How are the Data-files named?


Yesterday I saved a 1,5 hour long project (I had no time to export so I just saved the project), closed the program and forced shut down the computer (because I’m having an other issue with the computer and I have to force shut down it).

Today I tried to open the .aup file and the Audacity tells me to “ is a project file. Use 'File > Open command opens an Audacity project.” (My Audacity is in Finnish so I tried to translate the best I could)

So I assume it thinks I’m opening something else than .aup file… but at the same time it knows it is an .aup file but does not want to open it… I looked at it in notepad and the .aup file seems full of spaces (so empty/corrupted?)


It seems there is nothing I can do, other than try to arrange the .au files.

So! How are the .au files arranged? is there any logic? There must be right?
Or is the name randomized, so there is no way to know in witch order they are…?

There is like ~1700 .au files so it would be nice if there is a way to arrange them somehow… Have anyone made a program that could do this automatically?

I mean, it is only one 1,5 hour long continous stereo audio. It seems silly that there would be no logic in the data file…

Thank you for the help!!!

The names are partially random, so there is no way to know from the file names, which order they should go in. However, if it is an unedited recording, then the files creation / modification times will be in the correct order. Depending on the resolution of the system timer. it may not be possible to distinguish between left and right channels of a stereo recording (if the system has a high resolution timer, then the left channel blocks are time stamped before the corresponding right channel block).

If there has been any editing / processing done in the project, then the chances of manual recovery are close to zero because the time stamps will be out of order.

Note that with Audacity 2.2.2 (the current version), in the vast majority of cases where a crash occurs, Audacity is able to automatically recover most or all of the data automatically when next started. If Audacity can’t recover automatically, then something serious has gone wrong and you should look to fixing that so that it doesn’t happen again.

More info about manual recovery here: