录制语音并与naudio一起播放

录制时出现问题，我无法播放。layers表示可能不支持此项目的文件格式。

        private void button1_Click(object sender, EventArgs e)
    {
        recorder = new WaveIn();
        recorder.WaveFormat = new WaveFormat(44100, 1);
        recorder.StartRecording();
    }
    private void button2_Click(object sender, EventArgs e)
    {
        var filewriter = new WaveFileWriter("C:''Users''oguzhan''ödev''deneme.wav", recorder.WaveFormat);
        recorder.StopRecording();
        WaveStream mainOutputStream = new WaveFileReader("C:''Users''oguzhan''ödev''deneme.wav");
        WaveChannel32 volumeStream = new WaveChannel32(mainOutputStream);
        player = new WaveOut();
        player.Init(volumeStream);
        player.Play();
    }