/// <summary> /// 单次语音识别方法 /// </summary> /// <param name="sid"></param> /// <returns></returns> private static RecogStatus SingleSpeechRecognition(string ssid) { rec_result = ""; byte[] audio_buffer = Utils.GetFileData(mt.voice_path + "/rec.wav"); long audio_size = audio_buffer.Length; long audio_count = 0; ep_status = epStatus.MSP_EP_LOOKING_FOR_SPEECH; while (epStatus.MSP_EP_AFTER_SPEECH != ep_status) { audio_stat = audioStatus.MSP_AUDIO_SAMPLE_CONTINUE; long len = 10 * FRAME_LEN; //16k音频,10帧 (时长200ms) if (audio_size < 2 * len) { len = (int)audio_size; } if (len <= 0) { break; } if (0 == audio_count) { audio_stat = audioStatus.MSP_AUDIO_SAMPLE_FIRST; } ret = MSC.QISRAudioWrite(ssid, audio_buffer.Skip((int)audio_count).Take((int)len).ToArray(), (uint)len, audio_stat, ref ep_status, ref recoStatus); if (ret != (int)ErrorCode.MSP_SUCCESS) { Debug.Log(string.Format("读取音频失败:{0}!", ret)); return(RecogStatus.ISR_REC_NULL); } audio_count += len; audio_size -= len; } ret = MSC.QISRAudioWrite(ssid, null, 0, audioStatus.MSP_AUDIO_SAMPLE_LAST, ref ep_status, ref recoStatus); if (ret != (int)ErrorCode.MSP_SUCCESS) { Debug.Log(string.Format("识别音频失败:{0}!", ret)); return(RecogStatus.ISR_REC_NULL); } while (RecogStatus.ISR_REC_STATUS_SPEECH_COMPLETE != recoStatus) { IntPtr rslt = MSC.QISRGetResult(ssid, ref recoStatus, 0, ref ret); if (ret != (int)ErrorCode.MSP_SUCCESS) { Debug.Log(string.Format("音频无法识别:{0}!", ret)); return(RecogStatus.ISR_REC_NULL); } if (rslt != IntPtr.Zero) { rec_result = rec_result + Utils.Ptr2Str(rslt); if (rec_result.Length >= BUFFER_SIZE) { Debug.Log("no enough buffer for rec_result"); return(RecogStatus.ISR_REC_NULL); } } Thread.Sleep(150); //防止频繁占用CPU } return(recoStatus); }
/// <summary> /// 语音识别方法 /// </summary> /// <param name="sid"></param> public static void SpeechRecognition(List <VoiceData> VoiceBuffer) { audio_stat = audioStatus.MSP_AUDIO_SAMPLE_CONTINUE; ep_status = epStatus.MSP_EP_LOOKING_FOR_SPEECH; recoStatus = RecogStatus.ISR_REC_STATUS_SUCCESS; sid = Utils.Ptr2Str(MSC.QISRSessionBegin(string.Empty, speech_param, ref ret)); Debug.Log(string.Format("-->开启一次语音识别[{0}]", sid)); if (ret != (int)ErrorCode.MSP_SUCCESS) { Debug.Log("加载失败!"); return; } for (int i = 0; i < VoiceBuffer.Count(); i++) { audio_stat = audioStatus.MSP_AUDIO_SAMPLE_CONTINUE; if (i == 0) { audio_stat = audioStatus.MSP_AUDIO_SAMPLE_FIRST; } ret = MSC.QISRAudioWrite(sid, VoiceBuffer[i].data, (uint)VoiceBuffer[i].data.Length, audio_stat, ref ep_status, ref recoStatus); if ((int)ErrorCode.MSP_SUCCESS != ret) { MSC.QISRSessionEnd(sid, null); } } ret = MSC.QISRAudioWrite(sid, null, 0, audioStatus.MSP_AUDIO_SAMPLE_LAST, ref ep_status, ref recoStatus); if ((int)ErrorCode.MSP_SUCCESS != ret) { Debug.Log("\nQISRAudioWrite failed! error code:" + ret); return; } while (RecogStatus.ISR_REC_STATUS_SPEECH_COMPLETE != recoStatus) { IntPtr rslt = MSC.QISRGetResult(sid, ref recoStatus, 0, ref ret); if ((int)ErrorCode.MSP_SUCCESS != ret) { Debug.Log("\nQISRGetResult failed, error code: " + ret); break; } if (IntPtr.Zero != rslt) { string tempRes = Utils.Ptr2Str(rslt); ask_rec_result = ask_rec_result + tempRes; if (ask_rec_result.Length >= BUFFER_SIZE) { Debug.Log("\nno enough buffer for rec_result !\n"); break; } } } int errorcode = MSC.QISRSessionEnd(sid, "正常结束"); //语音识别结果 if (ask_rec_result.Length != 0) { FlowManage.P2MMode(nar); Debug.Log("识别结果是:" + ask_rec_result); ask_rec_result = ""; } }
public static extern int QISRAudioWrite(string sessionID, byte[] waveData, uint waveLen, audioStatus audioStatus, ref epStatus epStatus, ref RecogStatus recogStatus);