OpenAL中的加载声音问题

Question

我有问题加载声音与OpenAL:

// in SoundManager.cs
public void LoadSound(string soundId, string path)
        {
            // Generate a buffer.
            int buffer = -1;
            Al.alGenBuffers(1, out buffer);
            int errorCode = Al.alGetError();
            System.Diagnostics.Debug.Assert(errorCode == Al.AL_NO_ERROR);
            int format;
            float frequency;
            int size;
            System.Diagnostics.Debug.Assert(File.Exists(path));
            IntPtr data = Alut.alutLoadMemoryFromFile(path, out format, out size,
            out frequency);
            System.Diagnostics.Debug.Assert(data != IntPtr.Zero, "Problem");
            // Load wav data into the generated buffer.
            Al.alBufferData(buffer, format, data, size, (int)frequency);
            // Everything seems ok, add it to the library.
            _soundIdentifier.Add(soundId, new SoundSource(buffer, path));
        }
// Form.cs
 private void InitializeSounds()
        {            
            _soundManager.LoadSound("effect", "soundA.wav");            
        }

1. soundIdentifier是一个字典，在SoundSource中我保留了声音的信息，第一个字符串是声音的正常名称，如"cow"，"horse"或其他。

2. 我调用InitializeSounds from Form.cs和LoadSound是一个声音管理器的方法。

3. Alut。alutLoadMemoryFromFile导致错误，由于某种原因返回空指针。

我用c#和Tao.OpenAL一起工作。

你需要重新安装open al.到这里重新安装。

http://connect.creativelabs.com/openal/Downloads/Forms/AllItems.aspx