Allows to track only one (default) microphone volume meter.

[srhtbynkln]

Hello,
I am trying to track multiple microphone input volume level, but I am able to track only default microphone level if not open (Sound--> Recording Devices ) settings. When this settings open two or more microphone level possible to track, but if not it is allows only default microphone level to track.
And also it gives buffer full exception,

Here is code:

public Form1()
       {
           InitializeComponent();
           initMethods();
           sourceStrem = new NAudio.Wave.WaveIn();
           sourceStrem.WaveFormat = new NAudio.Wave.WaveFormat(44100, NAudio.Wave.WaveIn.GetCapabilities(0).Channels); //44100 khz 
           sourceStrem.StartRecording();
           sourceStrem.DataAvailable += new EventHandler<NAudio.Wave.WaveInEventArgs>(sourceStream_DataAvailableForCecking);

           sourceStrem2 = new NAudio.Wave.WaveIn();
           sourceStrem2.WaveFormat = new NAudio.Wave.WaveFormat(44100, NAudio.Wave.WaveIn.GetCapabilities(1).Channels); //44100 khz 
           sourceStrem2.StartRecording();
           sourceStrem2.DataAvailable += new EventHandler<NAudio.Wave.WaveInEventArgs>(sourceStream_DataAvailableForCecking);

           MMDeviceEnumerator enumerator = new MMDeviceEnumerator();
           var devices = enumerator.EnumerateAudioEndPoints(DataFlow.Capture, DeviceState.Active); //DeviceState.Active
           for (int i = 0; i < devices.Count; i++)
           {
               if (i == 0)
               {
                   firstMic = devices.ElementAt(i);
               }
               else if (i == 1)
               {
                   firstMic = devices.ElementAt(i-1);
                   secondMic = devices.ElementAt(i);
               }

           }
       }
       private void sourceStream_DataAvailableForCecking(object sender, WaveInEventArgs e)
       {
           progressBar1.Value = (int)(Math.Round(firstMic.AudioMeterInformation.MasterPeakValue * 100)); //PC_VolumeControl.VolumeControl.GetVolume(); 
           labelVolumeLevel1.Text = ((int)(Math.Round(firstMic.AudioMeterInformation.MasterPeakValue * 100))).ToString();
           progressBar2.Value = (int)(Math.Round(secondMic.AudioMeterInformation.MasterPeakValue * 100));
           labelVolumeLevel2.Text = ((int)(Math.Round(secondMic.AudioMeterInformation.MasterPeakValue * 100))).ToString();
       }

[markheath]

You're assuming that the MMDeviceEnumerator returns devices in the same order as WaveIn, which I don't think is valid. It would be better to use WASAPI exclusively for this task, and not try to involve WaveIn.

What's the stack trace for the buffer full exception?