Merge Mp3 Files Using Ffmpeg On Android

I am trying to merge two mp3 files using this command: ffmpeg -i 'concat:/storage/emulated/0/Recordings/oneone.mp3|/storage/emulated/0/Recordings/twone.mp3' -c copy /storage/emulat

Solution 1:

Are you sure you have read and write permissions on the device? Because from my experience the below command works perfectly fine.

 ffmpeg -i "concat:/sdcard/test1.mp3|/sdcard/test2.mp3" -acodec copy /sdcard/output.mp3