ffmpeg -i /home/test/test.wav -acodec libopus -b:a 32k -vbr on -compression_level 10 /home/test/test_1.opus
ffmpeg -i /home/test/test_1.opus -ac 1 -ar 16000 /home/test/test_2.wav
如果没有效果可以查看下ffmpeg ,configuration 之中必需含有 --enable-libopus
参考资料:https://blog.youkuaiyun.com/lishenglong666/article/details/51906943