I am trying to add second mp3 file(5 second long) over first mp3 file (3 minute long) and it should start after 50 second. if possible it will be great to mix those two mp3 nicely and after that 5 second play first mp3 will keep playing . i am not stopping first mp3 but mixing second with first mp3 after 30 second.i tried itoffset but it start at the beginning .ffmpeg -i 12.mp3 -i 22.mp3 -vsync 2 -filter_complex  amerge -ac 2 -c:a libmp3lame -q:a 4 arjun.mp3ffmpeg -i concat:12.mp3|22.mp3 -acodec copy arjun.mp3ffmpeg -i 11.mp3 -i 22.mp3  -filter_complex [0:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=mono,atrim=end=20[aud1];[1:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=mono,atrim=end=240[bud2];[bud2]adelay=10000[aud2];[aud1][aud2]amix=inputs=2  amerge -ac 2 -c:a libmp3lame -q:a 4 arjun9.mp3ffmpeg -i 75.mp3 -itsoffset -700 -i 22.mp3 -vn -filter_complex amix 0055598.mp3ffmpeg -i 75.mp3 -itsoffset -700 -i 22.mp3 -vn -filter_complex amix 0055598.mp3
ffmpeg itsoffset for audio not working
ffmpeg