我不能在xaudio2中播放两次声音

#include <xaudio2.h>
#include <iostream>

// 回调函数
class MyVoiceCallback : public IXAudio2VoiceCallback {
public:
    STDMETHODIMP OnBufferEnd(void* pBufferContext) override {
        // 这里可以处理缓冲区结束的事件
        return S_OK;
    }

    // 其他回调函数...
};

int main() {
    IXAudio2* pXAudio2 = nullptr;
    HRESULT hr = XAudio2Create(&pXAudio2, 0, XAUDIO2_DEFAULT_PROCESSOR);
    if (FAILED(hr)) {
        std::cerr << "Failed to create XAudio2 engine." << std::endl;
        return -1;
    }

    MyVoiceCallback callback;
    IXAudio2MasteringVoice* pMasteringVoice = nullptr;
    hr = pXAudio2->CreateMasteringVoice(&pMasteringVoice, 0, XAUDIO2_DEFAULT_SAMPLERATE, 0, &callback, nullptr);
    if (FAILED(hr)) {
        std::cerr << "Failed to create mastering voice." << std::endl;
        pXAudio2->Release();
        return -1;
    }

    // 加载音频文件
    IXAudio2SourceVoice* pSourceVoice = nullptr;
    XAUDIO2_BUFFER buffer = {0};
    // 假设audioData是加载的音频数据，audioSize是音频数据的大小
    // 这里省略了加载音频文件的代码

    // 创建音频源声音
    hr = pXAudio2->CreateSourceVoice(&pSourceVoice, /* 音频格式 */, 0, XAUDIO2_DEFAULT_FREQ_RATIO, &callback, nullptr, nullptr);
    if (FAILED(hr)) {
        std::cerr << "Failed to create source voice." << std::endl;
        pMasteringVoice->DestroyVoice();
        pXAudio2->Release();
        return -1;
    }

    // 提交音频数据
    buffer.AudioBytes = audioSize;
    buffer.pAudioData = audioData;
    buffer.Flags = XAUDIO2_END_OF_STREAM;
    hr = pSourceVoice->SubmitSourceBuffer(&buffer);
    if (FAILED(hr)) {
        std::cerr << "Failed to submit source buffer." << std::endl;
        pSourceVoice->DestroyVoice();
        pMasteringVoice->DestroyVoice();
        pXAudio2->Release();
        return -1;
    }

    // 播放声音
    pSourceVoice->Start(0);

    // 等待播放完成
    // 这里省略了等待播放完成的代码

    // 重置音频源声音
    pSourceVoice->Stop();
    pSourceVoice->FlushSourceBuffers();

    // 再次播放声音
    pSourceVoice->Start(0);

    // 清理资源
    pSourceVoice->DestroyVoice();
    pMasteringVoice->DestroyVoice();
    pXAudio2->Release();

    return 0;
}