diff --git a/src/SokuAddresses.hpp b/src/SokuAddresses.hpp
index 6414f3c..e86d1ef 100644
--- a/src/SokuAddresses.hpp
+++ b/src/SokuAddresses.hpp
@@ -45,6 +45,7 @@ namespace SokuLib
 		ADDR_SWR_FONT_CREATE                        = 0x004116D0,
 		ADDR_SWR_FONT_DESTRUCT                      = 0x00411760,
 		ADDR_SWR_FONT_SET_INDIRECT                  = 0x00411840,
+		ADDR_SWR_CONVERT_VOLUME_TO_DSOUND           = 0x00418B30,
 		ADDR_CNUMBER_RENDER                         = 0x00414940,
 		ADDR_GET_PACKAGED_BGM_CALLER                = 0x00418BE1,
 		ADDR_GET_PACKAGED_SFL_CALLER                = 0x00418F41,
@@ -140,6 +141,8 @@ namespace SokuLib
 		ADDR_VTBL_CDESIGN_SPRITE                    = 0x008710E4,
 		ADDR_VTBL_CDESIGN_GAUGE                     = 0x00871104,
 		ADDR_VTBL_CDESIGN_NUMBER                    = 0x00871124,
+		ADDR_VTBL_CDSBUFFER                         = 0x008713a8,
+		ADDR_VTBL_CDS3DBUFFER                       = 0x00871384,
 		ADDR_VTBL_BITMAPDATA                        = 0x00871474,
 		ADDR_VTBL_PACKAGEREADER                     = 0x0087148C,
 
@@ -167,6 +170,7 @@ namespace SokuLib
 		ADDR_RCHARID                                = 0x00899D30,
 		ADDR_INPUT_MANAGER_CLUSTER                  = 0x0089A248,
 		ADDR_MENU_LIST                              = 0x0089A884,
+		ADDR_SOUND_MANAGER                          = 0x0089F9F8,
 		ADDR_TEXTURE_MANAGER                        = 0x0089FF08,
 		ADDR_WINDOW_HWND                            = 0x0089FF90,
 		ADDR_LOAD_GRAPHICS_THREAD                   = 0x0089FFF4,
diff --git a/src/SoundManager.cpp b/src/SoundManager.cpp
index 09eae1a..233337d 100644
--- a/src/SoundManager.cpp
+++ b/src/SoundManager.cpp
@@ -9,4 +9,26 @@ namespace SokuLib
 {
 	void (* const playSEWaveBuffer)(int id) = reinterpret_cast<void (*)(int id)>(ADDR_PLAY_SE_WAVE_BUFFER);
 	void (* const playNetBell)(int id) = reinterpret_cast<void (*)(int id)>(ADDR_PLAY_NET_BELL);
+	void DSBuffer::Initialize(LPWAVEFORMATEX waveformatex, DWORD bufSize) {
+		(* ((void (__thiscall **)(DSBuffer* , LPWAVEFORMATEX, DWORD)) ADDR_VTBL_CDSBUFFER))(this, waveformatex, bufSize);
+	}
+	void DSBuffer::Delete(bool free) {
+		(* ((void (__thiscall **)(DSBuffer* , bool free)) (ADDR_VTBL_CDSBUFFER + 4)))(this, free);
+	}
+	void DS3DBuffer::Initialize(LPWAVEFORMATEX waveformatex, DWORD bufSize) {
+		(* ((void (__thiscall **)(DSBuffer* , LPWAVEFORMATEX, DWORD)) ADDR_VTBL_CDS3DBUFFER))(this, waveformatex, bufSize);
+	}
+	void DS3DBuffer::Delete(bool free) {
+		(* ((void (__thiscall **)(DSBuffer* , bool free)) (ADDR_VTBL_CDS3DBUFFER + 4)))(this, free);
+	}
+	int (__stdcall *const ConvertFloatVolumeToDSoundVolume)(float volume) = (int (__stdcall *)(float)) ADDR_SWR_CONVERT_VOLUME_TO_DSOUND;
+	bool SoundManager::SetVolumeByDSBufferManagerID(unsigned int id) {
+		if (!id)
+			return false;
+		DSBuffer **buffer = this->DSBufferManager.Get(id);
+		if (!buffer || !*buffer)
+			return false;
+		return (*buffer)->pIDirectSoundBuffer->SetVolume(ConvertFloatVolumeToDSoundVolume(this->SEVolume * this->SEVolumeCoefficient)) == DS_OK;
+	}
+	SoundManager &soundMgr = * (SoundManager *) ADDR_SOUND_MANAGER;
 }
\ No newline at end of file
diff --git a/src/SoundManager.hpp b/src/SoundManager.hpp
index 06307ec..1392539 100644
--- a/src/SoundManager.hpp
+++ b/src/SoundManager.hpp
@@ -4,7 +4,8 @@
 
 #ifndef SOKULIB_SOUNDMANAGER_HPP
 #define SOKULIB_SOUNDMANAGER_HPP
-
+#include "HandleManager.hpp"
+#include "dsound.h"
 
 namespace SokuLib
 {
@@ -16,6 +17,33 @@ namespace SokuLib
 	{
 		((void (*)(const char *))0x43ff10)(path);
 	}
+
+	class WaveBuffer{};
+	class DSBuffer {
+	public:
+		IDirectSoundBuffer * pIDirectSoundBuffer = 0;
+		uint32_t sizeToLock = 0;
+		virtual void Initialize(LPWAVEFORMATEX waveformatex, DWORD bufSize);
+		virtual void Delete(bool free);
+	};
+	class DS3DBuffer : public DSBuffer {
+	public:
+		IDirectSound3DBuffer * pIDirectSound3DBuffer;
+		void Initialize(LPWAVEFORMATEX waveformatex, DWORD bufSize);
+		void Delete(bool free);
+	};
+	class SoundManager : public HandleManager<class WaveBuffer *> {
+	public:
+		HandleManager<class DSBuffer *> DSBufferManager;
+		DSBuffer DSBuffers[32];
+		DS3DBuffer DS3DBuffer[32];
+		char unknown[8];
+		float SEVolume;
+		float SEVolumeCoefficient;
+		bool SetVolumeByDSBufferManagerID(unsigned int id);
+	};
+	extern int (__stdcall *const ConvertFloatVolumeToDSoundVolume)(float volume);
+	extern SoundManager &soundMgr;
 }