Export Multiple (MP3) not continuing to next file (Win 10)

Audacity 2.1.2, installed from the .exe installer on Windows 10 Pro x64.
Tested with both lame_enc.dll version 3.99.3 and 3.99.5.

I’ve been using Audacity for several years now to Export Multiple MP3 files, with the files split based on labels, and with names and metadata based on the label track. Under Windows 7 and 8.1 it worked like a charm. Under Windows 10, not so much.

My previous Windows 10 computer was upgraded from Windows 8.1. Then I wiped the disk and installed Windows 10 from scratch. This current Windows 10 computer is a new purchase, not an upgrade or a reinstall. The same behaviour is observed every time. (And I’ve finally got around to asking the question.)

The “Exporting entire file at ” dialog appears as normal, with a countdown also as normal, but then things go a bit awry. The countdown reaches 0, but the export does not continue to the next file. Instead, the export continues to append silence to the end of the MP3 file.

Visually, there is no indication that anything is happening; it gives every appearance of having hung. However, unlike a genuine hang, the “Stop” and “Cancel” buttons do respond.

If I click on “Stop” then the export continues to the next file, but the same symptom recurs: when the countdown reaches 0 the export continues to append silence to the exported file.

The amount of silence which is appended each time depends on how quickly I click on “Stop” when the countdown reaches 0.

Any idea why this behaviour might occur, and how I might stop it? It always used to work as intended, before I started using Windows 10. I don’t particularly want to go back to Windows 8.1 (and Microsoft stopped mainstream support for Windows 7 two years ago), so it’d be nice if I could get it working under the current operating system.

Might you also have multiple Audacity tracks stacked on top of each other that don’t start at time zero? If so, just work with one audio track by using Tracks > Mix and Render. This is an Audacity bug that is fixed in the upcoming 2.1.3 release.


That’s exactly what I had: multiple tracks, with each successive track starting where the previous one finished.

I did as you suggested, and used the “Mix and Render” option, and now I can see Audacity exporting multiple MP3 files as before.

Thank you for the answer. This has been bugging me for months.

Just out of curiosity, which bug is it? I looked at http://wiki.audacityteam.org/wiki/Next_Release#Bugs_Addressed_in_this_Release as I fancied reading about it but none of the bugs there leaped out at me.

“Next Release” is a working document for Team, so it is best to look in the finished Release Notes for the version you are using. The bug was listed at http://wiki.audacityteam.org/wiki/Release_Notes_2.1.2#Label_Tracks in the 2.1.2 Release Notes.

The now closed report is http://bugzilla.audacityteam.org/show_bug.cgi?id=1199.


Super. Thank you. Here I was thinking it was an issue unique to Windows 10, rather than an issue in this particular version of Audacity. It didn’t occur to me to double-check which versions of Audacity I had been using under Windows 7 and 8.1.

Still, at least now I know how to work around the problem while waiting for 2.1.3 to be released.

Thank you again.