I have made mp3 files lots of times in the past, and I have never had problems with selecting and de-selecting sections to play - I do this when I am working on arrangements - in the past. There does not seem to be anything consistent about this, and both problems have started only today. There is a further complication in that I have some parts of some scores as selected for 'do not play', but when I change them back to 'play' (via the inspector) they still don't play! One or two work OK, but the others either stop after about 50% is exported (and then sometimes MS crashes), or they sometimes appear to export the mp3 file correctly but then nothing plays - I have a silent file! (and I am not arranging John Cage.) And then you could add the Audacity files to the LAME with Audacity directly.The problem is puzzling as I have tried it on about a dozen different scores.

In other instances, you could use Audacity software to record audios first and save them in MP3 files on your desktop. And you could view the added Audacity files in the interface and just click File > Export Audio to move on to the next step. You may need to click File > Open to load Audacity files that you want to convert and click the 'Open' button. Just free download Audacity software and the binary files that could be easily found on the LAME binaries web page. Here is the guide on how to convert Audacity to MP3 by using LAME with Audacity to encode to MP3s. LAME can be used with Audacity as a plugin. What this means in practice is that LAME is a simple, straight, yet powerful and flexible MP3 encoder. LAME is a free library that allows some applications to encode MP3 files. Together with LAME, Audacity could save Audacity files to MP3 format natively. Solution 1: How to convert Audacity files to MP3 with free LAME library

Video Demo of How to Use Leawo Music Recorder.

Solution 3: How to save Audacity files as MP3 with Audacity alternative - Leawo Music Recorder.

Solution 2: How to convert Audacity to MP3 with Leawo Video Converter.

Solution 1: How to convert Audacity files to MP3 with free LAME library.

Audacity export mp3 problems