Windows 8 在Metro XAudio2和windows Metro上播放声音会引发异常

我正在尝试在windows8上播放pcm udp音频流。有没有比xaudio2更简单的方法

我是xaudio2的新手，创建xaudio播放器对我来说是个例外：

public ref class Player sealed
{
public:
    void feedData(Platform::Array<unsigned char> ^byteArray)
    {
        buffer.AudioBytes = byteArray->Length;
        buffer.pAudioData = new byte[byteArray->Length];
                    memcpy(buffer.pAudioData, &byteArray[0], byteArray->Length);
        if( FAILED(hr = SourceVoice->SubmitSourceBuffer( &buffer ) ) )
            throw Platform::Exception::CreateException(hr);
    }
    Player()
    {
        HRESULT hr;
        if ( FAILED(hr = XAudio2Create( &XAudio2, 0, XAUDIO2_DEFAULT_PROCESSOR ) ) )
            throw Platform::Exception::CreateException(hr);

        if ( FAILED(hr = XAudio2->CreateMasteringVoice( &MasterVoice ) ) )
            throw Platform::Exception::CreateException(hr);

        ZeroMemory(&wfx,sizeof(WAVEFORMATEXTENSIBLE));
        wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
        wfx.Format.nChannels = 1;
        wfx.Format.nSamplesPerSec = 16000;
        wfx.Format.nAvgBytesPerSec = 32000;
        wfx.Format.nBlockAlign = 2;
        wfx.Format.wBitsPerSample = 16;
        if( FAILED(hr = XAudio2->CreateSourceVoice( &SourceVoice, (WAVEFORMATEX*)&wfx ) ))
            throw Platform::Exception::CreateException(hr);
        if ( FAILED(hr = SourceVoice->Start( 0 ) ) )
            throw Platform::Exception::CreateException(hr);
    }
    ~Player()
    {
        MasterVoice->DestroyVoice();
        SourceVoice->DestroyVoice();
    }
private:
    Microsoft::WRL::ComPtr<IXAudio2> XAudio2;
    IXAudio2MasteringVoice* MasterVoice;
    IXAudio2SourceVoice* SourceVoice;
    WAVEFORMATEXTENSIBLE wfx;
    XAUDIO2_BUFFER buffer;
};

---

我通过了调试器，wfx和SourceVoice结构看起来很好。有人能帮我找出哪里出了问题吗？

错误代码是-2003435519或0x7769FFFF。我在事件查看器中也找不到任何内容。很抱歉，找到了问题。如果通道为1或2，则wfx.Format.wFormatTag需要为WAVE_Format_PCM，无论结构是否定义为WaveFormatTextEnsible。能否将您的解决方案作为答案发布？使用解决方案编辑上述代码。我的意思是：在StackOverflow上，我们尝试让“答案”回答“问题”，它比解析注释更容易阅读。

if( FAILED(hr = XAudio2->CreateSourceVoice( &SourceVoice, (WAVEFORMATEX*)&wfx ) ))
    throw Platform::Exception::CreateException(hr);