v->height = head.dwHeight;
dwMicroSecPerFrame = head.dwMicroSecPerFrame;
samplesperframe = astream->GetEndPos()/astream->GetEndTime()*head.dwMicroSecPerFrame/1000000;
v->height = head.dwHeight;
dwMicroSecPerFrame = head.dwMicroSecPerFrame;
samplesperframe = astream->GetEndPos()/astream->GetEndTime()*head.dwMicroSecPerFrame/1000000;