python3.9: TypeError: in method 'EchoCanceller_process', argument 2 of type 'std::string const &'

[xiaoqi91]

您好，我下载了最新的代码，用python3.9运行报了下面的错误：TypeError: in method 'EchoCanceller_process', argument 2 of type 'std::string const &'。我看之前也有人遇到了同样的错误，现在代码仍然不兼容python3？