FFMpeg merging audio files truncates output to shortest audio file

[Wayneos]

Hi there,

I am trying to merge some audio files using the command below, but the output is truncated to the shortest audio file (voiceover.wav).


ffmpeg -y -i video_backing.aac -i voiceover.wav -filter_complex [0:a]apad[main];[1:a]apad[aud1]; [main][aud1] -c:a libmp3lame -q:a 5 audiofinal.aac


Would anyone be able to assist me?

Thanks in advance,

Wayne