How to merge and to read many au files? [SOLVED]

Good evening. I had a bad crash and I have lost the aup file and the .autosave file.
I have all the 2223 au files, from to, all sorted alphabetically. How could I merge, combine, and read these files? Thanks for your answers.
Ciro Discepolo

I removed your email address. It’s a bad to post that on the forum.

Which Windows and which Audacity? All three numbers.


Windows 7 64 bit and Audacity 2.0.3

You can use the Audacity 1.2 recovery utility to combine AU files that are sorted into alphanumerical order into WAV files. See:

Is the project you have originally created by an old 1.2 version of Audacity? Or is this work created in 2.0.3 and you have already renamed the randomly named AU files? If you are renaming AU files created by Audacity 2.0.3 then you must sort them by time before renaming them.


The crash occurred on a notebook with Windows XP and with Audacity 1.2.4. Then, trying to recover my voice file, I think I have got the damage and lost both the file that the aup and .autosave. Then I moved the folder with all files au on a Windows 7 64-bit desktop and with Audacity 2.0.3

1.2.4 is long obsolete. If you have XP Service Pack 3 (32-bit XP) or Service Pack 2 (64-bit XP) and SSE2 then you can use the current Audacity 2.1.1 from

You should consider updating that machine to Audacity 2.1.1 too.

1.2.4 did not have AUTOSAVE files. There was an AUP.BAK backup file, but it did not always open the project correctly because the files in the project’s _data folder could have changed after the AUP.BAK was written.


Following your precise instructions I was able to get my result. Thank you very much.