vivia

- 星级：4星半 - 名称：扫描宝 - 官网：https://www.yinxiang.com/products/scannable/ - 功能简述：识别纸张边缘，扫描操作轻松简单 - 测评文章：http://sspai.com/27850

same issue on raspberry pi 3 b: 

加参数-o both试试? https://www.raspberrypi.org/documentation/usage/audio/

@moracarlos did you solve the problem? I got the same problem now...