SecondaryBuffer 构造函数提示“值不在预期范围内”

Question

求帮助            DevicesCollection dc = new DevicesCollection();
            Guid g;
            g = dc[1].DriverGuid;
            dv = new Device(g);
            dv.SetCooperativeLevel(this, CooperativeLevel.Normal);
            wfx = new WaveFormat();
            wfx.FormatTag = WaveFormatTag.Pcm;  //4
            wfx.Channels = 1;   //2
            wfx.SamplesPerSecond = 8000;  //4
            wfx.BitsPerSample = 16;  //2
            wfx.BlockAlign = (short)(wfx.BitsPerSample / 8 * wfx.Channels);  //2
            wfx.AverageBytesPerSecond = wfx.SamplesPerSecond * wfx.BlockAlign * 3;  //4
            bd = new BufferDescription();
            bd.Format = wfx;
            bd.BufferBytes = wfx.AverageBytesPerSecond;
            bd.ControlVolume = true;
            bd.ControlPositionNotify = true;
            bd.CanGetCurrentPosition = true;
            bd.Control3D = false;
            bd.ControlEffects = false;
            bd.ControlFrequency = true;
            bd.ControlPan = true;
            bd.GlobalFocus = true;
            SecondaryBuffer buf = new SecondaryBuffer(bd, dv);              值不在预期范围内

Answer 1

调试吧，跟踪SecondaryBuffer构造函数，估计数据格式不正确