因为有朋友需要将录音转成文字, 给我的是m4a格式, 我给转成txt发给他的.
我找了找, 发现网上很多都是收费软件,而且转换结果不尽人意., 最后决定使用讯飞服务来完成转换, 讯飞语音转写api支持大文件, 转换结果也十分准确, 感谢讯飞及制作demo的大佬yanmeng2, 嘻嘻
1先注册账号, 获取key…
在讯飞开放平台(https://passport.xfyun.cn/login)注册账号, 然后创建应用.
再去新用户送5小时转换时间, 需要去领取 (http://www.xfyun.cn/services/lfasr).
选择已创建应用程序的已收到奖励
[En]
Select the received reward to the created application
进入应用(如下页面)拿到需要的参数
; 2 修改代码, 将值输入并确定,
3 执行
打开cmd, 输入 python D:\workspace\python\weblfasr_python3_demo\weblfasr_python3_demo.py
执行完毕后, 就可以在 代码设置的to_file中看到结果了
源码:
import base64
import hashlib
import hmac
import json
import os
import time
import requests
lfasr_host = 'http://raasr.xfyun.cn/api'
api_prepare = '/prepare'
api_upload = '/upload'
api_merge = '/merge'
api_get_progress = '/getProgress'
api_get_result = '/getResult'
file_piece_sice = 10485760
lfasr_type = 0
has_participle = 'false'
has_seperate = 'true'
max_alternatives = 0
suid = ''
class SliceIdGenerator:
"""slice id生成器"""
def __init__(self):
self.__ch = 'aaaaaaaaa`'
def getNextSliceId(self):
ch = self.__ch
j = len(ch) - 1
while j >= 0:
cj = ch[j]
if cj != 'z':
ch = ch[:j] + chr(ord(cj) + 1) + ch[j + 1:]
break
else:
ch = ch[:j] + 'a' + ch[j + 1:]
j = j - 1
self.__ch = ch
return self.__ch
class RequestApi(object):
def __init__(self, appid, secret_key, upload_file_path, to_file):
self.appid = appid
self.secret_key = secret_key
self.upload_file_path = upload_file_path
self.to_file = to_file
def gene_params(self, apiname, taskid=None, slice_id=None):
appid = self.appid
secret_key = self.secret_key
upload_file_path = self.upload_file_path
ts = str(int(time.time()))
m2 = hashlib.md5()
m2.update((appid + ts).encode('utf-8'))
md5 = m2.hexdigest()
md5 = bytes(md5, encoding='utf-8')
signa = hmac.new(secret_key.encode('utf-8'), md5, hashlib.sha1).digest()
signa = base64.b64encode(signa)
signa = str(signa, 'utf-8')
file_len = os.path.getsize(upload_file_path)
file_name = os.path.basename(upload_file_path)
param_dict = {}
if apiname == api_prepare:
slice_num = int(file_len / file_piece_sice) + (0 if (file_len % file_piece_sice == 0) else 1)
param_dict['app_id'] = appid
param_dict['signa'] = signa
param_dict['ts'] = ts
param_dict['file_len'] = str(file_len)
param_dict['file_name'] = file_name
param_dict['slice_num'] = str(slice_num)
elif apiname == api_upload:
param_dict['app_id'] = appid
param_dict['signa'] = signa
param_dict['ts'] = ts
param_dict['task_id'] = taskid
param_dict['slice_id'] = slice_id
elif apiname == api_merge:
param_dict['app_id'] = appid
param_dict['signa'] = signa
param_dict['ts'] = ts
param_dict['task_id'] = taskid
param_dict['file_name'] = file_name
elif apiname == api_get_progress or apiname == api_get_result:
param_dict['app_id'] = appid
param_dict['signa'] = signa
param_dict['ts'] = ts
param_dict['task_id'] = taskid
return param_dict
def gene_request(self, apiname, data, files=None, headers=None):
response = requests.post(lfasr_host + apiname, data=data, files=files, headers=headers)
result = json.loads(response.text)
if result["ok"] == 0:
print("{} success:".format(apiname) + str(result))
return result
else:
print("{} error:".format(apiname) + str(result))
exit(0)
return result
def prepare_request(self):
return self.gene_request(apiname=api_prepare,
data=self.gene_params(api_prepare))
def upload_request(self, taskid, upload_file_path):
file_object = open(upload_file_path, 'rb')
try:
index = 1
sig = SliceIdGenerator()
while True:
content = file_object.read(file_piece_sice)
if not content or len(content) == 0:
break
files = {
"filename": self.gene_params(api_upload).get("slice_id"),
"content": content
}
response = self.gene_request(api_upload,
data=self.gene_params(api_upload, taskid=taskid,
slice_id=sig.getNextSliceId()),
files=files)
if response.get('ok') != 0:
print('upload slice fail, response: ' + str(response))
return False
print('upload slice ' + str(index) + ' success')
index += 1
finally:
'file index:' + str(file_object.tell())
file_object.close()
return True
def merge_request(self, taskid):
return self.gene_request(api_merge, data=self.gene_params(api_merge, taskid=taskid))
def get_progress_request(self, taskid):
return self.gene_request(api_get_progress, data=self.gene_params(api_get_progress, taskid=taskid))
def get_result_request(self, taskid):
return self.gene_request(api_get_result, data=self.gene_params(api_get_result, taskid=taskid))
def all_api_request(self):
pre_result = self.prepare_request()
taskid = pre_result["data"]
self.upload_request(taskid=taskid, upload_file_path=self.upload_file_path)
self.merge_request(taskid=taskid)
while True:
progress = self.get_progress_request(taskid)
progress_dic = progress
if progress_dic['err_no'] != 0 and progress_dic['err_no'] != 26605:
print('task error: ' + progress_dic['failed'])
return
else:
data = progress_dic['data']
task_status = json.loads(data)
if task_status['status'] == 9:
print('task ' + taskid + ' finished')
break
print('The task ' + taskid + ' is in processing, task status: ' + str(data))
time.sleep(20)
res = self.get_result_request(taskid=taskid)
r = json.loads(res["data"])
with open(self.to_file,'w', encoding='utf-8') as file_obj:
for iterating_var in r:
file_obj.write(iterating_var["onebest"])
file_obj.write("\n")
if __name__ == '__main__':
api = RequestApi(
appid="xxx",
secret_key="xxx",
upload_file_path=r"C:/Users/DELL/Desktop/录音文件/20201104_163233.m4a",
to_file=r"C:/Users/DELL/Desktop/录音文件/20201104_163233.txt"
)
api.all_api_request()
Original: https://blog.csdn.net/yynan555/article/details/109536995
Author: yynan555
Title: Python讯飞语音转文字保存到文件
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