What I would like to achieve; I have recordings from Rode Wireless Go II wireless microphones. They do not align, so my first inspirational thought was; <https://youtube.com/watch?v=rOMKP4Jgzw8> - load the two wav files - try to add them as mixer - mixer align That does *not* work, CinGG refuses to open mixers for audio only tracks. It does not really make sense. Can you work around this issue? Sure, create a one pixel PNG, and remux the wav into an MKV and then CinGG opens it. ffmpeg -loop 1 -y -i /tmp/rode.png -i REC00012.wav -shortest -acodec copy /tmp/test1.mkv So then the second part. Since my actual problem was that some parts of an edited video contained horrible cracking, I wanted to cut the individual pieces of that track, align it with the master audio track to fix the audio without doing it by ear. This is the reverse approach of what is currently seems to be possible. To overcome the issues with clips, I have cut out clips using ffmpeg, and tried to align them. Lets say there is obviously "Match All" which creates a nice segmentation fault (attached). But even with manually specifying in the master track position, it dit not align for me, until I manually dragged it to the matching audio position. I would like to take a short clip, and align this with the master track. This could increase workflow productivity, and would not require a single master track anymore. At this moment clips in Cinelerra cannot be used as a Mixer. What I would like to learn; Is there currently a way to manually create a master track to overcome the issues with audio (and clips)? -- Stefan