diff --git a/Workspace_msvc/lib_dec.vcxproj b/Workspace_msvc/lib_dec.vcxproj
index cc2f5b5b40c012651e340043296dd839aa9db577..7140de37cd245e02485dc0b5122034ecd8ba9da5 100644
--- a/Workspace_msvc/lib_dec.vcxproj
+++ b/Workspace_msvc/lib_dec.vcxproj
@@ -270,7 +270,6 @@
     <ClCompile Include="..\lib_dec\jbm_jb4_inputbuffer.c" />
     <ClCompile Include="..\lib_dec\jbm_jb4_jmf.c" />
     <ClCompile Include="..\lib_dec\jbm_pcmdsp_apa.c" />
-    <ClCompile Include="..\lib_dec\jbm_pcmdsp_fifo.c" />
     <ClCompile Include="..\lib_dec\jbm_pcmdsp_similarityestimation.c" />
     <ClCompile Include="..\lib_dec\jbm_pcmdsp_window.c" />
     <ClCompile Include="..\lib_dec\LD_music_post_filter.c" />
@@ -318,7 +317,6 @@
     <ClInclude Include="..\lib_dec\jbm_jb4_inputbuffer.h" />
     <ClInclude Include="..\lib_dec\jbm_jb4_jmf.h" />
     <ClInclude Include="..\lib_dec\jbm_pcmdsp_apa.h" />
-    <ClInclude Include="..\lib_dec\jbm_pcmdsp_fifo.h" />
     <ClInclude Include="..\lib_dec\jbm_pcmdsp_similarityestimation.h" />
     <ClInclude Include="..\lib_dec\jbm_pcmdsp_window.h" />
     <ClInclude Include="..\lib_dec\lib_dec.h" />
diff --git a/Workspace_msvc/lib_dec.vcxproj.filters b/Workspace_msvc/lib_dec.vcxproj.filters
index 9ca8447fb5d6e9be282bc4540f819572758cf7e5..2555449b1bf3dbb55ee58288114914cd547dd311 100644
--- a/Workspace_msvc/lib_dec.vcxproj.filters
+++ b/Workspace_msvc/lib_dec.vcxproj.filters
@@ -415,9 +415,6 @@
     <ClCompile Include="..\lib_dec\jbm_pcmdsp_apa.c">
       <Filter>decoder_all_c</Filter>
     </ClCompile>
-    <ClCompile Include="..\lib_dec\jbm_pcmdsp_fifo.c">
-      <Filter>decoder_all_c</Filter>
-    </ClCompile>
     <ClCompile Include="..\lib_dec\jbm_pcmdsp_similarityestimation.c">
       <Filter>decoder_all_c</Filter>
     </ClCompile>
@@ -532,9 +529,6 @@
     <ClInclude Include="..\lib_dec\jbm_jb4sb.h">
       <Filter>decoder_h</Filter>
     </ClInclude>
-    <ClInclude Include="..\lib_dec\jbm_pcmdsp_fifo.h">
-      <Filter>decoder_h</Filter>
-    </ClInclude>
     <ClInclude Include="..\lib_dec\jbm_pcmdsp_apa.h">
       <Filter>decoder_h</Filter>
     </ClInclude>
diff --git a/lib_dec/jbm_pcmdsp_fifo.c b/lib_dec/jbm_pcmdsp_fifo.c
deleted file mode 100644
index b7e56ebfd62c6f39c8c83d7dc5311e54475b5bff..0000000000000000000000000000000000000000
--- a/lib_dec/jbm_pcmdsp_fifo.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/******************************************************************************************************
-
-   (C) 2022-2026 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.
-
-*******************************************************************************************************/
-
-/*====================================================================================
-    EVS Codec 3GPP TS26.443 Nov 04, 2021. Version 12.14.0 / 13.10.0 / 14.6.0 / 15.4.0 / 16.3.0
-  ====================================================================================*/
-
-/*! @file jbm_pcmdsp_fifo.c Ringbuffer (FIFO) with fixed capacity for audio samples */
-
-#include <stdint.h>
-#include "options.h"
diff --git a/lib_dec/jbm_pcmdsp_fifo.h b/lib_dec/jbm_pcmdsp_fifo.h
deleted file mode 100644
index 6ba641f61f105bcfd9399a2177f2fdd6360dcf02..0000000000000000000000000000000000000000
--- a/lib_dec/jbm_pcmdsp_fifo.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/******************************************************************************************************
-
-   (C) 2022-2026 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.
-
-*******************************************************************************************************/
-
-/*====================================================================================
-    EVS Codec 3GPP TS26.443 Nov 04, 2021. Version 12.14.0 / 13.10.0 / 14.6.0 / 15.4.0 / 16.3.0
-  ====================================================================================*/
-
-/*! @file jbm_pcmdsp_fifo.h Ringbuffer (FIFO) with fixed capacity for audio samples. */
-
-#ifndef JBM_PCMDSP_FIFO_H
-#define JBM_PCMDSP_FIFO_H JBM_PCMDSP_FIFO_H
-
-#include <stdint.h>
-#include "options.h"
-#endif /* JBM_PCMDSP_FIFO_H */
diff --git a/lib_dec/lib_dec.c b/lib_dec/lib_dec.c
index 63f78a94903e16f22cc54966c4b626f9cfa7fe79..feb370ac8899e10adcc2019afd75f3cdf3621e5f 100644
--- a/lib_dec/lib_dec.c
+++ b/lib_dec/lib_dec.c
@@ -40,7 +40,6 @@
 #include "prot.h"
 #include "jbm_jb4sb.h"
 #include "jbm_pcmdsp_apa.h"
-#include "jbm_pcmdsp_fifo.h"
 #include <math.h>
 #include <assert.h>
 #ifdef DEBUGGING