string filename = $"Call.wav"; //合成的语音文件
#endregion
#region 事件处理
/// <summary>
/// 本地语音识别
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnLocalVoice_Click(object sender, EventArgs e)
{
//业务流程:
//1.调用 MSPLogin(...)接口登入，可以只登入一次，但是必须保证在调用其他接口前先登入；
//2.调用 QISRSessionBegin(...)开始一次语音听写；
//3.循环调用 QISRAudioWrite(...) 分块写入音频数据
//4.循环调用 QISRGetResult(...) 接口返回听写结果
//5.调用 QISRSessionEnd(...) 主动结束本次听写
//6.不再使用服务的时候 调用MSPLogout()登出，避免不必要的麻烦。
try
{
//识别结果
string text = String.Empty;
//登录参数,自己注册后获取的appid
string login_configs = "appid=5983daf6";
//语音路径
var voicePath = AppDomain.CurrentDomain.BaseDirectory + filename;
//检测文件是否存在
if (!File.Exists(voicePath))
{
MessageBox.Show("文件" + voicePath + "不存在！");
}
//读取音频文件
using (FileStream fileStream = new FileStream(voicePath, FileMode.OpenOrCreate))
{
IntPtr intPtr = Marshal.AllocHGlobal(BUFFER_NUM);
byte[] array = new byte[BUFFER_NUM];
LoadingHelper.ShowLoading("加载中", this, o =>
{
AudioStatus audioStatus = AudioStatus.MSP_AUDIO_SAMPLE_CONTINUE;
EpStatus epStatus = EpStatus.MSP_EP_LOOKING_FOR_READY;
RsltStatus recogStatus = RsltStatus.MSP_REC_STATUS_FOR_READY;
//MSPLogin(...)接口登入
this.BeginInvoke(updateStatus, "登录接口");
ret = IFYDll.MSPLogin("*****@*****.**", "jkljlk123", login_configs);
if (ret != (int)ErrorCode.MSP_SUCCESS)
{
return;
}
//QISRSessionBegin 开始一次语音识别
this.BeginInvoke(updateStatus, "开始一次语音识别");
string _params = $"domain=iat,sub=iat,aue=speex-wb;7,sample_rate=16000,result_type=plain";
session_ID = IFYDll.QISRSessionBegin(null, _params, ref ret);
if (ret != (int)ErrorCode.MSP_SUCCESS)
{
return;
}
//QISRAudioWrite 写入本次识别的音频。
this.BeginInvoke(updateStatus, "分块写入识别的音频");
while (fileStream.Position != fileStream.Length)
{
int waveLen = fileStream.Read(array, 0, BUFFER_NUM);
Marshal.Copy(array, 0, intPtr, array.Length);
ret = IFYDll.QISRAudioWrite(Ptr2Str(session_ID), intPtr, (uint)waveLen, audioStatus, ref epStatus, ref recogStatus);
if (ret != 0)
{
fileStream.Close();
throw new Exception("QISRAudioWrite err,errCode=" + ret);
}
Thread.Sleep(500);
}
this.BeginInvoke(updateStatus, "写入最后一块音频");
audioStatus = AudioStatus.MSP_AUDIO_SAMPLE_LAST;
ret = IFYDll.QISRAudioWrite(Ptr2Str(session_ID), intPtr, 1u, audioStatus, ref epStatus, ref recogStatus);
if (ret != 0)
{
throw new Exception("QISRAudioWrite write last audio err,errCode=" + ret);
}
//QISRGetResult 读取识别结果
this.BeginInvoke(updateStatus, "读取识别结果");
while (true)
{
IntPtr intPtr2 = IFYDll.QISRGetResult(Ptr2Str(session_ID), ref recogStatus, waitTime, ref ret);
if (intPtr2 != IntPtr.Zero)
{
text += Ptr2Str(intPtr2);
}
if (ret != 0)
{
break;
}
Thread.Sleep(500);
if (recogStatus == RsltStatus.MSP_REC_STATUS_COMPLETE)
{
break;
}
}
});
txtLocalVoiceRecognitionResult.Text = text;
}
}
catch (Exception ex)
{
txtLocalVoiceRecognitionResult.Text = ex.Message;
}
finally
{
//主动结束本次语音识别
this.BeginInvoke(updateStatus, "结束本次识别结果");
ret = IFYDll.QISRSessionEnd(Ptr2Str(session_ID), "");
//退出登录
this.BeginInvoke(updateStatus, "退出登录");
ret = IFYDll.MSPLogout();
}
Thread.Sleep(3000);
this.BeginInvoke(updateStatus, "就绪");
}
/// <summary>
/// 进行语音识别
/// </summary>
/// <param name="inFile"></param>
/// <returns></returns>
public string AudioToString(string inFile)
{
int ret = 0;
string text = String.Empty;
FileStream fileStream = new FileStream(inFile, FileMode.OpenOrCreate);
byte[] array = new byte[BUFFER_NUM];
IntPtr intPtr = Marshal.AllocHGlobal(BUFFER_NUM);
AudioStatus audioStatus = AudioStatus.MSP_AUDIO_SAMPLE_CONTINUE;
EpStatus epStatus = EpStatus.MSP_EP_LOOKING_FOR_READY;
RsltStatus recogStatus = RsltStatus.MSP_REC_STATUS_FOR_READY;
RsltStatus rsltStatus = RsltStatus.MSP_REC_STATUS_FOR_READY;
while (fileStream.Position != fileStream.Length)
{
int waveLen = fileStream.Read(array, 0, BUFFER_NUM);
Marshal.Copy(array, 0, intPtr, array.Length);
ret = IFYDll.QISRAudioWrite(Ptr2Str(session_ID), intPtr, (uint)waveLen, audioStatus, ref epStatus, ref recogStatus);
if (ret != 0)
{
fileStream.Close();
throw new Exception("QISRAudioWrite err,errCode=" + ret);
}
if (recogStatus == 0)
{
IntPtr intPtr2 = IFYDll.QISRGetResult(Ptr2Str(session_ID), ref rsltStatus, 0, ref ret);
if (intPtr2 != IntPtr.Zero)
{
text += Ptr2Str(intPtr2);
}
}
Thread.Sleep(500);
}
fileStream.Close();
audioStatus = AudioStatus.MSP_AUDIO_SAMPLE_LAST;
ret = IFYDll.QISRAudioWrite(Ptr2Str(session_ID), intPtr, 1u, audioStatus, ref epStatus, ref recogStatus);
if (ret != 0)
{
throw new Exception("QISRAudioWrite write last audio err,errCode=" + ret);
}
int timesCount = 0;
while (true)
{
IntPtr intPtr2 = IFYDll.QISRGetResult(Ptr2Str(session_ID), ref rsltStatus, 0, ref ret);
if (intPtr2 != IntPtr.Zero)
{
text += Ptr2Str(intPtr2);
}
if (ret != 0)
{
break;
}
Thread.Sleep(200);
if (rsltStatus == RsltStatus.MSP_REC_STATUS_COMPLETE || timesCount++ >= 50)
{
break;
}
}
return(text);
}