I don't see any option to export as mp3 from GarageBand.
As a work-around, share the song to iTunes and set iTunes to import as mp3. Than you can create mp3 versions in iTunes, see:
I am a professional voiceover talent and I rely on Garageband for part of my livelihood.
When posting my auditions on various "Pay-to-Play" sites, I am REQUIRED to use MP3 format. When I discovered that Garageband 10.0 does not allow you to "Export" to MP3 format, I was very upset! Some of the other workarounds (e.g., sending the Garageband recording to iTunes and using iTunes to convert it to MP3, using 3rd party software like "Audacity," record using Logic Pro and then "Bounce" the recording down to an MP3, etc.) slows me up, complicates my life, kills my productivity in how many auditions I can get out the door when I have limited time!
The GOOD NEWS is that I happened to stumble across, in the "Applications" folder, a "Garageband 6.0.5" folder. And there it was, the old version of Garageband that has the MP3 encoder (not to mention all of the EQ presets that are nice and quick to use)!
So check your "Applications" folder and just go back to using the good, old, reliable Garageband 6.0.5. You should be fine again.
this is awsome advice and don't despair.
you can not open files from Garageband X back into Garageband 6
i have found it very useful to open both applicatiions at once
the recording studo garagebandX
- most of the filtres are a bit more refined and the interface is that much more sophisticated - access to all the Garageband 6 filtres are through legacy and it is a more enjoyable environment in which to work
bounce the tracks to itunes - (often combining voices that make sense into one track (strings example) - which results in smaller file sizes
- then create a mix track in garageband6 by dragging the tracks from the mediabrowser.
export with full capability
i've only been doing this for two weeks since i discovered this inconvienience to customers but as far as i can tell the production quality for upload is equal. and there is the added bonus of making a natural streamlining of tracks that is a little like having a good technician at your side !
and most importantly the full access to the customisation of .mp3 files.
Why would they remove this option?!?!?!
Let's hope for an update that will bring back this option. Send feedback to the Apple Developer team, so they will know that we need this feature:
Like Green Lantern, I've got to respond quickly and do not have access to a desk top iTunes in that short time for conversion of GarageBand files. The format I provide my customer must be in an mp3 format. (They are not asking for my opinion or the merits of other formats.) As I don't have an archived version of GarageBand I need to use the current GBH format solution.
Perhaps an iPad app that could take the GB file and convert it to mp3? Any ideas?