diff --git a/src/kiwano-audio/SoundPlayer.cpp b/src/kiwano-audio/SoundPlayer.cpp
index db48a810..3cd35d3d 100644
--- a/src/kiwano-audio/SoundPlayer.cpp
+++ b/src/kiwano-audio/SoundPlayer.cpp
@@ -155,6 +155,11 @@ void SoundPlayer::StopAll()
     }
 }
 
+void SoundPlayer::ReleaseSound(size_t id)
+{
+    sound_cache_.erase(id);
+}
+
 void SoundPlayer::ClearCache()
 {
     sound_cache_.clear();
diff --git a/src/kiwano-audio/SoundPlayer.h b/src/kiwano-audio/SoundPlayer.h
index 6ed8d8f6..1f9acf79 100644
--- a/src/kiwano-audio/SoundPlayer.h
+++ b/src/kiwano-audio/SoundPlayer.h
@@ -40,6 +40,8 @@ KGE_DECLARE_SMART_PTR(SoundPlayer);
 class KGE_API SoundPlayer : public ObjectBase
 {
 public:
+    using SoundMap = Map<size_t, SoundPtr>;
+
     SoundPlayer();
 
     ~SoundPlayer();
@@ -120,6 +122,15 @@ public:
     /// @brief Í£Ö¹ËùÓÐÒôƵ
     void StopAll();
 
+    /// \~chinese
+    /// @brief ÊÍ·ÅÒôÀÖ¶ÔÏ󻺴æ
+    /// @param id ÒôƵ±êʶ·û
+    void ReleaseSound(size_t id);
+
+    /// \~chinese
+    /// @brief »ñÈ¡»º´æ
+    const SoundMap& GetCache() const;
+
     /// \~chinese
     /// @brief Çå³ý»º´æ
     void ClearCache();
@@ -127,10 +138,15 @@ public:
 private:
     float volume_;
 
-    using SoundMap = Map<size_t, SoundPtr>;
     SoundMap sound_cache_;
 };
 
 /** @} */
+
+inline const SoundPlayer::SoundMap& SoundPlayer::GetCache() const
+{
+    return sound_cache_;
+}
+
 }  // namespace audio
 }  // namespace kiwano