifndef __TEST_FFT_H
-#define __TEST_FFT_H
-
-#include "options.h"
-
-void run_fft_unit_test( void );
-
-
-#endif /* __TEST_FFT_H */
diff --git a/lib_util/test_mdct.c b/lib_util/test_mdct.c
deleted file mode 100644
index 69d83588da32356d4ea43d4512beea7be73244e2..0000000000000000000000000000000000000000
--- a/lib_util/test_mdct.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/******************************************************************************************************
-
-   (C) 2022-2025 IVAS codec Public Collaboration with portions copyright Dolby International AB, Ericsson AB,
-   Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
-   Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
-   Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
-   contributors to this repository. All Rights Reserved.
-
-   This software is protected by copyright law and by international treaties.
-   The IVAS codec Public Collaboration consisting of Dolby International AB, Ericsson AB,
-   Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
-   Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
-   Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
-   contributors to this repository retain full ownership rights in their respective contributions in
-   the software. This notice grants no license of any kind, including but not limited to patent
-   license, nor is any license granted by implication, estoppel or otherwise.
-
-   Contributors are required to enter into the IVAS codec Public Collaboration agreement before making
-   contributions.
-
-   This software is provided "AS IS", without any express or implied warranties. The software is in the
-   development stage. It is intended exclusively for experts who have experience with such software and
-   solely for the purpose of inspection. All implied warranties of non-infringement, merchantability
-   and fitness for a particular purpose are hereby disclaimed and excluded.
-
-   Any dispute, controversy or claim arising under or in relation to providing this software shall be
-   submitted to and settled by the final, binding jurisdiction of the courts of Munich, Germany in
-   accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and
-   the United Nations Convention on Contracts on the International Sales of Goods.
-
-*******************************************************************************************************/
-
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <math.h>
-#include <float.h>
-
-typedef int Word32;
-typedef short Word16;
-typedef short int16_t;
-
-#define TYPE_MDCT      ( 0 )
-#define TYPE_IMDCT     ( 1 )
-#define TYPE_EDCT2     ( 2 )
-#define TYPE_NEG_EDCT2 ( 3 )
-
-#define ALLOWED_DEVIATION ( 0.05 )
-#define Q31               ( 2147483647.0f )