Sorry this file type is not permitted for security reasons.

.wav files are large — you might consider converting it to an .mp3 file.

Or, you could use this plugin to permit uploading of .wav files: https://www.ads-software.com/plugins/wp-add-mime-types/

Tried converting to mp3 after downloading Lame. Still won’t work. Same message “Sorry…”
Uploaded plugin but still didn’t work.

Any other suggestions?
Thanks.

Open a support ticket with (or call) your web host and ask to add the mime types you need to host.

Be sure to understand that hosting these files in your host account can use up bandwidth quickly.