I also tried -itsoffset and that appears to do nothing at all, regardless of where i position it. The command looks like this: ffmpeg -f concat -i mylist.txt -c copy TwoBeSureToWearFlowersInYourHair.mp3. Well concatenate the same two audio files from the same audio file: BeSureToWearFlowersInYourHair.mp3. Im using ffmpeg to cut slices from a flac audio file then concatenate them together. Using the amix filter didn't work either although i was able to combine an arbitrary number of input files, they all started at the same time, because i haven't been able to delay the onset of each individual component audio file beforehand. IN this section, well concatenate two audio files following the guide from How to concatenate (join, merge) media files. The script doesn't know beforehand how long each of the source audio files will be, so a simple -filter_complex using concat didn't work. Answer: If they are all encoded the same way, you can make a text file (code mymovies.txt/code) like so: codefile ‘./movie1.mp4’ file ‘./movie2.mp4’ file ‘./movie3.mp4’ /codeand then use the concat demuxer: codeffmpeg -f concat -i mymovies.txt -safe 0 -c copy movie123.mp4 /codeThe c. For example, if i have the files beep1.wav, beep2.wav, and beep3.wav, the resulting output.wav should be a mono sound file where the contents of beep2.wav will be heard starting at the 1-second mark, the contents of beep3.wav at the 2-second mark, etc. wav file must start n seconds into the final output file. I'm trying to write a script that will take an arbitrary number of of.
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