I just now bought the music maker/studio software. When I try to record there is a pop-up that says "The Waveform Input Device' Microsoft Sound Mapper' can't record this format! Reason: Undefined External Error.
TRY THIS!!!!! here is how i fixed the same issue on my system.
1) Click file & go to - Program Preffrences then go to - System Options.
2) Go to Audio System.
3) Change the driver system to ASIO. Then hit OK. mine works fine with all updates up to date!
What I suspect is happening when this (Undefined External Error) comes up is, there is no audio device available. When you select ASIO in Audio System that will be the audio device it automatically chooses!!! HOW IS IT THAT MAGIX CANT TELL YOU HOW TO FIX THIS PROBLEM? Dear Magix, Can I please get a job with you please?!!? I can help many people not only resolve problems but I can teach them how to utilize many functions in Samplitude! l0l