public void SpeechRecognition() // 初始化语音识别
{
int ret = (int)ErrorCode.MSP_SUCCESS;
string login_params = String.Format("appid={0},word_dir= . ", appKey);//appid和msc.dll要配套
#region 参数
/*
* sub:本次识别请求的类型 iat 连续语音识别; asr 语法、关键词识别,默认为iat
* domain:领域 iat：连续语音识别 asr：语法、关键词识别 search：热词 video：视频 poi：地名 music：音乐 默认为iat。 注意：sub=asr时，domain只能为asr
* language:语言 zh_cn：简体中文 zh_tw：繁体中文 en_us：英文 默认值：zh_cn
* accent:语言区域 mandarin：普通话 cantonese：粤语 lmz：四川话 默认值：mandarin
* sample_rate:音频采样率 可取值：16000，8000 默认值：16000 离线识别不支持8000采样率音频
* result_type:结果格式 可取值：plain，json 默认值：plain
* result_encoding:识别结果字符串所用编码格式 GB2312;UTF-8;UNICODE 不同的格式支持不同的编码： plain:UTF-8,GB2312 json:UTF-8
*/
#endregion
session_begin_params = "sub=iat,domain=iat,language=zh_cn,accent=mandarin,sample_rate=16000,result_type=plain,result_encoding=utf8";
string Username = "";
string Password = "";
ret = MSCDLL.MSPLogin(Username, Password, login_params);
if ((int)ErrorCode.MSP_SUCCESS != ret)//不成功
{
//Console.WriteLine("失败了");
Console.WriteLine("MSPLogin failed,error code:{0}", ret.ToString());
MSCDLL.MSPLogout();
}
}
//语音识别
private void RunIAT(List <VoiceData> VoiceBuffer, string session_begin_params)
{
IntPtr session_id = IntPtr.Zero;
string rec_result = string.Empty;
string hints = "正常结束";
AudioStatus aud_stat = AudioStatus.ISR_AUDIO_SAMPLE_CONTINUE;
EpStatus ep_stat = EpStatus.ISR_EP_LOOKING_FOR_SPEECH;
RecogStatus rec_stat = RecogStatus.ISR_REC_STATUS_SUCCESS;
int errcode = (int)ErrorCode.MSP_SUCCESS;
session_id = MSCDLL.QISRSessionBegin(null, session_begin_params, ref errcode);
if ((int)ErrorCode.MSP_SUCCESS != errcode)
{
SetText("\nQISRSessionBegin failed! error code:" + errcode);
return;
}
for (int i = 0; i < VoiceBuffer.Count(); i++)
{
aud_stat = AudioStatus.ISR_AUDIO_SAMPLE_CONTINUE;
if (i == 0)
{
aud_stat = AudioStatus.ISR_AUDIO_SAMPLE_FIRST;
}
errcode = MSCDLL.QISRAudioWrite(PtrToStr(session_id), VoiceBuffer[i].data, (uint)VoiceBuffer[i].data.Length, aud_stat, ref ep_stat, ref rec_stat);
if ((int)ErrorCode.MSP_SUCCESS != errcode)
{
MSCDLL.QISRSessionEnd(PtrToStr(session_id), null);
}
}
errcode = MSCDLL.QISRAudioWrite(PtrToStr(session_id), null, 0, AudioStatus.ISR_AUDIO_SAMPLE_LAST, ref ep_stat, ref rec_stat);
if ((int)ErrorCode.MSP_SUCCESS != errcode)
{
SetText("\nQISRAudioWrite failed! error code:" + errcode);
return;
}
while (RecogStatus.ISR_REC_STATUS_SPEECH_COMPLETE != rec_stat)
{
IntPtr rslt = MSCDLL.QISRGetResult(PtrToStr(session_id), ref rec_stat, 0, ref errcode);
if ((int)ErrorCode.MSP_SUCCESS != errcode)
{
SetText("\nQISRGetResult failed, error code: " + errcode);
break;
}
if (IntPtr.Zero != rslt)
{
string tempRes = PtrToStr(rslt);
rec_result = rec_result + tempRes;
if (rec_result.Length >= BUFFER_SIZE)
{
SetText("\nno enough buffer for rec_result !\n");
break;
}
}
}
int errorcode = MSCDLL.QISRSessionEnd(PtrToStr(session_id), hints);
//语音识别结果
if (rec_result.Length != 0)
{
SetText(rec_result);
//返回错误代码10111时，可调用SpeechRecognition()函数执行MSPLogin
}
}