diff --git a/include/Makefile.in b/include/Makefile.in
index fa4e90402de..8e40b90a3da 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -838,6 +838,7 @@ SOURCES = \
 	wuapi.idl \
 	x3daudio.h \
 	xact.h \
+	xact2wb.h \
 	xact3.h \
 	xact3wb.h \
 	xapo.idl \
diff --git a/include/xact.h b/include/xact.h
index 5f9372a9366..03a354e69a9 100644
--- a/include/xact.h
+++ b/include/xact.h
@@ -23,6 +23,7 @@
 #include <objbase.h>
 #include <float.h>
 #include <limits.h>
+#include <xact2wb.h>
 
 #if XACT3_VER == 0x0210
     DEFINE_GUID(CLSID_XACTEngine, 0x65d822a4, 0x4799, 0x42c6, 0x9b, 0x18, 0xd2, 0x6c, 0xf6, 0x6d, 0xd3, 0x20);
diff --git a/include/xact2wb.h b/include/xact2wb.h
new file mode 100644
index 00000000000..5950382f514
--- /dev/null
+++ b/include/xact2wb.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2020 Vijay Kiran Kamuju
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef __XACT2WB_H__
+#define __XACT2WB_H__
+
+#include <pshpack1.h>
+
+typedef DWORD WAVEBANKOFFSET;
+
+#define WAVEBANK_HEADER_SIGNATURE 0x444e4257 /* DNBW */
+#define WAVEBANK_BANKNAME_LENGTH  64
+#define WAVEBANK_ENTRYNAME_LENGTH 64
+
+#define WAVEBANK_TYPE_BUFFER    0x00000000
+#define WAVEBANK_TYPE_STREAMING 0x00000001
+#define WAVEBANK_TYPE_MASK      0x00000001
+
+#define WAVEBANK_FLAGS_ENTRYNAMES    0x00010000
+#define WAVEBANK_FLAGS_COMPACT       0x00020000
+#define WAVEBANK_FLAGS_SYNC_DISABLED 0x00040000
+#define WAVEBANK_FLAGS_SEEKTABLES    0x00080000
+
+#define WAVEBANK_DVD_SECTOR_SIZE 2048
+#define WAVEBANK_DVD_BLOCK_SIZE  (WAVEBANK_DVD_SECTOR_SIZE * 16)
+#define WAVEBANK_ALIGNMENT_MIN   4
+#define WAVEBANK_ALIGNMENT_DVD   WAVEBANK_DVD_SECTOR_SIZE
+
+typedef enum WAVEBANKSEGIDX
+{
+    WAVEBANK_SEGIDX_BANKDATA = 0,
+    WAVEBANK_SEGIDX_ENTRYMETADATA,
+    WAVEBANK_SEGIDX_SEEKTABLES,
+    WAVEBANK_SEGIDX_ENTRYNAMES,
+    WAVEBANK_SEGIDX_ENTRYWAVEDATA,
+    WAVEBANK_SEGIDX_COUNT
+} WAVEBANKSEGIDX, *LPWAVEBANKSEGIDX;
+typedef const WAVEBANKSEGIDX *LPCWAVEBANKSEGIDX;
+
+#define WAVEBANKMINIFORMAT_TAG_PCM   0x0
+#define WAVEBANKMINIFORMAT_TAG_XMA   0x1
+#define WAVEBANKMINIFORMAT_TAG_ADPCM 0x2
+
+#define WAVEBANKMINIFORMAT_BITDEPTH_8  0x0
+#define WAVEBANKMINIFORMAT_BITDEPTH_16 0x1
+
+typedef union WAVEBANKMINIWAVEFORMAT
+{
+    struct
+    {
+        DWORD wFormatTag : 2;
+        DWORD nChannels : 3;
+        DWORD nSamplesPerSec : 18;
+        DWORD wBlockAlign : 8;
+        DWORD wBitsPerSample : 1;
+    };
+    DWORD dwValue;
+} WAVEBANKMINIWAVEFORMAT, *LPWAVEBANKMINIWAVEFORMAT;
+typedef const WAVEBANKMINIWAVEFORMAT *LPCWAVEBANKMINIWAVEFORMAT;
+
+typedef struct WAVEBANKREGION
+{
+    DWORD dwOffset;
+    DWORD dwLength;
+} WAVEBANKREGION, *LPWAVEBANKREGION;
+typedef const WAVEBANKREGION *LPCWAVEBANKREGION;
+
+typedef struct WAVEBANKSAMPLEREGION
+{
+    DWORD dwStartSample;
+    DWORD dwTotalSamples;
+} WAVEBANKSAMPLEREGION, *LPWAVEBANKSAMPLEREGION;
+typedef const WAVEBANKSAMPLEREGION *LPCWAVEBANKSAMPLEREGION;
+
+typedef struct WAVEBANKHEADER
+{
+    DWORD dwSignature;
+    DWORD dwVersion;
+#if XACT3_VER >= 0x0205
+    DWORD dwHeaderVersion;
+#endif
+    WAVEBANKREGION Segments[WAVEBANK_SEGIDX_COUNT];
+} WAVEBANKHEADER, *LPWAVEBANKHEADER;
+typedef const WAVEBANKHEADER *LPCWAVEBANKHEADER;
+
+#define WAVEBANKENTRY_XMASTREAMS_MAX  3
+#define WAVEBANKENTRY_XMACHANNELS_MAX 6
+
+#define WAVEBANKENTRY_FLAGS_READAHEAD         0x00000001
+#define WAVEBANKENTRY_FLAGS_LOOPCACHE         0x00000002
+#define WAVEBANKENTRY_FLAGS_REMOVELOOPTAIL    0x00000004
+#define WAVEBANKENTRY_FLAGS_IGNORELOOP        0x00000008
+#define WAVEBANKENTRY_FLAGS_MASK              0x00000008
+
+typedef struct WAVEBANKENTRY
+{
+    union
+    {
+        struct
+        {
+            DWORD dwFlags : 4;
+            DWORD Duration : 28;
+        };
+        DWORD dwFlagsAndDuration;
+    };
+
+    WAVEBANKMINIWAVEFORMAT Format;
+    WAVEBANKREGION PlayRegion;
+#if XACT3_VER >= 0x0202
+    WAVEBANKSAMPLEREGION LoopRegion;
+#else
+    union
+    {
+        WAVEBANKREGION LoopRegion;
+        struct
+        {
+            DWORD dwStartOffset;
+            DWORD nSubframeSkip : 2;
+            DWORD nSubframeEnd : 2;
+            DWORD dwEndOffset : 28;
+        } XMALoopRegion[WAVEBANKENTRY_XMASTREAMS_MAX];
+        WAVEBANKREGION LoopRegionAlias[WAVEBANKENTRY_XMASTREAMS_MAX];
+    };
+#endif
+} WAVEBANKENTRY, *LPWAVEBANKENTRY;
+typedef const WAVEBANKENTRY *LPCWAVEBANKENTRY;
+
+typedef struct WAVEBANKENTRYCOMPACT
+{
+    DWORD dwOffset : 21;
+    DWORD dwLengthDeviation : 11;
+} WAVEBANKENTRYCOMPACT, *LPWAVEBANKENTRYCOMPACT;
+typedef const WAVEBANKENTRYCOMPACT *LPCWAVEBANKENTRYCOMPACT;
+
+typedef struct WAVEBANKDATA
+{
+    DWORD dwFlags;
+    DWORD dwEntryCount;
+    CHAR szBankName[WAVEBANK_BANKNAME_LENGTH];
+    DWORD dwEntryMetaDataElementSize;
+    DWORD dwEntryNameElementSize;
+    DWORD dwAlignment;
+    WAVEBANKMINIWAVEFORMAT CompactFormat;
+    FILETIME BuildTime;
+} WAVEBANKDATA, *LPWAVEBANKDATA;
+typedef const WAVEBANKDATA *LPCWAVEBANKDATA;
+
+#include <poppack.h>
+
+#endif /* __XACT2WB_H__ */