Digital DJ Pool accepts WAV files too. If you upload an MP3, use constant bitrate (CBR) at 320 kbps.
Export from Audacity
Choose File > Export Audio, then enter a filename and choose where to save the file.
Choose MP3 as the format. In the MP3 export options, set Bit Rate Mode to Constant and set Quality to 320 kbps.
Complete the export. If an Edit Metadata Tags window appears, review the tags and continue.
Audacity includes the LAME MP3 encoder on Windows and macOS, so a separate LAME installation is not normally needed. If you use Linux and Audacity reports that the MP3 encoder is unavailable, install or enable a LAME library supported by your Audacity package.
