百度云语音识别，Audio2Txt（c#）

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.IO;
using System.Threading; namespace TestBaiDuAudio2Txt
{
public partial class Form1 : Form
{
string token = "";
string filename = Application.StartupPath + "\\3.wav";
string apiKey = "";//对应百度云界面基本信息的API Key
string secretKey = "";//对应百度云界面基本信息的Secret Key
string cuid = "";//这个随便写 不过尽量写唯一的，比如自己创建个guid，或者你手机号码什么的都可以
string getTokenURL = "";
string serverURL = "http://vop.baidu.com/server_api";
public Form1()
{
InitializeComponent();
cuid = Guid.NewGuid().ToString();
// getToken();
// Post();
} //这个方法得到一个密钥，这个密钥可以使用1个月，1个月之后要重新请求一次获得一个
private void getToken()
{
getTokenURL = "https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials" +
"&client_id=" + apiKey + "&client_secret=" + secretKey;
token = GetValue("access_token");
} private string GetValue(string key)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(getTokenURL);
HttpWebResponse response = (HttpWebResponse)request.GetResponse(); StreamReader reader1 = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
string ssss = reader1.ReadToEnd().Replace("\"", "").Replace("{", "").Replace("}", "").Replace("\n", "");
string[] indexs = ssss.Split(',');
foreach (string index in indexs)
{
string[] _indexs = index.Split(':');
if (_indexs[] == key)
return _indexs[];
}
return "";
} private void Post()
{ serverURL += "?lan=en&cuid=kwwwvagaa&token=" + token;
FileStream fs = new FileStream(filename, FileMode.Open);
byte[] voice = new byte[fs.Length];
fs.Read(voice, , voice.Length);
fs.Close();
fs.Dispose(); HttpWebRequest request = null; Uri uri = new Uri(serverURL);
request = (HttpWebRequest)WebRequest.Create(uri);
request.Timeout = ;
request.Method = "POST";
request.ContentType = "audio/wav; rate=8000";
request.ContentLength = voice.Length;
try
{
using (Stream writeStream = request.GetRequestStream())
{
writeStream.Write(voice, , voice.Length);
writeStream.Close();
writeStream.Dispose();
}
}
catch
{
return;
}
string result = string.Empty;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
using (Stream responseStream = response.GetResponseStream())
{
using (StreamReader readStream = new StreamReader(responseStream, Encoding.UTF8))
{
string line = string.Empty;
StringBuilder sb = new StringBuilder();
while (!readStream.EndOfStream)
{
line = readStream.ReadLine();
sb.Append(line);
sb.Append("\r");
} // result = readStream.ReadToEnd(); result = sb.ToString(); //message = result.Substring(result.IndexOf("utterance") + 12);
//message = message.Substring(0, message.IndexOf("\""));
readStream.Close();
readStream.Dispose();
MessageBox.Show(result);
}
responseStream.Close();
responseStream.Dispose();
}
response.Close();
} this.textBox1.BeginInvoke(new MethodInvoker(delegate()
{
this.textBox1.Text = result;
})); } private void button1_Click(object sender, EventArgs e)
{
Thread th = new Thread(Post);
th.IsBackground = true;
th.Start();
} }
}