Audacity unable to locate specified Lame library file


For a long time, I’ve wanted to use Audacity on my Mac but can’t because of a missing Lame library file preventing MP3 exporting, I have no such problem on my ancient Window laptop. I have followed instructions to the letter to install and locate the library file, but I have got nowhere despite successfully installing Lame_Library_v3.98.2_for_Audacity_on_OSX. I am running OSX 10.11 with Audacity 2.1.2.

In the interest of getting this resolved as quick as possible, I made a screencast which I hope explains everything clearer and provides all information necessary to resolve this.
Password: exportmp3

Thank you for your help.


Hi Ian,

Mac can lock out access to usr/local/lib, as you saw from the red “No entry” sign.

The easy solution is to follow the Alternative zip download instructions. Using those you can place the required “libmp3lame.dylib” file anywhere you like in your own user space (such as on your Desktop).


Hi Gale (or anyone else that sees this),
Here’s a question for you: I have the libmp3lame.dylib plug-in on my desktop, but Audacity won’t recognize it, it is greyed out.
running os 10.10 and the latest audacity.
Any thoughts?

Unless you have Audacity 2.1.2 from you may not have the latest version. Please see the pink panel at the top of the page.

If you are having difficulties with LAME, forget the LAME installer and use the ZIP file instead: You can do it in an even simpler way. Just extract “libmp3lame.dylib” to the folder where you have Audacity installed, then restart Audacity. If you do it that way, be careful not to lose the “libmp3lame.dylib” file when you update Audacity.