Convert Microphone Audio To MemoryStream

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Hi, I've been trying to figure out how i can take the microphone data and convert it into a memorystream so I could send it over the network. I've been following this tutorial
http://www.giawa.com/tutorials/?p=70
with NAudio to get the microphone data I just don't know how I can convert into a stream and then convert it back to something useful with NAudio afterwards. I am not very experience with NAudio nor have I really worked with audio in c# before. Any help would be greatly appreciated even if it uses another platform than NAudio. Thanks.

Also I have seen the following tutorial but had trouble trying to use it
http://csharpwithmaddy.blogspot.ca/2008/01/sending-and-playing-microphone-audio.html

Posted 16-Jul-12 6:47am

Member 8601135

Updated 16-Jul-12 6:55am

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Sergey Alexandrovich Kryukov 16-Jul-12 13:59pm

You cannot "convert" data to stream. You can fill the stream with data, write data to stream, etc. I understand this is only the terminology, but putting things right often helps to solve the problem (which is really easy in this case).
--SA

Member 8601135 17-Jul-12 16:48pm

I understand that although you say my problem is easy? Can you please help me then?

I was looking at the following function I have figured out how to fill the memory stream but have not figured out how to convert it back (I know its not converting it but I don't know how else to word that).

<pre lang="c#">
private void button5_Click(object sender, EventArgs e)
{
if (sourceList.SelectedItems.Count == 0) return;

SaveFileDialog save = new SaveFileDialog();
save.Filter = "Wave File (*.wav)|*.wav;";
if (save.ShowDialog() != System.Windows.Forms.DialogResult.OK) return;

int deviceNumber = sourceList.SelectedItems[0].Index;

sourceStream = new NAudio.Wave.WaveIn();
sourceStream.DeviceNumber = deviceNumber;
sourceStream.WaveFormat = new NAudio.Wave.WaveFormat(44100, NAudio.Wave.WaveIn.GetCapabilities(deviceNumber).Channels);

sourceStream.DataAvailable += new EventHandler<naudio.wave.waveineventargs>(sourceStream_DataAvailable);
waveWriter = new NAudio.Wave.WaveFileWriter(save.FileName, sourceStream.WaveFormat);

sourceStream.StartRecording();
}
</pre>

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Sergey Alexandrovich Kryukov · Answer 1 · 2012-07-17T17:08:00

Please see the definition of the class NAudio.Wave.WaveFileWriter. Among others, it has this constructor:

C#

public WaveFileWriter(Stream outStream, WaveFormat format) { /*...*/ }

where outStream is a stream to be written to. So, it can be a memory stream (but why?) or, according to your purpose, better be a network stream.

—SA