调用百度音频，文字转音频

flask发送文字请求，得到音频响应，写入BytestIo返回前端

    text = request.args.get("text").encode("utf-8")
    retData = getVoice(text)
    ls_f1 = base64.b64decode(retData)
    by = BytesIO(ls_f1)
    return send_file(by, mimetype='audio/mpeg')

来自为知笔记(Wiz)