public string API_id = "8888"; //你的ID
public string API_record = null;
public string API_record_format = "wav";
public string API_record_HZ = "16000";
public string API_key = "k2"; //你的KEY
public string API_secret_key = "55519"; //你的SECRRET_KEY
public string API_language = "zh";
public string API_access_token = null;
public string strJSON = "";
//錄音
[DllImport("winmm.dll", EntryPoint = "mciSendString", CharSet = CharSet.Auto)]
public static extern int mciSendString(
string lpstrCommand,
string lpstrReturnString,
int uReturnLength,
int hwndCallback
);
/// <summary>
///
/// </summary>
public Form1()
{
InitializeComponent();
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Form1_Load(object sender, EventArgs e)
{
API_record=Application.StartupPath + "\\上班.wav";
API_access_token = getStrAccess(API_key, API_secret_key);
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
this.textBox2.Text = getStrText(API_id, API_access_token, API_language, API_record, API_record_format, API_record_HZ);
}
/// <summary>
///
/// </summary>
/// <param name="para_API_key">你的KEY</param>
/// <param name="para_API_secret_key">你的SECRRET_KEY</param>
/// <returns></returns>
public string getStrAccess(string para_API_key, string para_API_secret_key)
{
//方法參數說明:
//para_API_key:API_key(你的KEY)
//para_API_secret_key(你的SECRRET_KEY)
//方法返回值說明:
//百度認證口令碼,access_token
string access_html = null;
string access_token = null;
string getAccessUrl = "https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials" +"&client_id=" + para_API_key + "&client_secret=" + para_API_secret_key;
try
{
HttpWebRequest getAccessRequest = WebRequest.Create(getAccessUrl) as HttpWebRequest;
//getAccessRequest.Proxy = null;
getAccessRequest.ContentType = "multipart/form-data";
getAccessRequest.Accept = "*/*";
getAccessRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)";
getAccessRequest.Timeout = 30000;//30秒連接不成功就中斷
getAccessRequest.Method = "post";
HttpWebResponse response = getAccessRequest.GetResponse() as HttpWebResponse;
using (StreamReader strHttpComback = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
{
access_html = strHttpComback.ReadToEnd();
}
}
catch (WebException ex)
{
MessageBox.Show(ex.ToString());
}
JObject jo = JObject.Parse(access_html);
access_token = jo["access_token"].ToString();//得到返回的toke
return access_token;
}
/// <summary>
///
/// </summary>
/// <param name="para_API_id"></param>
/// <param name="para_API_access_token"></param>
/// <param name="para_API_language"></param>
/// <param name="para_API_record"></param>
/// <param name="para_format"></param>
/// <param name="para_Hz"></param>
/// <returns></returns>
public string getStrText(string para_API_id, string para_API_access_token, string para_API_language, string para_API_record, string para_format, string para_Hz)
{
//方法參數說明:
//para_API_id: API_id (你的ID)
//para_API_access_token (getStrAccess(...)方法得到的access_token口令)
//para_API_language (你要識別的語言,zh,en,ct)
//para_API_record(語音文件的路徑)
//para_format(語音文件的格式)
//para_Hz(語音文件的采樣率 16000或者8000)
//該方法返回值:
//該方法執行正確返回值是語音翻譯的文本,錯誤是錯誤號,可以去看百度語音文檔,查看對應錯誤
string strText = null;
string error = null;
FileInfo fi = new FileInfo(para_API_record);
FileStream fs = new FileStream(para_API_record, FileMode.Open);
byte[] voice = new byte[fs.Length];
fs.Read(voice, 0, voice.Length);
fs.Close();
string getTextUrl = "http://vop.baidu.com/server_api?lan=" + para_API_language + "&cuid=" + para_API_id + "&token=" + para_API_access_token;
HttpWebRequest getTextRequst = WebRequest.Create(getTextUrl) as HttpWebRequest;
/* getTextRequst.Proxy = null;
getTextRequst.ServicePoint.Expect100Continue = false;
getTextRequst.ServicePoint.UseNagleAlgorithm = false;
getTextRequst.ServicePoint.ConnectionLimit = 65500;
getTextRequst.AllowWriteStreamBuffering = false;*/
getTextRequst.ContentType = "audio /"+para_format+";rate="+para_Hz;
getTextRequst.ContentLength = fi.Length;
getTextRequst.Method = "post";
getTextRequst.Accept = "*/*";
getTextRequst.KeepAlive = true;
getTextRequst.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)";
getTextRequst.Timeout = 30000;//30秒連接不成功就中斷
using (Stream writeStream = getTextRequst.GetRequestStream())
{
writeStream.Write(voice, 0, voice.Length);
}
HttpWebResponse getTextResponse = getTextRequst.GetResponse() as HttpWebResponse;
using (StreamReader strHttpText = new StreamReader(getTextResponse.GetResponseStream(), Encoding.UTF8))
{
strJSON = strHttpText.ReadToEnd();
}
JObject jsons = JObject.Parse(strJSON);//解析JSON
if (jsons["err_msg"].Value<string>() == "success.")
{
strText = jsons["result"][0].ToString();
return strText;
}
else
{
error = jsons["err_no"].Value<string>() + jsons["err_msg"].Value<string>();
return error;
}
}
參考： http://yuyin.baidu.com/docs/asr/57
語音合成接口支持 POST 和 GET兩種方式
正式地址：http://tsn.baidu.com/text2audio
