科大接口调用文档：
/doc/asr/voicedictation/Linux-SDK.html#_2、sdk集成指南
from ctypes import *import timeimport threading# 调用动态链接库dll = cdll.LoadLibrary("../Linux_iat1226_xxxxxxx/libs/x64/libmsc.so")# 登录参数，apppid一定要和你的下载SDK对应login_params = b"appid = xxxxxx, work_dir = ."FRAME_LEN = 640 # ByteMSP_SUCCESS = 0# 返回结果状态MSP_AUDIO_SAMPLE_FIRST = c_int(1)MSP_AUDIO_SAMPLE_CONTINUE = c_int(2)MSP_AUDIO_SAMPLE_LAST = c_int(4)MSP_REC_STATUS_COMPLETE = c_int(5)# 你的语音文件路径filename = "./f1.wav"class Msp:def __init__( self ):self.recogStatus = c_int(8)self.counter = 0self.laststr = ''self.sessionID = Noneself.epStatus = Noneself.count = 0def login( self ):ret = dll.MSPLogin(None, None, login_params)# print('MSPLogin =>', ret)def logout( self ):ret = dll.MSPLogout()# print('MSPLogout =>', ret)def isr( self, audiofile, session_begin_params ):ret = c_int()self.sessionID = c_voidp()dll.QISRSessionBegin.restype = c_char_pself.sessionID = dll.QISRSessionBegin(None, session_begin_params, byref(ret))print('QISRSessionBegin => self.sessionID:', self.sessionID, 'ret:', ret.value)# 每秒【1000ms】 16000 次 * 16 bit 【20B】 ，每毫秒：1.6 * 16bit 【1.6*2B】 = 32Byte# 1帧音频20ms【640B】 每次写入 10帧=200ms 【6400B】# piceLne = FRAME_LEN * 20piceLne = 1638 * 2self.epStatus = c_int(0)self.recogStatus = c_int(0)wavFile = open(audiofile, 'rb')while wavFile:wavData = wavFile.read(piceLne)aud_stat = MSP_AUDIO_SAMPLE_CONTINUEif (self.count == 0):aud_stat = MSP_AUDIO_SAMPLE_FIRST # 第一句if len(wavData) <= 0:# print('最后一句话')ret = dll.QISRAudioWrite(self.sessionID, None, 0, MSP_AUDIO_SAMPLE_LAST, byref(self.epStatus),byref(self.recogStatus))#print('send last ,recogStatus:',self.recogStatus.value,'ret:',ret)breakelse:ret = dll.QISRAudioWrite(self.sessionID, wavData, len(wavData), aud_stat,byref(self.epStatus),byref(self.recogStatus))#print('len(wavData):', len(wavData), 'QISRAudioWrite ret:', ret, 'epStatus:', self.epStatus.value, 'recogStatus:', self.recogStatus.value)self.count += 1time.sleep(0.1)if self.recogStatus.value==0:self.get_result()wavFile.close()print("所有待识别音频已全部发送完毕")while self.recogStatus.value != 5:self.get_result()time.sleep(1)def get_result( self , ):#print('开始获取识别结果', self.recogStatus.value)ret = c_int(0)dll.QISRGetResult.restype = c_char_pretstr = dll.QISRGetResult(self.sessionID, byref(self.recogStatus), 0, byref(ret))#print("error code : ", ret.value, 'recogStatus:', self.recogStatus.value)if retstr is not None:self.laststr += retstr.decode()print(self.laststr)if self.recogStatus.value == 5:ret = dll.QISRSessionEnd(self.sessionID, 'end')print('语音识别结束')return self.laststrdef XF_text( filepath, audiorate ):msp = Msp()print("登录科大讯飞")msp.login()print("科大讯飞登录成功")session_begin_params = b"sub = iat, ptt = 0, result_encoding = utf8, result_type = plain, domain = iat"if 16000 == audiorate:session_begin_params = b"sub = iat, domain = iat, language = zh_cn, accent = mandarin, sample_rate = 16000, result_type = plain, result_encoding = utf8,vad_enable=0"text = msp.isr(filepath, session_begin_params)msp.logout()return textif __name__ == '__main__':res = XF_text(filename, 16000)
