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NAUDIO.dll C# event handler issue

  1. May 4, 2014 #1
    This is one of the many code samples i've tried for NAUDIO,but on all of them they say that += new EventHandler<StoppedEventArgs> is incorrect. There is no other issue. Anybody know whats happening?

    Code (Text):

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using NAudio;
    using System.Windows.Forms;
    using NAudio.Wave;
    using NAudio.Utils;
    using NAudio.Mixer;
    using NAudio.Midi;

    using System.Timers;

    namespace WindowsFormsApplication4
        public partial class Form1 : Form
            public Form1()

             public WaveIn waveSource = null;
        public WaveFileWriter waveFile = null;
        public string RECORDING_PATH;

        public void AudioRecorder(string fileName)
            RECORDING_PATH = fileName;

        public void Start()
            waveSource = new WaveIn();
            waveSource.WaveFormat = new WaveFormat(44100, 1);
            waveSource.DeviceNumber = 0;
            waveSource.DataAvailable += new EventHandler<WaveInEventArgs>(waveSource_DataAvailable);
            waveSource.RecordingStopped += new EventHandler<StoppedEventArgs>(waveSource_RecordingStopped);

            waveFile = new WaveFileWriter(RECORDING_PATH, waveSource.WaveFormat);

            System.Timers.Timer t = new System.Timers.Timer(30000);

            t.Elapsed += new ElapsedEventHandler(Stop);




        private void Stop(object sender, ElapsedEventArgs args)

        private void waveSource_DataAvailable(object sender, WaveInEventArgs e)
            if (waveFile != null)
                waveFile.WriteData(e.Buffer, 0, e.BytesRecorded);

        private void waveSource_RecordingStopped(object sender, StoppedEventArgs e)
            if (waveSource != null)
                waveSource = null;

            if (waveFile != null)
                waveFile = null;


  2. jcsd
  3. May 4, 2014 #2


    Staff: Mentor

    You aren't coding this as a console application, are you?

    Some more information would be helpful, such as the version of NAudio you're using, and a detailed description of the error you're seeing.
  4. May 4, 2014 #3


    User Avatar
    Gold Member

    Are you getting this error at runtime or compile time? It compiles fine for me.
  5. May 5, 2014 #4
    I think I just had an incompatible version because I referenced the DLL from one of my other projects and it works fine. Thanks anyways, apologies for the inconveniance.
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