Windows下使用Python 调用科大讯飞TTS引擎离线转换文本到语音

使用前将讯飞SDK bin下的文件及文件夹复制到当前文件夹下。

py -3 ttsdemo.py

 

#! /usr/bin/env python# -*- coding: utf-8 -*-# python version >3.5__author__ = 'onestab'import sys, os, timefrom datetime import datetimefrom ctypes import *dll = windll.LoadLibrary("msc.dll")login_params = b"appid = 12345678, work_dir = ."session_begin_params = b"engine_type = local, voice_name = xiaoyan, text_encoding = UTF8, tts_res_path = fo|res\\tts\\xiaoyan.jet;fo|res\\tts\\common.jet, sample_rate = 16000, speed = 80, volume = 70, pitch = 50, rdn = 0"wav_header = b'RIFF6n\x06\x00WAVEfmt \x10\x00\x00\x00\x01\x00\x01\x00\x80>\x00\x00\x00}\x00\x00\x02\x00\x10\x00data\x00\x00\x00\x00'MSP_SUCCESS = 0MSP_TTS_FLAG_STILL_HAVE_DATA = 1MSP_TTS_FLAG_DATA_END = 2MSP_TTS_FLAG_CMD_CANCELED = 4filename = "tts_sample.wav"class Msp:def __init__(self):passdef login(self):ret = dll.MSPLogin(None, None, login_params)print(('MSPLogin =>'), ret)def tts(self, text, filename, session_begin_params):ret, audio_len, synth_status, getret, wav_datasize = c_int(), c_int(), c_int(), c_int(), c_int() sessionID = dll.QTTSSessionBegin(session_begin_params, byref(ret))ret = dll.QTTSTextPut(sessionID, text, len(text), None)wavFile = open(filename, 'wb')wavFile.write(wav_header)while True:data = dll.QTTSAudioGet(sessionID, byref(audio_len), byref(synth_status), byref(getret))if audio_len.value>0:print('datasize:            %d\r' % wav_datasize.value, end='\r')if getret.value != MSP_SUCCESS:breakif data:wavFile.write(string_at(data, audio_len))wav_datasize.value += audio_len.valueif synth_status.value == MSP_TTS_FLAG_DATA_END:break#time.sleep(0.01)# fix wav headerWAVE_HEADER_SIZE = 44if wav_datasize.value>0:wav_size8 = c_int()wav_size8.value = WAVE_HEADER_SIZE + wav_datasize.value - 8wavFile.seek(4)wavFile.write(wav_size8)wavFile.seek(40)wavFile.write(wav_datasize)wavFile.close()dll.QTTSSessionEnd(sessionID, "Normal")if __name__ == "__main__":text = "欢迎来到方工的CSDN博客。CSDN创立于1999年，是中国专业的IT技术社区和开发者服务平台。拥有5000万注册用户以及60万注册企业及合作伙伴。"print(text)msp = Msp()msp.login()msp.tts(text.encode('U8'), filename, session_begin_params)

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关于Python3 以上遇到access violation reading错误的问题，是64位和32位指针兼容的bug。暂时修复如下

def tts(self, text, filename, session_begin_params):ret, audio_len, synth_status, getret, wav_datasize = c_int(), c_int(), c_int(), c_int(), c_int() # fix return typedll.QTTSSessionBegin.restype = ctypes.c_char_pdll.QTTSAudioGet.restype = ctypes.c_uint64

 代码其他部分不变，除了python3.7 64位，装入的是msc_64.dll）