python音频转文字调用的是百度智能云的接口,因业务需求会涉及比较多数字,所以这里做了数字的处理,可根据自己的需求修改。
python
from flask import Flask, request, jsonify
import requests
from flask_limiter import Limiter
app = Flask(__name__)
limiter = Limiter(app) # 初始化限流扩展
API_KEY = "" #百度智能云上获取
SECRET_KEY = ""
import re
from cn2an import an2cn, transform
def replace_chinese_numbers(text):
# 使用正则表达式匹配句子中的中文数字
chinese_numbers = re.findall(r'[零一二三四五六七八九十百千万]+', text)
# 遍历匹配到的中文数字,逐一替换为阿拉伯数字
for chinese_number in chinese_numbers:
arabic_number = transform(chinese_number, 'cn2an')
text = text.replace(chinese_number, arabic_number)
return text
@app.route('/transcribe', methods=['POST'])
@limiter.limit("5 per second") # 设置限流规则为最多同时 5 个请求
def transcribe_audio():
audio_data = request.data
access_token = get_access_token()
if not access_token:
return jsonify({"error": "Error getting access token"}), 500
url = "https://vop.baidu.com/server_api"
headers = {
'Content-Type': 'audio/pcm; rate=16000', # 设置正确的 Content-Type
'Accept': 'application/json',
}
params = {
"cuid": "your_unique_id", # 替换为你的用户唯一标识,随便写
"token": access_token,
}
response = requests.post(url, headers=headers, params=params, data=audio_data)
if response.status_code == 200:
try:
result = response.json()
if "result" in result:
transcript = result["result"][0]
cleaned_transcript = replace_chinese_numbers(transcript)
print(cleaned_transcript)
return jsonify({"transcript": cleaned_transcript})
else:
return jsonify({"error": "No transcription found in the response"}), 500
except UserWarning as warning:
# 如果出现 UserWarning 异常,返回未处理的 transcript
warnings.warn(str(warning))
return jsonify({"transcript": transcript})
else:
return jsonify({"error": "Error in transcription request"}), 500
def get_access_token():
url = "https://aip.baidubce.com/oauth/2.0/token"
params = {"grant_type": "client_credentials", "client_id": API_KEY, "client_secret": SECRET_KEY}
response = requests.post(url, params=params)
if response.status_code == 200:
access_token = response.json().get("access_token")
return access_token
else:
print("Error getting access token:", response.text)
return None
if __name__ == '__main__':
app.run(host='0.0.0.0', port=16258)