public partial class Form1 : Form
    {
        private IAudioPlayer audioPlayer;
        private IMicrophoneCapturer microphoneCapturer;

        public Form1()
        {
            InitializeComponent();
        }

        private void button_mic_Click(object sender, EventArgs e)
        {
            
 
try
            {
                this.microphoneCapturer = CapturerFactory.CreateMicrophoneCapturer(int.Parse(this.textBox_mic.Text));
                this.microphoneCapturer.AudioCaptured += new ESBasic.CbGeneric<byte[]>(microphoneCapturer_AudioCaptured);
                this.audioPlayer = PlayerFactory
 
.CreateAudioPlayer(int.Parse(this.textBox_speaker.Text), 16000, 1, 16, 2);
                this.microphoneCapturer.Start();

                this.label_msg.Text = "正在採集麥克風，並播放 . . .";
                this.label_msg.Visible = true;
                this.button_wav.Enabled = false;
                this.button_mic.Enabled = false
 
;
                this.button_stop.Enabled = true;
            }
            catch (Exception ee)
            {
                MessageBox.Show(ee.Message);
            }
        }

        void microphoneCapturer_AudioCaptured(byte[] audioData)
        {
            if (this.audioPlayer != null)
            {
                this.audioPlayer.Play(audioData);
            }
        }

        private void button_wav_Click(object sender, EventArgs e)
        {
            try
            {
                string path = ESBasic.Helpers.FileHelper.GetFileToOpen2("請選擇要播放的wav檔案", AppDomain.CurrentDomain.BaseDirectory, ".wav");
                if (path == null)
                {
                    return;
                }

                AudioInformation info = PlayerFactory.ParseWaveFile(path);
                if (info.FormatTag != (int)WaveFormats.Pcm)
                {
                    MessageBox.Show("僅僅支援PCM編碼方式的語音資料！");
                    return;
                }

                int secs = info.GetTimeInMsecs() / 1000; //聲音資料的播放時長
                this.audioPlayer = PlayerFactory.CreateAudioPlayer(int.Parse(this.textBox_speaker.Text), info.SampleRate, info.ChannelCount, info.BitsNumber, secs + 1);

                this.audioPlayer.Play(info.AudioData);

                this.label_msg.Text = "正在播放wav檔案 . . .";
                this.label_msg.Visible = true;
                this.button_wav.Enabled = false;
                this.button_mic.Enabled = false;
                this.button_stop.Enabled = true;
            }
            catch (Exception ee)
            {
                MessageBox.Show(ee.Message);
            }
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (this.microphoneCapturer != null)
            {
                this.microphoneCapturer.Stop();
                this.microphoneCapturer.Dispose();
                this.microphoneCapturer = null;
            }

            if (this.audioPlayer != null)
            {
                this.audioPlayer.Dispose();
                this.audioPlayer = null;
            }
        }

        private void button_stop_Click(object sender, EventArgs e)
        {
            if (this.audioPlayer == null)
            {
                return;
            }

            if (this.microphoneCapturer != null)
            {
                this.microphoneCapturer.Stop();
                this.microphoneCapturer.Dispose();
                this.microphoneCapturer = null;
            }

            this.audioPlayer.Clear();
            this.audioPlayer.Dispose();
            this.audioPlayer = null;

            this.label_msg.Visible = false;
            this.button_wav.Enabled = true;
            this.button_mic.Enabled = true;
            this.button_stop.Enabled = false;
        }        
    }