Your Audio File hosting possibilities, send or upload audio files for free. Check this websites to upload music.
If you are looking for a way to send and share large audio files privately, there are some nice free options. Via the providers Fidbak.audio, Swan and Soundcloud you can upload a limited number of files for free and listen to them via a web player at the same time. All 3 offer the service to download the files or send them to other people via a private link.
Wetransfer, Google Drive and Dropbox are other popular providers. However, they are not specialized in audio files. This means that you can't necessarily play wav or mp3 files through an online streaming player. If you only want to send the files to other people, all 3 are very suitable.
How to send large Audio Files
Check this wav, aiff and mp3 upload sites