通过声音拨打电话

去年暑假在家看都市报道的g3行动组说通过声音也能拨打固定电话，所以就忍不住试了一下。

原理：固定电话是通过声音的频率来确定用户按的是哪个键，各个键频率不一样，所发出声音也就不一样，因此就可以通过声音来拨打电话。

具体过程：

首先要下载0~9的音频文件。

下载地址：http://dl.dbank.com/c06h3zhg4w

编写waveplay 动态链接库，将声音资源导入其中。

public static  void WavePlaySound(char num)
        {
            switch (num)
            {
                case '0':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._0);
                        simpleSound.Play();
                    }
                    break;
                case '1':
                     {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._1);
                        simpleSound.Play();
                    }
                    break;
                case '2':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._2);
                        simpleSound.Play();
                    }
                    break;
                case '3':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._3);
                        simpleSound.Play();
                    }
                    break;
                case '4':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._4);
                        simpleSound.Play();
                    }
                    break;
                case '5':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._5);
                        simpleSound.Play();
                    }
                    break;
                case '6':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._6);
                        simpleSound.Play();
                    }
                    break;
                case '7':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._7);
                        simpleSound.Play();
                    }
                    break;
                case '8':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._8);
                        simpleSound.Play();
                    }
                    break;
                case '9':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources._9);
                        simpleSound.Play();
                    }
                    break;
                case '#':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources.井号);
                        simpleSound.Play();
                    }
                    break;
                case '*':
                    {
                        SoundPlayer simpleSound = new SoundPlayer(WavePlay.Properties.Resources.星号);
                        simpleSound.Play();
                    }
                    break;
            }
           
        }

最后新建一个工程将waveplay.dl 引入到工程之中，直接调用方法

public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
        }


        void sound(object sender, EventArgs e) 
        {
            Play.WavePlaySound(Convert.ToChar(((Button)sender).Text));
        }

        private void button13_Click(object sender, EventArgs e)
        {
            Play.WavePlaySound(textBox1.Text);
        }

使用方法：拿起电话听筒，靠近电脑音箱，拨号，最后电话就打通了。

下载地址：http://dl.dbank.com/c0ws5dmi02