win7 使用Core Audio APIs 开发音频功能，为什么IAudioClient::Initialize长时间无法返回？

Question

HRESULT hr = S_OK;

WAVEFORMATEX *pwfx = NULL;

REFERENCE_TIME hnsRequestedDuration = REFTIMES_PER_SEC;

UINT32 nFrames = 0;

IAudioClient *pAudioClient = NULL;

CHECK_HR( hr = pDevice->Activate(
    __uuidof(IAudioClient), 
    CLSCTX_ALL,
    NULL, 
    (void**)&pAudioClient));

CHECK_HR( hr = pAudioClient->GetMixFormat(&pwfx));

hr = pAudioClient->Initialize( 
    AUDCLNT_SHAREMODE_EXCLUSIVE,
    AUDCLNT_STREAMFLAGS_EVENTCALLBACK, 
    hnsRequestedDuration, 
    hnsRequestedDuration, 
    pwfx, 
    NULL);

在WIN7 SP1 64位 Lenovo笔记本 运行程序，会出现pAudioClient->Initialize长时间无法返回的情况，请问这个该如何着手分析？如何解决？

Answer 1

https://blog.csdn.net/lwsas1/article/details/46862195