将wave转换为字节数组

Question

I'm new in c# and i want to send voice over ip but I have a problem here.

private Byte[] arr;

private void send()
{
     arr = File.ReadAllBytes("wave path");
     con = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

     // ...

     con.Send(arr, 0, arr.length, 0);
     con.Close();
}

Now its ok i can convert wave to byte by

File.ReadAllBytes("wave path");

But actually I want to send wave from microphone Directly (not from wave File)

So I use NAudio.dll for record audio and this is the code

private void button2_Click(object sender, EventArgs e)
{
    int devicenum = 0;
    sourcestream = new NAudio.Wave.WaveIn();
    sourcestream.DeviceNumber = devicenum;
    sourcestream.WaveFormat = new NAudio.Wave.WaveFormat(4410, NAudio.Wave.WaveIn.GetCapabilities(devicenum).Channels);
    NAudio.Wave.WaveInProvider waveIn = new NAudio.Wave.WaveInProvider(sourcestream);

    waveOut = new NAudio.Wave.DirectSoundOut();
    waveOut.Init(waveIn);
    sourcestream.StartRecording();
    waveOut.Play();
}

and i test it its play audio from microphone

how can i convert waveOut to array byte so i can send it

 waveOut.Play();

I found some videos write audio to wave file and again read byte from file. Any way to convert audio Directly to array byte?

Answer 1

Initialize the WaveOut instance with a BufferedWaveProvider . This will allow you to add blocks of samples to be played by writing them to the BufferedWaveProvider , like this:

waveOut = new WaveOut())
var provider = new BufferedWaveProvider(waveFormat);
waveOut.Init(provider);
waveOut.Play();

provider.AddSamples(sampleBuffer, 0, sampleBuffer.Length);

So in your network receiver code that is getting the samples from the remote sender you add the buffers (after decoding, of course) into the BufferedWaveProvider and it will play.